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Macros | Functions
sepgsql.h File Reference
#include "catalog/objectaddress.h"
#include "fmgr.h"
#include <selinux/selinux.h>
#include <selinux/avc.h>
Include dependency graph for sepgsql.h:
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros

#define SEPGSQL_LABEL_TAG   "selinux"
 
#define SEPGSQL_MODE_DEFAULT   1
 
#define SEPGSQL_MODE_PERMISSIVE   2
 
#define SEPGSQL_MODE_INTERNAL   3
 
#define SEPGSQL_MODE_DISABLED   4
 
#define SEPG_CLASS_PROCESS   0
 
#define SEPG_CLASS_FILE   1
 
#define SEPG_CLASS_DIR   2
 
#define SEPG_CLASS_LNK_FILE   3
 
#define SEPG_CLASS_CHR_FILE   4
 
#define SEPG_CLASS_BLK_FILE   5
 
#define SEPG_CLASS_SOCK_FILE   6
 
#define SEPG_CLASS_FIFO_FILE   7
 
#define SEPG_CLASS_DB_DATABASE   8
 
#define SEPG_CLASS_DB_SCHEMA   9
 
#define SEPG_CLASS_DB_TABLE   10
 
#define SEPG_CLASS_DB_SEQUENCE   11
 
#define SEPG_CLASS_DB_PROCEDURE   12
 
#define SEPG_CLASS_DB_COLUMN   13
 
#define SEPG_CLASS_DB_TUPLE   14
 
#define SEPG_CLASS_DB_BLOB   15
 
#define SEPG_CLASS_DB_LANGUAGE   16
 
#define SEPG_CLASS_DB_VIEW   17
 
#define SEPG_CLASS_MAX   18
 
#define SEPG_PROCESS__TRANSITION   (1<<0)
 
#define SEPG_PROCESS__DYNTRANSITION   (1<<1)
 
#define SEPG_PROCESS__SETCURRENT   (1<<2)
 
#define SEPG_FILE__READ   (1<<0)
 
#define SEPG_FILE__WRITE   (1<<1)
 
#define SEPG_FILE__CREATE   (1<<2)
 
#define SEPG_FILE__GETATTR   (1<<3)
 
#define SEPG_FILE__UNLINK   (1<<4)
 
#define SEPG_FILE__RENAME   (1<<5)
 
#define SEPG_FILE__APPEND   (1<<6)
 
#define SEPG_DIR__READ   (SEPG_FILE__READ)
 
#define SEPG_DIR__WRITE   (SEPG_FILE__WRITE)
 
#define SEPG_DIR__CREATE   (SEPG_FILE__CREATE)
 
#define SEPG_DIR__GETATTR   (SEPG_FILE__GETATTR)
 
#define SEPG_DIR__UNLINK   (SEPG_FILE__UNLINK)
 
#define SEPG_DIR__RENAME   (SEPG_FILE__RENAME)
 
#define SEPG_DIR__SEARCH   (1<<6)
 
#define SEPG_DIR__ADD_NAME   (1<<7)
 
#define SEPG_DIR__REMOVE_NAME   (1<<8)
 
#define SEPG_DIR__RMDIR   (1<<9)
 
#define SEPG_DIR__REPARENT   (1<<10)
 
#define SEPG_LNK_FILE__READ   (SEPG_FILE__READ)
 
#define SEPG_LNK_FILE__WRITE   (SEPG_FILE__WRITE)
 
#define SEPG_LNK_FILE__CREATE   (SEPG_FILE__CREATE)
 
#define SEPG_LNK_FILE__GETATTR   (SEPG_FILE__GETATTR)
 
#define SEPG_LNK_FILE__UNLINK   (SEPG_FILE__UNLINK)
 
#define SEPG_LNK_FILE__RENAME   (SEPG_FILE__RENAME)
 
#define SEPG_CHR_FILE__READ   (SEPG_FILE__READ)
 
#define SEPG_CHR_FILE__WRITE   (SEPG_FILE__WRITE)
 
#define SEPG_CHR_FILE__CREATE   (SEPG_FILE__CREATE)
 
#define SEPG_CHR_FILE__GETATTR   (SEPG_FILE__GETATTR)
 
#define SEPG_CHR_FILE__UNLINK   (SEPG_FILE__UNLINK)
 
#define SEPG_CHR_FILE__RENAME   (SEPG_FILE__RENAME)
 
#define SEPG_BLK_FILE__READ   (SEPG_FILE__READ)
 
#define SEPG_BLK_FILE__WRITE   (SEPG_FILE__WRITE)
 
#define SEPG_BLK_FILE__CREATE   (SEPG_FILE__CREATE)
 
#define SEPG_BLK_FILE__GETATTR   (SEPG_FILE__GETATTR)
 
#define SEPG_BLK_FILE__UNLINK   (SEPG_FILE__UNLINK)
 
#define SEPG_BLK_FILE__RENAME   (SEPG_FILE__RENAME)
 
#define SEPG_SOCK_FILE__READ   (SEPG_FILE__READ)
 
#define SEPG_SOCK_FILE__WRITE   (SEPG_FILE__WRITE)
 
#define SEPG_SOCK_FILE__CREATE   (SEPG_FILE__CREATE)
 
#define SEPG_SOCK_FILE__GETATTR   (SEPG_FILE__GETATTR)
 
#define SEPG_SOCK_FILE__UNLINK   (SEPG_FILE__UNLINK)
 
#define SEPG_SOCK_FILE__RENAME   (SEPG_FILE__RENAME)
 
#define SEPG_FIFO_FILE__READ   (SEPG_FILE__READ)
 
#define SEPG_FIFO_FILE__WRITE   (SEPG_FILE__WRITE)
 
#define SEPG_FIFO_FILE__CREATE   (SEPG_FILE__CREATE)
 
#define SEPG_FIFO_FILE__GETATTR   (SEPG_FILE__GETATTR)
 
#define SEPG_FIFO_FILE__UNLINK   (SEPG_FILE__UNLINK)
 
#define SEPG_FIFO_FILE__RENAME   (SEPG_FILE__RENAME)
 
#define SEPG_DB_DATABASE__CREATE   (1<<0)
 
#define SEPG_DB_DATABASE__DROP   (1<<1)
 
#define SEPG_DB_DATABASE__GETATTR   (1<<2)
 
#define SEPG_DB_DATABASE__SETATTR   (1<<3)
 
#define SEPG_DB_DATABASE__RELABELFROM   (1<<4)
 
#define SEPG_DB_DATABASE__RELABELTO   (1<<5)
 
#define SEPG_DB_DATABASE__ACCESS   (1<<6)
 
#define SEPG_DB_DATABASE__LOAD_MODULE   (1<<7)
 
#define SEPG_DB_SCHEMA__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_SCHEMA__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_SCHEMA__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_SCHEMA__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_SCHEMA__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_SCHEMA__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_SCHEMA__SEARCH   (1<<6)
 
#define SEPG_DB_SCHEMA__ADD_NAME   (1<<7)
 
#define SEPG_DB_SCHEMA__REMOVE_NAME   (1<<8)
 
#define SEPG_DB_TABLE__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_TABLE__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_TABLE__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_TABLE__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_TABLE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_TABLE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_TABLE__SELECT   (1<<6)
 
#define SEPG_DB_TABLE__UPDATE   (1<<7)
 
#define SEPG_DB_TABLE__INSERT   (1<<8)
 
#define SEPG_DB_TABLE__DELETE   (1<<9)
 
#define SEPG_DB_TABLE__LOCK   (1<<10)
 
#define SEPG_DB_TABLE__TRUNCATE   (1<<11)
 
#define SEPG_DB_SEQUENCE__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_SEQUENCE__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_SEQUENCE__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_SEQUENCE__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_SEQUENCE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_SEQUENCE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_SEQUENCE__GET_VALUE   (1<<6)
 
#define SEPG_DB_SEQUENCE__NEXT_VALUE   (1<<7)
 
#define SEPG_DB_SEQUENCE__SET_VALUE   (1<<8)
 
#define SEPG_DB_PROCEDURE__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_PROCEDURE__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_PROCEDURE__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_PROCEDURE__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_PROCEDURE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_PROCEDURE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_PROCEDURE__EXECUTE   (1<<6)
 
#define SEPG_DB_PROCEDURE__ENTRYPOINT   (1<<7)
 
#define SEPG_DB_PROCEDURE__INSTALL   (1<<8)
 
#define SEPG_DB_COLUMN__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_COLUMN__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_COLUMN__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_COLUMN__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_COLUMN__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_COLUMN__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_COLUMN__SELECT   (1<<6)
 
#define SEPG_DB_COLUMN__UPDATE   (1<<7)
 
#define SEPG_DB_COLUMN__INSERT   (1<<8)
 
#define SEPG_DB_TUPLE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_TUPLE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_TUPLE__SELECT   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_TUPLE__UPDATE   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_TUPLE__INSERT   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_TUPLE__DELETE   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_BLOB__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_BLOB__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_BLOB__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_BLOB__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_BLOB__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_BLOB__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_BLOB__READ   (1<<6)
 
#define SEPG_DB_BLOB__WRITE   (1<<7)
 
#define SEPG_DB_BLOB__IMPORT   (1<<8)
 
#define SEPG_DB_BLOB__EXPORT   (1<<9)
 
#define SEPG_DB_LANGUAGE__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_LANGUAGE__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_LANGUAGE__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_LANGUAGE__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_LANGUAGE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_LANGUAGE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_LANGUAGE__IMPLEMENT   (1<<6)
 
#define SEPG_DB_LANGUAGE__EXECUTE   (1<<7)
 
#define SEPG_DB_VIEW__CREATE   (SEPG_DB_DATABASE__CREATE)
 
#define SEPG_DB_VIEW__DROP   (SEPG_DB_DATABASE__DROP)
 
#define SEPG_DB_VIEW__GETATTR   (SEPG_DB_DATABASE__GETATTR)
 
#define SEPG_DB_VIEW__SETATTR   (SEPG_DB_DATABASE__SETATTR)
 
#define SEPG_DB_VIEW__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)
 
#define SEPG_DB_VIEW__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)
 
#define SEPG_DB_VIEW__EXPAND   (1<<6)
 
#define SEPGSQL_AVC_NOAUDIT   ((void *)(-1))
 

Functions

bool sepgsql_get_permissive (void)
 
bool sepgsql_get_debug_audit (void)
 
bool sepgsql_is_enabled (void)
 
int sepgsql_get_mode (void)
 
int sepgsql_set_mode (int new_mode)
 
bool sepgsql_getenforce (void)
 
void sepgsql_audit_log (bool denied, bool enforcing, const char *scontext, const char *tcontext, uint16 tclass, uint32 audited, const char *audit_name)
 
void sepgsql_compute_avd (const char *scontext, const char *tcontext, uint16 tclass, struct av_decision *avd)
 
char * sepgsql_compute_create (const char *scontext, const char *tcontext, uint16 tclass, const char *objname)
 
bool sepgsql_avc_check_perms_label (const char *tcontext, uint16 tclass, uint32 required, const char *audit_name, bool abort_on_violation)
 
bool sepgsql_avc_check_perms (const ObjectAddress *tobject, uint16 tclass, uint32 required, const char *audit_name, bool abort_on_violation)
 
char * sepgsql_avc_trusted_proc (Oid functionId)
 
void sepgsql_avc_init (void)
 
char * sepgsql_get_client_label (void)
 
void sepgsql_init_client_label (void)
 
char * sepgsql_get_label (Oid classId, Oid objectId, int32 subId)
 
void sepgsql_object_relabel (const ObjectAddress *object, const char *seclabel)
 
bool sepgsql_dml_privileges (List *rangeTabls, List *rteperminfos, bool abort_on_violation)
 
void sepgsql_database_post_create (Oid databaseId, const char *dtemplate)
 
void sepgsql_database_drop (Oid databaseId)
 
void sepgsql_database_relabel (Oid databaseId, const char *seclabel)
 
void sepgsql_database_setattr (Oid databaseId)
 
void sepgsql_schema_post_create (Oid namespaceId)
 
void sepgsql_schema_drop (Oid namespaceId)
 
void sepgsql_schema_relabel (Oid namespaceId, const char *seclabel)
 
void sepgsql_schema_setattr (Oid namespaceId)
 
bool sepgsql_schema_search (Oid namespaceId, bool abort_on_violation)
 
void sepgsql_schema_add_name (Oid namespaceId)
 
void sepgsql_schema_remove_name (Oid namespaceId)
 
void sepgsql_schema_rename (Oid namespaceId)
 
void sepgsql_attribute_post_create (Oid relOid, AttrNumber attnum)
 
void sepgsql_attribute_drop (Oid relOid, AttrNumber attnum)
 
void sepgsql_attribute_relabel (Oid relOid, AttrNumber attnum, const char *seclabel)
 
void sepgsql_attribute_setattr (Oid relOid, AttrNumber attnum)
 
void sepgsql_relation_post_create (Oid relOid)
 
void sepgsql_relation_drop (Oid relOid)
 
void sepgsql_relation_truncate (Oid relOid)
 
void sepgsql_relation_relabel (Oid relOid, const char *seclabel)
 
void sepgsql_relation_setattr (Oid relOid)
 
void sepgsql_proc_post_create (Oid functionId)
 
void sepgsql_proc_drop (Oid functionId)
 
void sepgsql_proc_relabel (Oid functionId, const char *seclabel)
 
void sepgsql_proc_setattr (Oid functionId)
 
void sepgsql_proc_execute (Oid functionId)
 

Macro Definition Documentation

◆ SEPG_BLK_FILE__CREATE

#define SEPG_BLK_FILE__CREATE   (SEPG_FILE__CREATE)

Definition at line 99 of file sepgsql.h.

◆ SEPG_BLK_FILE__GETATTR

#define SEPG_BLK_FILE__GETATTR   (SEPG_FILE__GETATTR)

Definition at line 100 of file sepgsql.h.

◆ SEPG_BLK_FILE__READ

#define SEPG_BLK_FILE__READ   (SEPG_FILE__READ)

Definition at line 97 of file sepgsql.h.

◆ SEPG_BLK_FILE__RENAME

#define SEPG_BLK_FILE__RENAME   (SEPG_FILE__RENAME)

Definition at line 102 of file sepgsql.h.

◆ SEPG_BLK_FILE__UNLINK

#define SEPG_BLK_FILE__UNLINK   (SEPG_FILE__UNLINK)

Definition at line 101 of file sepgsql.h.

◆ SEPG_BLK_FILE__WRITE

#define SEPG_BLK_FILE__WRITE   (SEPG_FILE__WRITE)

Definition at line 98 of file sepgsql.h.

◆ SEPG_CHR_FILE__CREATE

#define SEPG_CHR_FILE__CREATE   (SEPG_FILE__CREATE)

Definition at line 92 of file sepgsql.h.

◆ SEPG_CHR_FILE__GETATTR

#define SEPG_CHR_FILE__GETATTR   (SEPG_FILE__GETATTR)

Definition at line 93 of file sepgsql.h.

◆ SEPG_CHR_FILE__READ

#define SEPG_CHR_FILE__READ   (SEPG_FILE__READ)

Definition at line 90 of file sepgsql.h.

◆ SEPG_CHR_FILE__RENAME

#define SEPG_CHR_FILE__RENAME   (SEPG_FILE__RENAME)

Definition at line 95 of file sepgsql.h.

◆ SEPG_CHR_FILE__UNLINK

#define SEPG_CHR_FILE__UNLINK   (SEPG_FILE__UNLINK)

Definition at line 94 of file sepgsql.h.

◆ SEPG_CHR_FILE__WRITE

#define SEPG_CHR_FILE__WRITE   (SEPG_FILE__WRITE)

Definition at line 91 of file sepgsql.h.

◆ SEPG_CLASS_BLK_FILE

#define SEPG_CLASS_BLK_FILE   5

Definition at line 41 of file sepgsql.h.

◆ SEPG_CLASS_CHR_FILE

#define SEPG_CLASS_CHR_FILE   4

Definition at line 40 of file sepgsql.h.

◆ SEPG_CLASS_DB_BLOB

#define SEPG_CLASS_DB_BLOB   15

Definition at line 51 of file sepgsql.h.

◆ SEPG_CLASS_DB_COLUMN

#define SEPG_CLASS_DB_COLUMN   13

Definition at line 49 of file sepgsql.h.

◆ SEPG_CLASS_DB_DATABASE

#define SEPG_CLASS_DB_DATABASE   8

Definition at line 44 of file sepgsql.h.

◆ SEPG_CLASS_DB_LANGUAGE

#define SEPG_CLASS_DB_LANGUAGE   16

Definition at line 52 of file sepgsql.h.

◆ SEPG_CLASS_DB_PROCEDURE

#define SEPG_CLASS_DB_PROCEDURE   12

Definition at line 48 of file sepgsql.h.

◆ SEPG_CLASS_DB_SCHEMA

#define SEPG_CLASS_DB_SCHEMA   9

Definition at line 45 of file sepgsql.h.

◆ SEPG_CLASS_DB_SEQUENCE

#define SEPG_CLASS_DB_SEQUENCE   11

Definition at line 47 of file sepgsql.h.

◆ SEPG_CLASS_DB_TABLE

#define SEPG_CLASS_DB_TABLE   10

Definition at line 46 of file sepgsql.h.

◆ SEPG_CLASS_DB_TUPLE

#define SEPG_CLASS_DB_TUPLE   14

Definition at line 50 of file sepgsql.h.

◆ SEPG_CLASS_DB_VIEW

#define SEPG_CLASS_DB_VIEW   17

Definition at line 53 of file sepgsql.h.

◆ SEPG_CLASS_DIR

#define SEPG_CLASS_DIR   2

Definition at line 38 of file sepgsql.h.

◆ SEPG_CLASS_FIFO_FILE

#define SEPG_CLASS_FIFO_FILE   7

Definition at line 43 of file sepgsql.h.

◆ SEPG_CLASS_FILE

#define SEPG_CLASS_FILE   1

Definition at line 37 of file sepgsql.h.

◆ SEPG_CLASS_LNK_FILE

#define SEPG_CLASS_LNK_FILE   3

Definition at line 39 of file sepgsql.h.

◆ SEPG_CLASS_MAX

#define SEPG_CLASS_MAX   18

Definition at line 54 of file sepgsql.h.

◆ SEPG_CLASS_PROCESS

#define SEPG_CLASS_PROCESS   0

Definition at line 36 of file sepgsql.h.

◆ SEPG_CLASS_SOCK_FILE

#define SEPG_CLASS_SOCK_FILE   6

Definition at line 42 of file sepgsql.h.

◆ SEPG_DB_BLOB__CREATE

#define SEPG_DB_BLOB__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 187 of file sepgsql.h.

◆ SEPG_DB_BLOB__DROP

#define SEPG_DB_BLOB__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 188 of file sepgsql.h.

◆ SEPG_DB_BLOB__EXPORT

#define SEPG_DB_BLOB__EXPORT   (1<<9)

Definition at line 196 of file sepgsql.h.

◆ SEPG_DB_BLOB__GETATTR

#define SEPG_DB_BLOB__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 189 of file sepgsql.h.

◆ SEPG_DB_BLOB__IMPORT

#define SEPG_DB_BLOB__IMPORT   (1<<8)

Definition at line 195 of file sepgsql.h.

◆ SEPG_DB_BLOB__READ

#define SEPG_DB_BLOB__READ   (1<<6)

Definition at line 193 of file sepgsql.h.

◆ SEPG_DB_BLOB__RELABELFROM

#define SEPG_DB_BLOB__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 191 of file sepgsql.h.

◆ SEPG_DB_BLOB__RELABELTO

#define SEPG_DB_BLOB__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 192 of file sepgsql.h.

◆ SEPG_DB_BLOB__SETATTR

#define SEPG_DB_BLOB__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 190 of file sepgsql.h.

◆ SEPG_DB_BLOB__WRITE

#define SEPG_DB_BLOB__WRITE   (1<<7)

Definition at line 194 of file sepgsql.h.

◆ SEPG_DB_COLUMN__CREATE

#define SEPG_DB_COLUMN__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 170 of file sepgsql.h.

◆ SEPG_DB_COLUMN__DROP

#define SEPG_DB_COLUMN__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 171 of file sepgsql.h.

◆ SEPG_DB_COLUMN__GETATTR

#define SEPG_DB_COLUMN__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 172 of file sepgsql.h.

◆ SEPG_DB_COLUMN__INSERT

#define SEPG_DB_COLUMN__INSERT   (1<<8)

Definition at line 178 of file sepgsql.h.

◆ SEPG_DB_COLUMN__RELABELFROM

#define SEPG_DB_COLUMN__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 174 of file sepgsql.h.

◆ SEPG_DB_COLUMN__RELABELTO

#define SEPG_DB_COLUMN__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 175 of file sepgsql.h.

◆ SEPG_DB_COLUMN__SELECT

#define SEPG_DB_COLUMN__SELECT   (1<<6)

Definition at line 176 of file sepgsql.h.

◆ SEPG_DB_COLUMN__SETATTR

#define SEPG_DB_COLUMN__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 173 of file sepgsql.h.

◆ SEPG_DB_COLUMN__UPDATE

#define SEPG_DB_COLUMN__UPDATE   (1<<7)

Definition at line 177 of file sepgsql.h.

◆ SEPG_DB_DATABASE__ACCESS

#define SEPG_DB_DATABASE__ACCESS   (1<<6)

Definition at line 124 of file sepgsql.h.

◆ SEPG_DB_DATABASE__CREATE

#define SEPG_DB_DATABASE__CREATE   (1<<0)

Definition at line 118 of file sepgsql.h.

◆ SEPG_DB_DATABASE__DROP

#define SEPG_DB_DATABASE__DROP   (1<<1)

Definition at line 119 of file sepgsql.h.

◆ SEPG_DB_DATABASE__GETATTR

#define SEPG_DB_DATABASE__GETATTR   (1<<2)

Definition at line 120 of file sepgsql.h.

◆ SEPG_DB_DATABASE__LOAD_MODULE

#define SEPG_DB_DATABASE__LOAD_MODULE   (1<<7)

Definition at line 125 of file sepgsql.h.

◆ SEPG_DB_DATABASE__RELABELFROM

#define SEPG_DB_DATABASE__RELABELFROM   (1<<4)

Definition at line 122 of file sepgsql.h.

◆ SEPG_DB_DATABASE__RELABELTO

#define SEPG_DB_DATABASE__RELABELTO   (1<<5)

Definition at line 123 of file sepgsql.h.

◆ SEPG_DB_DATABASE__SETATTR

#define SEPG_DB_DATABASE__SETATTR   (1<<3)

Definition at line 121 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__CREATE

#define SEPG_DB_LANGUAGE__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 198 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__DROP

#define SEPG_DB_LANGUAGE__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 199 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__EXECUTE

#define SEPG_DB_LANGUAGE__EXECUTE   (1<<7)

Definition at line 205 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__GETATTR

#define SEPG_DB_LANGUAGE__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 200 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__IMPLEMENT

#define SEPG_DB_LANGUAGE__IMPLEMENT   (1<<6)

Definition at line 204 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__RELABELFROM

#define SEPG_DB_LANGUAGE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 202 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__RELABELTO

#define SEPG_DB_LANGUAGE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 203 of file sepgsql.h.

◆ SEPG_DB_LANGUAGE__SETATTR

#define SEPG_DB_LANGUAGE__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 201 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__CREATE

#define SEPG_DB_PROCEDURE__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 160 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__DROP

#define SEPG_DB_PROCEDURE__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 161 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__ENTRYPOINT

#define SEPG_DB_PROCEDURE__ENTRYPOINT   (1<<7)

Definition at line 167 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__EXECUTE

#define SEPG_DB_PROCEDURE__EXECUTE   (1<<6)

Definition at line 166 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__GETATTR

#define SEPG_DB_PROCEDURE__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 162 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__INSTALL

#define SEPG_DB_PROCEDURE__INSTALL   (1<<8)

Definition at line 168 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__RELABELFROM

#define SEPG_DB_PROCEDURE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 164 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__RELABELTO

#define SEPG_DB_PROCEDURE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 165 of file sepgsql.h.

◆ SEPG_DB_PROCEDURE__SETATTR

#define SEPG_DB_PROCEDURE__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 163 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__ADD_NAME

#define SEPG_DB_SCHEMA__ADD_NAME   (1<<7)

Definition at line 134 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__CREATE

#define SEPG_DB_SCHEMA__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 127 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__DROP

#define SEPG_DB_SCHEMA__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 128 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__GETATTR

#define SEPG_DB_SCHEMA__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 129 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__RELABELFROM

#define SEPG_DB_SCHEMA__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 131 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__RELABELTO

#define SEPG_DB_SCHEMA__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 132 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__REMOVE_NAME

#define SEPG_DB_SCHEMA__REMOVE_NAME   (1<<8)

Definition at line 135 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__SEARCH

#define SEPG_DB_SCHEMA__SEARCH   (1<<6)

Definition at line 133 of file sepgsql.h.

◆ SEPG_DB_SCHEMA__SETATTR

#define SEPG_DB_SCHEMA__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 130 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__CREATE

#define SEPG_DB_SEQUENCE__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 150 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__DROP

#define SEPG_DB_SEQUENCE__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 151 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__GET_VALUE

#define SEPG_DB_SEQUENCE__GET_VALUE   (1<<6)

Definition at line 156 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__GETATTR

#define SEPG_DB_SEQUENCE__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 152 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__NEXT_VALUE

#define SEPG_DB_SEQUENCE__NEXT_VALUE   (1<<7)

Definition at line 157 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__RELABELFROM

#define SEPG_DB_SEQUENCE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 154 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__RELABELTO

#define SEPG_DB_SEQUENCE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 155 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__SET_VALUE

#define SEPG_DB_SEQUENCE__SET_VALUE   (1<<8)

Definition at line 158 of file sepgsql.h.

◆ SEPG_DB_SEQUENCE__SETATTR

#define SEPG_DB_SEQUENCE__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 153 of file sepgsql.h.

◆ SEPG_DB_TABLE__CREATE

#define SEPG_DB_TABLE__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 137 of file sepgsql.h.

◆ SEPG_DB_TABLE__DELETE

#define SEPG_DB_TABLE__DELETE   (1<<9)

Definition at line 146 of file sepgsql.h.

◆ SEPG_DB_TABLE__DROP

#define SEPG_DB_TABLE__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 138 of file sepgsql.h.

◆ SEPG_DB_TABLE__GETATTR

#define SEPG_DB_TABLE__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 139 of file sepgsql.h.

◆ SEPG_DB_TABLE__INSERT

#define SEPG_DB_TABLE__INSERT   (1<<8)

Definition at line 145 of file sepgsql.h.

◆ SEPG_DB_TABLE__LOCK

#define SEPG_DB_TABLE__LOCK   (1<<10)

Definition at line 147 of file sepgsql.h.

◆ SEPG_DB_TABLE__RELABELFROM

#define SEPG_DB_TABLE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 141 of file sepgsql.h.

◆ SEPG_DB_TABLE__RELABELTO

#define SEPG_DB_TABLE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 142 of file sepgsql.h.

◆ SEPG_DB_TABLE__SELECT

#define SEPG_DB_TABLE__SELECT   (1<<6)

Definition at line 143 of file sepgsql.h.

◆ SEPG_DB_TABLE__SETATTR

#define SEPG_DB_TABLE__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 140 of file sepgsql.h.

◆ SEPG_DB_TABLE__TRUNCATE

#define SEPG_DB_TABLE__TRUNCATE   (1<<11)

Definition at line 148 of file sepgsql.h.

◆ SEPG_DB_TABLE__UPDATE

#define SEPG_DB_TABLE__UPDATE   (1<<7)

Definition at line 144 of file sepgsql.h.

◆ SEPG_DB_TUPLE__DELETE

#define SEPG_DB_TUPLE__DELETE   (SEPG_DB_DATABASE__DROP)

Definition at line 185 of file sepgsql.h.

◆ SEPG_DB_TUPLE__INSERT

#define SEPG_DB_TUPLE__INSERT   (SEPG_DB_DATABASE__CREATE)

Definition at line 184 of file sepgsql.h.

◆ SEPG_DB_TUPLE__RELABELFROM

#define SEPG_DB_TUPLE__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 180 of file sepgsql.h.

◆ SEPG_DB_TUPLE__RELABELTO

#define SEPG_DB_TUPLE__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 181 of file sepgsql.h.

◆ SEPG_DB_TUPLE__SELECT

#define SEPG_DB_TUPLE__SELECT   (SEPG_DB_DATABASE__GETATTR)

Definition at line 182 of file sepgsql.h.

◆ SEPG_DB_TUPLE__UPDATE

#define SEPG_DB_TUPLE__UPDATE   (SEPG_DB_DATABASE__SETATTR)

Definition at line 183 of file sepgsql.h.

◆ SEPG_DB_VIEW__CREATE

#define SEPG_DB_VIEW__CREATE   (SEPG_DB_DATABASE__CREATE)

Definition at line 207 of file sepgsql.h.

◆ SEPG_DB_VIEW__DROP

#define SEPG_DB_VIEW__DROP   (SEPG_DB_DATABASE__DROP)

Definition at line 208 of file sepgsql.h.

◆ SEPG_DB_VIEW__EXPAND

#define SEPG_DB_VIEW__EXPAND   (1<<6)

Definition at line 213 of file sepgsql.h.

◆ SEPG_DB_VIEW__GETATTR

#define SEPG_DB_VIEW__GETATTR   (SEPG_DB_DATABASE__GETATTR)

Definition at line 209 of file sepgsql.h.

◆ SEPG_DB_VIEW__RELABELFROM

#define SEPG_DB_VIEW__RELABELFROM   (SEPG_DB_DATABASE__RELABELFROM)

Definition at line 211 of file sepgsql.h.

◆ SEPG_DB_VIEW__RELABELTO

#define SEPG_DB_VIEW__RELABELTO   (SEPG_DB_DATABASE__RELABELTO)

Definition at line 212 of file sepgsql.h.

◆ SEPG_DB_VIEW__SETATTR

#define SEPG_DB_VIEW__SETATTR   (SEPG_DB_DATABASE__SETATTR)

Definition at line 210 of file sepgsql.h.

◆ SEPG_DIR__ADD_NAME

#define SEPG_DIR__ADD_NAME   (1<<7)

Definition at line 78 of file sepgsql.h.

◆ SEPG_DIR__CREATE

#define SEPG_DIR__CREATE   (SEPG_FILE__CREATE)

Definition at line 73 of file sepgsql.h.

◆ SEPG_DIR__GETATTR

#define SEPG_DIR__GETATTR   (SEPG_FILE__GETATTR)

Definition at line 74 of file sepgsql.h.

◆ SEPG_DIR__READ

#define SEPG_DIR__READ   (SEPG_FILE__READ)

Definition at line 71 of file sepgsql.h.

◆ SEPG_DIR__REMOVE_NAME

#define SEPG_DIR__REMOVE_NAME   (1<<8)

Definition at line 79 of file sepgsql.h.

◆ SEPG_DIR__RENAME

#define SEPG_DIR__RENAME   (SEPG_FILE__RENAME)

Definition at line 76 of file sepgsql.h.

◆ SEPG_DIR__REPARENT

#define SEPG_DIR__REPARENT   (1<<10)

Definition at line 81 of file sepgsql.h.

◆ SEPG_DIR__RMDIR

#define SEPG_DIR__RMDIR   (1<<9)

Definition at line 80 of file sepgsql.h.

◆ SEPG_DIR__SEARCH

#define SEPG_DIR__SEARCH   (1<<6)

Definition at line 77 of file sepgsql.h.

◆ SEPG_DIR__UNLINK

#define SEPG_DIR__UNLINK   (SEPG_FILE__UNLINK)

Definition at line 75 of file sepgsql.h.

◆ SEPG_DIR__WRITE

#define SEPG_DIR__WRITE   (SEPG_FILE__WRITE)

Definition at line 72 of file sepgsql.h.

◆ SEPG_FIFO_FILE__CREATE

#define SEPG_FIFO_FILE__CREATE   (SEPG_FILE__CREATE)

Definition at line 113 of file sepgsql.h.

◆ SEPG_FIFO_FILE__GETATTR

#define SEPG_FIFO_FILE__GETATTR   (SEPG_FILE__GETATTR)

Definition at line 114 of file sepgsql.h.

◆ SEPG_FIFO_FILE__READ

#define SEPG_FIFO_FILE__READ   (SEPG_FILE__READ)

Definition at line 111 of file sepgsql.h.

◆ SEPG_FIFO_FILE__RENAME

#define SEPG_FIFO_FILE__RENAME   (SEPG_FILE__RENAME)

Definition at line 116 of file sepgsql.h.

◆ SEPG_FIFO_FILE__UNLINK

#define SEPG_FIFO_FILE__UNLINK   (SEPG_FILE__UNLINK)

Definition at line 115 of file sepgsql.h.

◆ SEPG_FIFO_FILE__WRITE

#define SEPG_FIFO_FILE__WRITE   (SEPG_FILE__WRITE)

Definition at line 112 of file sepgsql.h.

◆ SEPG_FILE__APPEND

#define SEPG_FILE__APPEND   (1<<6)

Definition at line 69 of file sepgsql.h.

◆ SEPG_FILE__CREATE

#define SEPG_FILE__CREATE   (1<<2)

Definition at line 65 of file sepgsql.h.

◆ SEPG_FILE__GETATTR

#define SEPG_FILE__GETATTR   (1<<3)

Definition at line 66 of file sepgsql.h.

◆ SEPG_FILE__READ

#define SEPG_FILE__READ   (1<<0)

Definition at line 63 of file sepgsql.h.

◆ SEPG_FILE__RENAME

#define SEPG_FILE__RENAME   (1<<5)

Definition at line 68 of file sepgsql.h.

◆ SEPG_FILE__UNLINK

#define SEPG_FILE__UNLINK   (1<<4)

Definition at line 67 of file sepgsql.h.

◆ SEPG_FILE__WRITE

#define SEPG_FILE__WRITE   (1<<1)

Definition at line 64 of file sepgsql.h.

◆ SEPG_LNK_FILE__CREATE

#define SEPG_LNK_FILE__CREATE   (SEPG_FILE__CREATE)

Definition at line 85 of file sepgsql.h.

◆ SEPG_LNK_FILE__GETATTR

#define SEPG_LNK_FILE__GETATTR   (SEPG_FILE__GETATTR)

Definition at line 86 of file sepgsql.h.

◆ SEPG_LNK_FILE__READ

#define SEPG_LNK_FILE__READ   (SEPG_FILE__READ)

Definition at line 83 of file sepgsql.h.

◆ SEPG_LNK_FILE__RENAME

#define SEPG_LNK_FILE__RENAME   (SEPG_FILE__RENAME)

Definition at line 88 of file sepgsql.h.

◆ SEPG_LNK_FILE__UNLINK

#define SEPG_LNK_FILE__UNLINK   (SEPG_FILE__UNLINK)

Definition at line 87 of file sepgsql.h.

◆ SEPG_LNK_FILE__WRITE

#define SEPG_LNK_FILE__WRITE   (SEPG_FILE__WRITE)

Definition at line 84 of file sepgsql.h.

◆ SEPG_PROCESS__DYNTRANSITION

#define SEPG_PROCESS__DYNTRANSITION   (1<<1)

Definition at line 60 of file sepgsql.h.

◆ SEPG_PROCESS__SETCURRENT

#define SEPG_PROCESS__SETCURRENT   (1<<2)

Definition at line 61 of file sepgsql.h.

◆ SEPG_PROCESS__TRANSITION

#define SEPG_PROCESS__TRANSITION   (1<<0)

Definition at line 59 of file sepgsql.h.

◆ SEPG_SOCK_FILE__CREATE

#define SEPG_SOCK_FILE__CREATE   (SEPG_FILE__CREATE)

Definition at line 106 of file sepgsql.h.

◆ SEPG_SOCK_FILE__GETATTR

#define SEPG_SOCK_FILE__GETATTR   (SEPG_FILE__GETATTR)

Definition at line 107 of file sepgsql.h.

◆ SEPG_SOCK_FILE__READ

#define SEPG_SOCK_FILE__READ   (SEPG_FILE__READ)

Definition at line 104 of file sepgsql.h.

◆ SEPG_SOCK_FILE__RENAME

#define SEPG_SOCK_FILE__RENAME   (SEPG_FILE__RENAME)

Definition at line 109 of file sepgsql.h.

◆ SEPG_SOCK_FILE__UNLINK

#define SEPG_SOCK_FILE__UNLINK   (SEPG_FILE__UNLINK)

Definition at line 108 of file sepgsql.h.

◆ SEPG_SOCK_FILE__WRITE

#define SEPG_SOCK_FILE__WRITE   (SEPG_FILE__WRITE)

Definition at line 105 of file sepgsql.h.

◆ SEPGSQL_AVC_NOAUDIT

#define SEPGSQL_AVC_NOAUDIT   ((void *)(-1))

Definition at line 250 of file sepgsql.h.

◆ SEPGSQL_LABEL_TAG

#define SEPGSQL_LABEL_TAG   "selinux"

Definition at line 23 of file sepgsql.h.

◆ SEPGSQL_MODE_DEFAULT

#define SEPGSQL_MODE_DEFAULT   1

Definition at line 28 of file sepgsql.h.

◆ SEPGSQL_MODE_DISABLED

#define SEPGSQL_MODE_DISABLED   4

Definition at line 31 of file sepgsql.h.

◆ SEPGSQL_MODE_INTERNAL

#define SEPGSQL_MODE_INTERNAL   3

Definition at line 30 of file sepgsql.h.

◆ SEPGSQL_MODE_PERMISSIVE

#define SEPGSQL_MODE_PERMISSIVE   2

Definition at line 29 of file sepgsql.h.

Function Documentation

◆ sepgsql_attribute_drop()

void sepgsql_attribute_drop ( Oid  relOid,
AttrNumber  attnum 
)
extern

Definition at line 133 of file relation.c.

134{
135 ObjectAddress object;
136 char *audit_name;
137 char relkind = get_rel_relkind(relOid);
138
139 if (relkind != RELKIND_RELATION && relkind != RELKIND_PARTITIONED_TABLE)
140 return;
141
142 /*
143 * check db_column:{drop} permission
144 */
145 object.classId = RelationRelationId;
146 object.objectId = relOid;
147 object.objectSubId = attnum;
148 audit_name = getObjectIdentity(&object, false);
149
150 sepgsql_avc_check_perms(&object,
151 SEPG_CLASS_DB_COLUMN,
152 SEPG_DB_COLUMN__DROP,
153 audit_name,
154 true);
155 pfree(audit_name);
156}
get_rel_relkind
char get_rel_relkind(Oid relid)
Definition lsyscache.c:2153
pfree
void pfree(void *pointer)
Definition mcxt.c:1616
getObjectIdentity
char * getObjectIdentity(const ObjectAddress *object, bool missing_ok)
Definition objectaddress.c:4823
attnum
int16 attnum
Definition pg_attribute.h:74
fb
static int fb(int x)
Definition preproc-init.c:92
SEPG_DB_COLUMN__DROP
#define SEPG_DB_COLUMN__DROP
Definition sepgsql.h:171
SEPG_CLASS_DB_COLUMN
#define SEPG_CLASS_DB_COLUMN
Definition sepgsql.h:49
sepgsql_avc_check_perms
bool sepgsql_avc_check_perms(const ObjectAddress *tobject, uint16 tclass, uint32 required, const char *audit_name, bool abort_on_violation)
Definition uavc.c:420

References attnum, fb(), get_rel_relkind(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_COLUMN, SEPG_DB_COLUMN__DROP, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_attribute_post_create()

void sepgsql_attribute_post_create ( Oid  relOid,
AttrNumber  attnum 
)
extern

Definition at line 43 of file relation.c.

44{
45 Relation rel;
46 ScanKeyData skey[2];
47 SysScanDesc sscan;
48 HeapTuple tuple;
49 char *scontext;
50 char *tcontext;
51 char *ncontext;
52 ObjectAddress object;
53 Form_pg_attribute attForm;
54 StringInfoData audit_name;
55 char relkind = get_rel_relkind(relOid);
56
57 /*
58 * Only attributes within regular relations or partition relations have
59 * individual security labels.
60 */
61 if (relkind != RELKIND_RELATION && relkind != RELKIND_PARTITIONED_TABLE)
62 return;
63
64 /*
65 * Compute a default security label of the new column underlying the
66 * specified relation, and check permission to create it.
67 */
68 rel = table_open(AttributeRelationId, AccessShareLock);
69
70 ScanKeyInit(&skey[0],
71 Anum_pg_attribute_attrelid,
72 BTEqualStrategyNumber, F_OIDEQ,
73 ObjectIdGetDatum(relOid));
74 ScanKeyInit(&skey[1],
75 Anum_pg_attribute_attnum,
76 BTEqualStrategyNumber, F_INT2EQ,
77 Int16GetDatum(attnum));
78
79 sscan = systable_beginscan(rel, AttributeRelidNumIndexId, true,
80 SnapshotSelf, 2, &skey[0]);
81
82 tuple = systable_getnext(sscan);
83 if (!HeapTupleIsValid(tuple))
84 elog(ERROR, "could not find tuple for column %d of relation %u",
85 attnum, relOid);
86
87 attForm = (Form_pg_attribute) GETSTRUCT(tuple);
88
89 scontext = sepgsql_get_client_label();
90 tcontext = sepgsql_get_label(RelationRelationId, relOid, 0);
91 ncontext = sepgsql_compute_create(scontext, tcontext,
92 SEPG_CLASS_DB_COLUMN,
93 NameStr(attForm->attname));
94
95 /*
96 * check db_column:{create} permission
97 */
98 object.classId = RelationRelationId;
99 object.objectId = relOid;
100 object.objectSubId = 0;
101
102 initStringInfo(&audit_name);
103 appendStringInfo(&audit_name, "%s.%s",
104 getObjectIdentity(&object, false),
105 quote_identifier(NameStr(attForm->attname)));
106 sepgsql_avc_check_perms_label(ncontext,
107 SEPG_CLASS_DB_COLUMN,
108 SEPG_DB_COLUMN__CREATE,
109 audit_name.data,
110 true);
111
112 /*
113 * Assign the default security label on a new procedure
114 */
115 object.classId = RelationRelationId;
116 object.objectId = relOid;
117 object.objectSubId = attnum;
118 SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, ncontext);
119
120 systable_endscan(sscan);
121 table_close(rel, AccessShareLock);
122
123 pfree(tcontext);
124 pfree(ncontext);
125}
NameStr
#define NameStr(name)
Definition c.h:765
ERROR
#define ERROR
Definition elog.h:39
elog
#define elog(elevel,...)
Definition elog.h:226
systable_endscan
void systable_endscan(SysScanDesc sysscan)
Definition genam.c:603
systable_getnext
HeapTuple systable_getnext(SysScanDesc sysscan)
Definition genam.c:514
systable_beginscan
SysScanDesc systable_beginscan(Relation heapRelation, Oid indexId, bool indexOK, Snapshot snapshot, int nkeys, ScanKey key)
Definition genam.c:388
HeapTupleIsValid
#define HeapTupleIsValid(tuple)
Definition htup.h:78
GETSTRUCT
static void * GETSTRUCT(const HeapTupleData *tuple)
Definition htup_details.h:728
sepgsql_get_label
char * sepgsql_get_label(Oid classId, Oid objectId, int32 subId)
Definition label.c:444
sepgsql_get_client_label
char * sepgsql_get_client_label(void)
Definition label.c:79
AccessShareLock
#define AccessShareLock
Definition lockdefs.h:36
Form_pg_attribute
FormData_pg_attribute * Form_pg_attribute
Definition pg_attribute.h:202
Int16GetDatum
static Datum Int16GetDatum(int16 X)
Definition postgres.h:182
ObjectIdGetDatum
static Datum ObjectIdGetDatum(Oid X)
Definition postgres.h:262
quote_identifier
const char * quote_identifier(const char *ident)
Definition ruleutils.c:13060
ScanKeyInit
void ScanKeyInit(ScanKey entry, AttrNumber attributeNumber, StrategyNumber strategy, RegProcedure procedure, Datum argument)
Definition scankey.c:76
SetSecurityLabel
void SetSecurityLabel(const ObjectAddress *object, const char *provider, const char *label)
Definition seclabel.c:404
sepgsql_compute_create
char * sepgsql_compute_create(const char *scontext, const char *tcontext, uint16 tclass, const char *objname)
Definition selinux.c:842
SEPG_DB_COLUMN__CREATE
#define SEPG_DB_COLUMN__CREATE
Definition sepgsql.h:170
sepgsql_avc_check_perms_label
bool sepgsql_avc_check_perms_label(const char *tcontext, uint16 tclass, uint32 required, const char *audit_name, bool abort_on_violation)
Definition uavc.c:337
SEPGSQL_LABEL_TAG
#define SEPGSQL_LABEL_TAG
Definition sepgsql.h:23
SnapshotSelf
#define SnapshotSelf
Definition snapmgr.h:32
BTEqualStrategyNumber
#define BTEqualStrategyNumber
Definition stratnum.h:31
appendStringInfo
void appendStringInfo(StringInfo str, const char *fmt,...)
Definition stringinfo.c:145
initStringInfo
void initStringInfo(StringInfo str)
Definition stringinfo.c:97
table_close
void table_close(Relation relation, LOCKMODE lockmode)
Definition table.c:126
table_open
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition table.c:40

References AccessShareLock, appendStringInfo(), attnum, BTEqualStrategyNumber, elog, ERROR, fb(), get_rel_relkind(), getObjectIdentity(), GETSTRUCT(), HeapTupleIsValid, initStringInfo(), Int16GetDatum(), NameStr, ObjectIdGetDatum(), pfree(), quote_identifier(), ScanKeyInit(), SEPG_CLASS_DB_COLUMN, SEPG_DB_COLUMN__CREATE, sepgsql_avc_check_perms_label(), sepgsql_compute_create(), sepgsql_get_client_label(), sepgsql_get_label(), SEPGSQL_LABEL_TAG, SetSecurityLabel(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access().

◆ sepgsql_attribute_relabel()

void sepgsql_attribute_relabel ( Oid  relOid,
AttrNumber  attnum,
const char *  seclabel 
)
extern

Definition at line 165 of file relation.c.

167{
168 ObjectAddress object;
169 char *audit_name;
170 char relkind = get_rel_relkind(relOid);
171
172 if (relkind != RELKIND_RELATION && relkind != RELKIND_PARTITIONED_TABLE)
173 ereport(ERROR,
174 (errcode(ERRCODE_WRONG_OBJECT_TYPE),
175 errmsg("cannot set security label on non-regular columns")));
176
177 object.classId = RelationRelationId;
178 object.objectId = relOid;
179 object.objectSubId = attnum;
180 audit_name = getObjectIdentity(&object, false);
181
182 /*
183 * check db_column:{setattr relabelfrom} permission
184 */
185 sepgsql_avc_check_perms(&object,
186 SEPG_CLASS_DB_COLUMN,
187 SEPG_DB_COLUMN__SETATTR |
188 SEPG_DB_COLUMN__RELABELFROM,
189 audit_name,
190 true);
191
192 /*
193 * check db_column:{relabelto} permission
194 */
195 sepgsql_avc_check_perms_label(seclabel,
196 SEPG_CLASS_DB_COLUMN,
197 SEPG_DB_PROCEDURE__RELABELTO,
198 audit_name,
199 true);
200 pfree(audit_name);
201}
errcode
int errcode(int sqlerrcode)
Definition elog.c:863
errmsg
int errmsg(const char *fmt,...)
Definition elog.c:1080
ereport
#define ereport(elevel,...)
Definition elog.h:150
SEPG_DB_COLUMN__SETATTR
#define SEPG_DB_COLUMN__SETATTR
Definition sepgsql.h:173
SEPG_DB_COLUMN__RELABELFROM
#define SEPG_DB_COLUMN__RELABELFROM
Definition sepgsql.h:174
SEPG_DB_PROCEDURE__RELABELTO
#define SEPG_DB_PROCEDURE__RELABELTO
Definition sepgsql.h:165

References attnum, ereport, errcode(), errmsg(), ERROR, fb(), get_rel_relkind(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_COLUMN, SEPG_DB_COLUMN__RELABELFROM, SEPG_DB_COLUMN__SETATTR, SEPG_DB_PROCEDURE__RELABELTO, sepgsql_avc_check_perms(), and sepgsql_avc_check_perms_label().

Referenced by sepgsql_object_relabel().

◆ sepgsql_attribute_setattr()

void sepgsql_attribute_setattr ( Oid  relOid,
AttrNumber  attnum 
)
extern

Definition at line 209 of file relation.c.

210{
211 ObjectAddress object;
212 char *audit_name;
213 char relkind = get_rel_relkind(relOid);
214
215 if (relkind != RELKIND_RELATION && relkind != RELKIND_PARTITIONED_TABLE)
216 return;
217
218 /*
219 * check db_column:{setattr} permission
220 */
221 object.classId = RelationRelationId;
222 object.objectId = relOid;
223 object.objectSubId = attnum;
224 audit_name = getObjectIdentity(&object, false);
225
226 sepgsql_avc_check_perms(&object,
227 SEPG_CLASS_DB_COLUMN,
228 SEPG_DB_COLUMN__SETATTR,
229 audit_name,
230 true);
231 pfree(audit_name);
232}

References attnum, fb(), get_rel_relkind(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_COLUMN, SEPG_DB_COLUMN__SETATTR, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_audit_log()

void sepgsql_audit_log ( bool  denied,
bool  enforcing,
const char *  scontext,
const char *  tcontext,
uint16  tclass,
uint32  audited,
const char *  audit_name 
)
extern

Definition at line 678 of file selinux.c.

685{
686 StringInfoData buf;
687 const char *class_name;
688 const char *av_name;
689 int i;
690
691 /* lookup name of the object class */
692 Assert(tclass < SEPG_CLASS_MAX);
693 class_name = selinux_catalog[tclass].class_name;
694
695 /* lookup name of the permissions */
696 initStringInfo(&buf);
697 appendStringInfo(&buf, "%s {",
698 (denied ? "denied" : "allowed"));
699 for (i = 0; selinux_catalog[tclass].av[i].av_name; i++)
700 {
701 if (audited & (1UL << i))
702 {
703 av_name = selinux_catalog[tclass].av[i].av_name;
704 appendStringInfo(&buf, " %s", av_name);
705 }
706 }
707 appendStringInfoString(&buf, " }");
708
709 /*
710 * Call external audit module, if loaded
711 */
712 appendStringInfo(&buf, " scontext=%s tcontext=%s tclass=%s",
713 scontext, tcontext, class_name);
714 if (audit_name)
715 appendStringInfo(&buf, " name=\"%s\"", audit_name);
716
717 if (enforcing)
718 appendStringInfoString(&buf, " permissive=0");
719 else
720 appendStringInfoString(&buf, " permissive=1");
721
722 ereport(LOG, (errmsg("SELinux: %s", buf.data)));
723}
Assert
#define Assert(condition)
Definition c.h:873
LOG
#define LOG
Definition elog.h:31
i
int i
Definition isn.c:77
buf
static char buf[DEFAULT_XLOG_SEG_SIZE]
Definition pg_test_fsync.c:71
av_name
const char * av_name
Definition selinux.c:36
class_name
const char * class_name
Definition selinux.c:32
selinux_catalog
static struct @10 selinux_catalog[]
SEPG_CLASS_MAX
#define SEPG_CLASS_MAX
Definition sepgsql.h:54
appendStringInfoString
void appendStringInfoString(StringInfo str, const char *s)
Definition stringinfo.c:230

References appendStringInfo(), appendStringInfoString(), Assert, av_name, buf, class_name, ereport, errmsg(), fb(), i, initStringInfo(), LOG, selinux_catalog, and SEPG_CLASS_MAX.

Referenced by sepgsql_avc_check_perms_label().

◆ sepgsql_avc_check_perms()

bool sepgsql_avc_check_perms ( const ObjectAddress *  tobject,
uint16  tclass,
uint32  required,
const char *  audit_name,
bool  abort_on_violation 
)
extern

Definition at line 420 of file uavc.c.

424{
425 char *tcontext = GetSecurityLabel(tobject, SEPGSQL_LABEL_TAG);
426 bool rc;
427
428 rc = sepgsql_avc_check_perms_label(tcontext,
429 tclass, required,
430 audit_name, abort_on_violation);
431 if (tcontext)
432 pfree(tcontext);
433
434 return rc;
435}
GetSecurityLabel
char * GetSecurityLabel(const ObjectAddress *object, const char *provider)
Definition seclabel.c:272
sepgsql_avc_check_perms_label
bool sepgsql_avc_check_perms_label(const char *tcontext, uint16 tclass, uint32 required, const char *audit_name, bool abort_on_violation)
Definition uavc.c:337

References fb(), GetSecurityLabel(), pfree(), sepgsql_avc_check_perms_label(), and SEPGSQL_LABEL_TAG.

Referenced by check_relation_privileges(), check_schema_perms(), sepgsql_attribute_drop(), sepgsql_attribute_relabel(), sepgsql_attribute_setattr(), sepgsql_database_drop(), sepgsql_database_relabel(), sepgsql_database_setattr(), sepgsql_fmgr_hook(), sepgsql_needs_fmgr_hook(), sepgsql_proc_drop(), sepgsql_proc_execute(), sepgsql_proc_post_create(), sepgsql_proc_relabel(), sepgsql_proc_setattr(), sepgsql_relation_drop(), sepgsql_relation_post_create(), sepgsql_relation_relabel(), sepgsql_relation_setattr(), sepgsql_relation_truncate(), sepgsql_schema_drop(), and sepgsql_schema_relabel().

◆ sepgsql_avc_check_perms_label()

bool sepgsql_avc_check_perms_label ( const char *  tcontext,
uint16  tclass,
uint32  required,
const char *  audit_name,
bool  abort_on_violation 
)
extern

Definition at line 337 of file uavc.c.

341{
342 char *scontext = sepgsql_get_client_label();
343 avc_cache *cache;
344 uint32 denied;
345 uint32 audited;
346 bool result;
347
348 sepgsql_avc_check_valid();
349 do
350 {
351 result = true;
352
353 /*
354 * If the target object is unlabeled, we perform the check using the
355 * label supplied by sepgsql_avc_unlabeled().
356 */
357 if (tcontext)
358 cache = sepgsql_avc_lookup(scontext, tcontext, tclass);
359 else
360 cache = sepgsql_avc_lookup(scontext,
361 sepgsql_avc_unlabeled(), tclass);
362
363 denied = required & ~cache->allowed;
364
365 /*
366 * Compute permissions to be audited
367 */
368 if (sepgsql_get_debug_audit())
369 audited = (denied ? (denied & ~0) : (required & ~0));
370 else
371 audited = denied ? (denied & cache->auditdeny)
372 : (required & cache->auditallow);
373
374 if (denied)
375 {
376 /*
377 * In permissive mode or permissive domain, violated permissions
378 * shall be audited to the log files at once, and then implicitly
379 * allowed to avoid a flood of access denied logs, because the
380 * purpose of permissive mode/domain is to collect a violation log
381 * that will make it possible to fix up the security policy.
382 */
383 if (!sepgsql_getenforce() || cache->permissive)
384 cache->allowed |= required;
385 else
386 result = false;
387 }
388 } while (!sepgsql_avc_check_valid());
389
390 /*
391 * In the case when we have something auditable actions here,
392 * sepgsql_audit_log shall be called with text representation of security
393 * labels for both of subject and object. It records this access
394 * violation, so DBA will be able to find out unexpected security problems
395 * later.
396 */
397 if (audited != 0 &&
398 audit_name != SEPGSQL_AVC_NOAUDIT &&
399 sepgsql_get_mode() != SEPGSQL_MODE_INTERNAL)
400 {
401 sepgsql_audit_log(denied != 0,
402 (sepgsql_getenforce() && !cache->permissive),
403 cache->scontext,
404 cache->tcontext_is_valid ?
405 cache->tcontext : sepgsql_avc_unlabeled(),
406 cache->tclass,
407 audited,
408 audit_name);
409 }
410
411 if (abort_on_violation && !result)
412 ereport(ERROR,
413 (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
414 errmsg("SELinux: security policy violation")));
415
416 return result;
417}
uint32
uint32_t uint32
Definition c.h:546
sepgsql_get_debug_audit
bool sepgsql_get_debug_audit(void)
Definition hooks.c:77
generate_unaccent_rules.required
required
Definition generate_unaccent_rules.py:285
sepgsql_get_mode
int sepgsql_get_mode(void)
Definition selinux.c:625
sepgsql_audit_log
void sepgsql_audit_log(bool denied, bool enforcing, const char *scontext, const char *tcontext, uint16 tclass, uint32 audited, const char *audit_name)
Definition selinux.c:678
sepgsql_getenforce
bool sepgsql_getenforce(void)
Definition selinux.c:651
SEPGSQL_MODE_INTERNAL
#define SEPGSQL_MODE_INTERNAL
Definition sepgsql.h:30
SEPGSQL_AVC_NOAUDIT
#define SEPGSQL_AVC_NOAUDIT
Definition sepgsql.h:250
avc_cache
Definition uavc.c:31
avc_cache::allowed
uint32 allowed
Definition uavc.c:37
avc_cache::auditdeny
uint32 auditdeny
Definition uavc.c:39
avc_cache::scontext
char * scontext
Definition uavc.c:33
avc_cache::tcontext
char * tcontext
Definition uavc.c:34
avc_cache::tcontext_is_valid
bool tcontext_is_valid
Definition uavc.c:43
avc_cache::permissive
bool permissive
Definition uavc.c:41
sepgsql_avc_check_valid
static bool sepgsql_avc_check_valid(void)
Definition uavc.c:152
sepgsql_avc_unlabeled
static char * sepgsql_avc_unlabeled(void)
Definition uavc.c:170
sepgsql_avc_lookup
static avc_cache * sepgsql_avc_lookup(const char *scontext, const char *tcontext, uint16 tclass)
Definition uavc.c:297

References avc_cache::allowed, avc_cache::auditallow, avc_cache::auditdeny, ereport, errcode(), errmsg(), ERROR, fb(), avc_cache::permissive, avc_cache::scontext, sepgsql_audit_log(), sepgsql_avc_check_valid(), sepgsql_avc_lookup(), SEPGSQL_AVC_NOAUDIT, sepgsql_avc_unlabeled(), sepgsql_get_client_label(), sepgsql_get_debug_audit(), sepgsql_get_mode(), sepgsql_getenforce(), SEPGSQL_MODE_INTERNAL, avc_cache::tclass, avc_cache::tcontext, and avc_cache::tcontext_is_valid.

Referenced by sepgsql_attribute_post_create(), sepgsql_attribute_relabel(), sepgsql_avc_check_perms(), sepgsql_database_post_create(), sepgsql_database_relabel(), sepgsql_fmgr_hook(), sepgsql_proc_post_create(), sepgsql_proc_relabel(), sepgsql_relation_post_create(), sepgsql_relation_relabel(), sepgsql_schema_post_create(), sepgsql_schema_relabel(), and sepgsql_set_client_label().

◆ sepgsql_avc_init()

void sepgsql_avc_init ( void  )
extern

Definition at line 488 of file uavc.c.

489{
490 int rc;
491
492 /*
493 * All the avc stuff shall be allocated in avc_mem_cxt
494 */
495 avc_mem_cxt = AllocSetContextCreate(TopMemoryContext,
496 "userspace access vector cache",
497 ALLOCSET_DEFAULT_SIZES);
498 memset(avc_slots, 0, sizeof(avc_slots));
499 avc_num_caches = 0;
500 avc_lru_hint = 0;
501 avc_threshold = AVC_DEF_THRESHOLD;
502
503 /*
504 * SELinux allows to mmap(2) its kernel status page in read-only mode to
505 * inform userspace applications its status updating (such as policy
506 * reloading) without system-call invocations. This feature is only
507 * supported in Linux-2.6.38 or later, however, libselinux provides a
508 * fallback mode to know its status using netlink sockets.
509 */
510 rc = selinux_status_open(1);
511 if (rc < 0)
512 ereport(ERROR,
513 (errcode(ERRCODE_INTERNAL_ERROR),
514 errmsg("SELinux: could not open selinux status : %m")));
515 else if (rc > 0)
516 ereport(LOG,
517 (errmsg("SELinux: kernel status page uses fallback mode")));
518
519 /* Arrange to close selinux status page on process exit. */
520 on_proc_exit(sepgsql_avc_exit, 0);
521}
on_proc_exit
void on_proc_exit(pg_on_exit_callback function, Datum arg)
Definition ipc.c:316
TopMemoryContext
MemoryContext TopMemoryContext
Definition mcxt.c:166
AllocSetContextCreate
#define AllocSetContextCreate
Definition memutils.h:129
ALLOCSET_DEFAULT_SIZES
#define ALLOCSET_DEFAULT_SIZES
Definition memutils.h:160
avc_lru_hint
static int avc_lru_hint
Definition uavc.c:59
avc_threshold
static int avc_threshold
Definition uavc.c:60
avc_mem_cxt
static MemoryContext avc_mem_cxt
Definition uavc.c:56
sepgsql_avc_exit
static void sepgsql_avc_exit(int code, Datum arg)
Definition uavc.c:477
avc_slots
static List * avc_slots[AVC_NUM_SLOTS]
Definition uavc.c:57
avc_num_caches
static int avc_num_caches
Definition uavc.c:58
AVC_DEF_THRESHOLD
#define AVC_DEF_THRESHOLD
Definition uavc.c:54

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate, AVC_DEF_THRESHOLD, avc_lru_hint, avc_mem_cxt, avc_num_caches, avc_slots, avc_threshold, ereport, errcode(), errmsg(), ERROR, fb(), LOG, on_proc_exit(), sepgsql_avc_exit(), and TopMemoryContext.

Referenced by _PG_init().

◆ sepgsql_avc_trusted_proc()

char * sepgsql_avc_trusted_proc ( Oid  functionId)
extern

Definition at line 445 of file uavc.c.

446{
447 char *scontext = sepgsql_get_client_label();
448 char *tcontext;
449 ObjectAddress tobject;
450 avc_cache *cache;
451
452 tobject.classId = ProcedureRelationId;
453 tobject.objectId = functionId;
454 tobject.objectSubId = 0;
455 tcontext = GetSecurityLabel(&tobject, SEPGSQL_LABEL_TAG);
456
457 sepgsql_avc_check_valid();
458 do
459 {
460 if (tcontext)
461 cache = sepgsql_avc_lookup(scontext, tcontext,
462 SEPG_CLASS_DB_PROCEDURE);
463 else
464 cache = sepgsql_avc_lookup(scontext, sepgsql_avc_unlabeled(),
465 SEPG_CLASS_DB_PROCEDURE);
466 } while (!sepgsql_avc_check_valid());
467
468 return cache->ncontext;
469}
SEPG_CLASS_DB_PROCEDURE
#define SEPG_CLASS_DB_PROCEDURE
Definition sepgsql.h:48
avc_cache::ncontext
char * ncontext
Definition uavc.c:45

References fb(), GetSecurityLabel(), avc_cache::ncontext, SEPG_CLASS_DB_PROCEDURE, sepgsql_avc_check_valid(), sepgsql_avc_lookup(), sepgsql_avc_unlabeled(), sepgsql_get_client_label(), and SEPGSQL_LABEL_TAG.

Referenced by sepgsql_fmgr_hook(), and sepgsql_needs_fmgr_hook().

◆ sepgsql_compute_avd()

void sepgsql_compute_avd ( const char *  scontext,
const char *  tcontext,
uint16  tclass,
struct av_decision *  avd 
)
extern

Definition at line 739 of file selinux.c.

743{
744 const char *tclass_name;
745 security_class_t tclass_ex;
746 struct av_decision avd_ex;
747 int i,
748 deny_unknown = security_deny_unknown();
749
750 /* Get external code of the object class */
751 Assert(tclass < SEPG_CLASS_MAX);
752 Assert(tclass == selinux_catalog[tclass].class_code);
753
754 tclass_name = selinux_catalog[tclass].class_name;
755 tclass_ex = string_to_security_class(tclass_name);
756
757 if (tclass_ex == 0)
758 {
759 /*
760 * If the current security policy does not support permissions
761 * corresponding to database objects, we fill up them with dummy data.
762 * If security_deny_unknown() returns positive value, undefined
763 * permissions should be denied. Otherwise, allowed
764 */
765 avd->allowed = (security_deny_unknown() > 0 ? 0 : ~0);
766 avd->auditallow = 0U;
767 avd->auditdeny = ~0U;
768 avd->flags = 0;
769
770 return;
771 }
772
773 /*
774 * Ask SELinux what is allowed set of permissions on a pair of the
775 * security contexts and the given object class.
776 */
777 if (security_compute_av_flags_raw(scontext,
778 tcontext,
779 tclass_ex, 0, &avd_ex) < 0)
780 ereport(ERROR,
781 (errcode(ERRCODE_INTERNAL_ERROR),
782 errmsg("SELinux could not compute av_decision: "
783 "scontext=%s tcontext=%s tclass=%s: %m",
784 scontext, tcontext, tclass_name)));
785
786 /*
787 * SELinux returns its access control decision as a set of permissions
788 * represented in external code which depends on run-time environment. So,
789 * we need to translate it to the internal representation before returning
790 * results for the caller.
791 */
792 memset(avd, 0, sizeof(struct av_decision));
793
794 for (i = 0; selinux_catalog[tclass].av[i].av_name; i++)
795 {
796 access_vector_t av_code_ex;
797 const char *av_name = selinux_catalog[tclass].av[i].av_name;
798 uint32 av_code = selinux_catalog[tclass].av[i].av_code;
799
800 av_code_ex = string_to_av_perm(tclass_ex, av_name);
801 if (av_code_ex == 0)
802 {
803 /* fill up undefined permissions */
804 if (!deny_unknown)
805 avd->allowed |= av_code;
806 avd->auditdeny |= av_code;
807
808 continue;
809 }
810
811 if (avd_ex.allowed & av_code_ex)
812 avd->allowed |= av_code;
813 if (avd_ex.auditallow & av_code_ex)
814 avd->auditallow |= av_code;
815 if (avd_ex.auditdeny & av_code_ex)
816 avd->auditdeny |= av_code;
817 }
818}
class_code
uint16 class_code
Definition selinux.c:33
av_code
uint32 av_code
Definition selinux.c:37

References Assert, av_code, av_name, class_code, ereport, errcode(), errmsg(), ERROR, fb(), i, selinux_catalog, and SEPG_CLASS_MAX.

Referenced by sepgsql_avc_compute().

◆ sepgsql_compute_create()

char * sepgsql_compute_create ( const char *  scontext,
const char *  tcontext,
uint16  tclass,
const char *  objname 
)
extern

Definition at line 842 of file selinux.c.

846{
847 char *ncontext;
848 security_class_t tclass_ex;
849 const char *tclass_name;
850 char *result;
851
852 /* Get external code of the object class */
853 Assert(tclass < SEPG_CLASS_MAX);
854
855 tclass_name = selinux_catalog[tclass].class_name;
856 tclass_ex = string_to_security_class(tclass_name);
857
858 /*
859 * Ask SELinux what is the default context for the given object class on a
860 * pair of security contexts
861 */
862 if (security_compute_create_name_raw(scontext,
863 tcontext,
864 tclass_ex,
865 objname,
866 &ncontext) < 0)
867 ereport(ERROR,
868 (errcode(ERRCODE_INTERNAL_ERROR),
869 errmsg("SELinux could not compute a new context: "
870 "scontext=%s tcontext=%s tclass=%s: %m",
871 scontext, tcontext, tclass_name)));
872
873 /*
874 * libselinux returns malloc()'ed string, so we need to copy it on the
875 * palloc()'ed region.
876 */
877 PG_TRY();
878 {
879 result = pstrdup(ncontext);
880 }
881 PG_FINALLY();
882 {
883 freecon(ncontext);
884 }
885 PG_END_TRY();
886
887 return result;
888}
PG_TRY
#define PG_TRY(...)
Definition elog.h:372
PG_END_TRY
#define PG_END_TRY(...)
Definition elog.h:397
PG_FINALLY
#define PG_FINALLY(...)
Definition elog.h:389
pstrdup
char * pstrdup(const char *in)
Definition mcxt.c:1781

References Assert, ereport, errcode(), errmsg(), ERROR, fb(), PG_END_TRY, PG_FINALLY, PG_TRY, pstrdup(), selinux_catalog, and SEPG_CLASS_MAX.

Referenced by sepgsql_attribute_post_create(), sepgsql_avc_compute(), sepgsql_database_post_create(), sepgsql_proc_post_create(), sepgsql_relation_post_create(), and sepgsql_schema_post_create().

◆ sepgsql_database_drop()

void sepgsql_database_drop ( Oid  databaseId)
extern

Definition at line 132 of file database.c.

133{
134 ObjectAddress object;
135 char *audit_name;
136
137 /*
138 * check db_database:{drop} permission
139 */
140 object.classId = DatabaseRelationId;
141 object.objectId = databaseId;
142 object.objectSubId = 0;
143 audit_name = getObjectIdentity(&object, false);
144
145 sepgsql_avc_check_perms(&object,
146 SEPG_CLASS_DB_DATABASE,
147 SEPG_DB_DATABASE__DROP,
148 audit_name,
149 true);
150 pfree(audit_name);
151}
SEPG_CLASS_DB_DATABASE
#define SEPG_CLASS_DB_DATABASE
Definition sepgsql.h:44
SEPG_DB_DATABASE__DROP
#define SEPG_DB_DATABASE__DROP
Definition sepgsql.h:119

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_DATABASE, SEPG_DB_DATABASE__DROP, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_database_post_create()

void sepgsql_database_post_create ( Oid  databaseId,
const char *  dtemplate 
)
extern

Definition at line 32 of file database.c.

33{
34 Relation rel;
35 ScanKeyData skey;
36 SysScanDesc sscan;
37 HeapTuple tuple;
38 char *tcontext;
39 char *ncontext;
40 ObjectAddress object;
41 Form_pg_database datForm;
42 StringInfoData audit_name;
43
44 /*
45 * Oid of the source database is not saved in pg_database catalog, so we
46 * collect its identifier using contextual information. If NULL, its
47 * default is "template1" according to createdb().
48 */
49 if (!dtemplate)
50 dtemplate = "template1";
51
52 object.classId = DatabaseRelationId;
53 object.objectId = get_database_oid(dtemplate, false);
54 object.objectSubId = 0;
55
56 tcontext = sepgsql_get_label(object.classId,
57 object.objectId,
58 object.objectSubId);
59
60 /*
61 * check db_database:{getattr} permission
62 */
63 initStringInfo(&audit_name);
64 appendStringInfoString(&audit_name, quote_identifier(dtemplate));
65 sepgsql_avc_check_perms_label(tcontext,
66 SEPG_CLASS_DB_DATABASE,
67 SEPG_DB_DATABASE__GETATTR,
68 audit_name.data,
69 true);
70
71 /*
72 * Compute a default security label of the newly created database based on
73 * a pair of security label of client and source database.
74 *
75 * XXX - upcoming version of libselinux supports to take object name to
76 * handle special treatment on default security label.
77 */
78 rel = table_open(DatabaseRelationId, AccessShareLock);
79
80 ScanKeyInit(&skey,
81 Anum_pg_database_oid,
82 BTEqualStrategyNumber, F_OIDEQ,
83 ObjectIdGetDatum(databaseId));
84
85 sscan = systable_beginscan(rel, DatabaseOidIndexId, true,
86 SnapshotSelf, 1, &skey);
87 tuple = systable_getnext(sscan);
88 if (!HeapTupleIsValid(tuple))
89 elog(ERROR, "could not find tuple for database %u", databaseId);
90
91 datForm = (Form_pg_database) GETSTRUCT(tuple);
92
93 ncontext = sepgsql_compute_create(sepgsql_get_client_label(),
94 tcontext,
95 SEPG_CLASS_DB_DATABASE,
96 NameStr(datForm->datname));
97
98 /*
99 * check db_database:{create} permission
100 */
101 resetStringInfo(&audit_name);
102 appendStringInfoString(&audit_name,
103 quote_identifier(NameStr(datForm->datname)));
104 sepgsql_avc_check_perms_label(ncontext,
105 SEPG_CLASS_DB_DATABASE,
106 SEPG_DB_DATABASE__CREATE,
107 audit_name.data,
108 true);
109
110 systable_endscan(sscan);
111 table_close(rel, AccessShareLock);
112
113 /*
114 * Assign the default security label on the new database
115 */
116 object.classId = DatabaseRelationId;
117 object.objectId = databaseId;
118 object.objectSubId = 0;
119
120 SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, ncontext);
121
122 pfree(ncontext);
123 pfree(tcontext);
124}
get_database_oid
Oid get_database_oid(const char *dbname, bool missing_ok)
Definition dbcommands.c:3168
Form_pg_database
FormData_pg_database * Form_pg_database
Definition pg_database.h:96
SEPG_DB_DATABASE__CREATE
#define SEPG_DB_DATABASE__CREATE
Definition sepgsql.h:118
SEPG_DB_DATABASE__GETATTR
#define SEPG_DB_DATABASE__GETATTR
Definition sepgsql.h:120
resetStringInfo
void resetStringInfo(StringInfo str)
Definition stringinfo.c:126

References AccessShareLock, appendStringInfoString(), BTEqualStrategyNumber, elog, ERROR, fb(), get_database_oid(), GETSTRUCT(), HeapTupleIsValid, initStringInfo(), NameStr, ObjectIdGetDatum(), pfree(), quote_identifier(), resetStringInfo(), ScanKeyInit(), SEPG_CLASS_DB_DATABASE, SEPG_DB_DATABASE__CREATE, SEPG_DB_DATABASE__GETATTR, sepgsql_avc_check_perms_label(), sepgsql_compute_create(), sepgsql_get_client_label(), sepgsql_get_label(), SEPGSQL_LABEL_TAG, SetSecurityLabel(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access().

◆ sepgsql_database_relabel()

void sepgsql_database_relabel ( Oid  databaseId,
const char *  seclabel 
)
extern

Definition at line 186 of file database.c.

187{
188 ObjectAddress object;
189 char *audit_name;
190
191 object.classId = DatabaseRelationId;
192 object.objectId = databaseId;
193 object.objectSubId = 0;
194 audit_name = getObjectIdentity(&object, false);
195
196 /*
197 * check db_database:{setattr relabelfrom} permission
198 */
199 sepgsql_avc_check_perms(&object,
200 SEPG_CLASS_DB_DATABASE,
201 SEPG_DB_DATABASE__SETATTR |
202 SEPG_DB_DATABASE__RELABELFROM,
203 audit_name,
204 true);
205
206 /*
207 * check db_database:{relabelto} permission
208 */
209 sepgsql_avc_check_perms_label(seclabel,
210 SEPG_CLASS_DB_DATABASE,
211 SEPG_DB_DATABASE__RELABELTO,
212 audit_name,
213 true);
214 pfree(audit_name);
215}
SEPG_DB_DATABASE__SETATTR
#define SEPG_DB_DATABASE__SETATTR
Definition sepgsql.h:121
SEPG_DB_DATABASE__RELABELTO
#define SEPG_DB_DATABASE__RELABELTO
Definition sepgsql.h:123
SEPG_DB_DATABASE__RELABELFROM
#define SEPG_DB_DATABASE__RELABELFROM
Definition sepgsql.h:122

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_DATABASE, SEPG_DB_DATABASE__RELABELFROM, SEPG_DB_DATABASE__RELABELTO, SEPG_DB_DATABASE__SETATTR, sepgsql_avc_check_perms(), and sepgsql_avc_check_perms_label().

Referenced by sepgsql_object_relabel().

◆ sepgsql_database_setattr()

void sepgsql_database_setattr ( Oid  databaseId)
extern

Definition at line 159 of file database.c.

160{
161 ObjectAddress object;
162 char *audit_name;
163
164 /*
165 * check db_database:{setattr} permission
166 */
167 object.classId = DatabaseRelationId;
168 object.objectId = databaseId;
169 object.objectSubId = 0;
170 audit_name = getObjectIdentity(&object, false);
171
172 sepgsql_avc_check_perms(&object,
173 SEPG_CLASS_DB_DATABASE,
174 SEPG_DB_DATABASE__SETATTR,
175 audit_name,
176 true);
177 pfree(audit_name);
178}

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_DATABASE, SEPG_DB_DATABASE__SETATTR, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_dml_privileges()

bool sepgsql_dml_privileges ( List *  rangeTabls,
List *  rteperminfos,
bool  abort_on_violation 
)
extern

Definition at line 282 of file dml.c.

284{
285 ListCell *lr;
286
287 foreach(lr, rteperminfos)
288 {
289 RTEPermissionInfo *perminfo = lfirst_node(RTEPermissionInfo, lr);
290 uint32 required = 0;
291 List *tableIds;
292 ListCell *li;
293
294 /*
295 * Find out required permissions
296 */
297 if (perminfo->requiredPerms & ACL_SELECT)
298 required |= SEPG_DB_TABLE__SELECT;
299 if (perminfo->requiredPerms & ACL_INSERT)
300 required |= SEPG_DB_TABLE__INSERT;
301 if (perminfo->requiredPerms & ACL_UPDATE)
302 {
303 if (!bms_is_empty(perminfo->updatedCols))
304 required |= SEPG_DB_TABLE__UPDATE;
305 else
306 required |= SEPG_DB_TABLE__LOCK;
307 }
308 if (perminfo->requiredPerms & ACL_DELETE)
309 required |= SEPG_DB_TABLE__DELETE;
310
311 /*
312 * Skip, if nothing to be checked
313 */
314 if (required == 0)
315 continue;
316
317 /*
318 * If this RangeTblEntry is also supposed to reference inherited
319 * tables, we need to check security label of the child tables. So, we
320 * expand rte->relid into list of OIDs of inheritance hierarchy, then
321 * checker routine will be invoked for each relations.
322 */
323 if (!perminfo->inh)
324 tableIds = list_make1_oid(perminfo->relid);
325 else
326 tableIds = find_all_inheritors(perminfo->relid, NoLock, NULL);
327
328 foreach(li, tableIds)
329 {
330 Oid tableOid = lfirst_oid(li);
331 Bitmapset *selectedCols;
332 Bitmapset *insertedCols;
333 Bitmapset *updatedCols;
334
335 /*
336 * child table has different attribute numbers, so we need to fix
337 * up them.
338 */
339 selectedCols = fixup_inherited_columns(perminfo->relid, tableOid,
340 perminfo->selectedCols);
341 insertedCols = fixup_inherited_columns(perminfo->relid, tableOid,
342 perminfo->insertedCols);
343 updatedCols = fixup_inherited_columns(perminfo->relid, tableOid,
344 perminfo->updatedCols);
345
346 /*
347 * check permissions on individual tables
348 */
349 if (!check_relation_privileges(tableOid,
350 selectedCols,
351 insertedCols,
352 updatedCols,
353 required, abort_on_violation))
354 return false;
355 }
356 list_free(tableIds);
357 }
358 return true;
359}
bms_is_empty
#define bms_is_empty(a)
Definition bitmapset.h:118
check_relation_privileges
static bool check_relation_privileges(Oid relOid, Bitmapset *selected, Bitmapset *inserted, Bitmapset *updated, uint32 required, bool abort_on_violation)
Definition dml.c:142
fixup_inherited_columns
static Bitmapset * fixup_inherited_columns(Oid parentId, Oid childId, Bitmapset *columns)
Definition dml.c:93
list_free
void list_free(List *list)
Definition list.c:1546
NoLock
#define NoLock
Definition lockdefs.h:34
ACL_DELETE
#define ACL_DELETE
Definition parsenodes.h:79
ACL_INSERT
#define ACL_INSERT
Definition parsenodes.h:76
ACL_UPDATE
#define ACL_UPDATE
Definition parsenodes.h:78
ACL_SELECT
#define ACL_SELECT
Definition parsenodes.h:77
find_all_inheritors
List * find_all_inheritors(Oid parentrelId, LOCKMODE lockmode, List **numparents)
Definition pg_inherits.c:255
lfirst_node
#define lfirst_node(type, lc)
Definition pg_list.h:176
list_make1_oid
#define list_make1_oid(x1)
Definition pg_list.h:242
lfirst_oid
#define lfirst_oid(lc)
Definition pg_list.h:174
Oid
unsigned int Oid
Definition postgres_ext.h:32
SEPG_DB_TABLE__DELETE
#define SEPG_DB_TABLE__DELETE
Definition sepgsql.h:146
SEPG_DB_TABLE__LOCK
#define SEPG_DB_TABLE__LOCK
Definition sepgsql.h:147
SEPG_DB_TABLE__INSERT
#define SEPG_DB_TABLE__INSERT
Definition sepgsql.h:145
SEPG_DB_TABLE__UPDATE
#define SEPG_DB_TABLE__UPDATE
Definition sepgsql.h:144
SEPG_DB_TABLE__SELECT
#define SEPG_DB_TABLE__SELECT
Definition sepgsql.h:143
List
Definition pg_list.h:54

References ACL_DELETE, ACL_INSERT, ACL_SELECT, ACL_UPDATE, bms_is_empty, check_relation_privileges(), fb(), find_all_inheritors(), fixup_inherited_columns(), lfirst_node, lfirst_oid, list_free(), list_make1_oid, NoLock, SEPG_DB_TABLE__DELETE, SEPG_DB_TABLE__INSERT, SEPG_DB_TABLE__LOCK, SEPG_DB_TABLE__SELECT, and SEPG_DB_TABLE__UPDATE.

Referenced by sepgsql_exec_check_perms().

◆ sepgsql_get_client_label()

char * sepgsql_get_client_label ( void  )
extern

Definition at line 79 of file label.c.

80{
81 /* trusted procedure client label override */
82 if (client_label_func)
83 return client_label_func;
84
85 /* uncommitted sepgsql_setcon() value */
86 if (client_label_pending)
87 {
88 pending_label *plabel = llast(client_label_pending);
89
90 if (plabel->label)
91 return plabel->label;
92 }
93 else if (client_label_committed)
94 return client_label_committed; /* set by sepgsql_setcon() committed */
95
96 /* default label */
97 Assert(client_label_peer != NULL);
98 return client_label_peer;
99}
client_label_committed
static char * client_label_committed
Definition label.c:61
client_label_peer
static char * client_label_peer
Definition label.c:58
client_label_pending
static List * client_label_pending
Definition label.c:59
client_label_func
static char * client_label_func
Definition label.c:63
llast
#define llast(l)
Definition pg_list.h:198
pending_label
Definition label.c:66

References Assert, client_label_committed, client_label_func, client_label_peer, client_label_pending, fb(), and llast.

Referenced by sepgsql_attribute_post_create(), sepgsql_avc_check_perms_label(), sepgsql_avc_trusted_proc(), sepgsql_database_post_create(), sepgsql_getcon(), sepgsql_proc_post_create(), sepgsql_relation_post_create(), sepgsql_schema_post_create(), and sepgsql_set_client_label().

◆ sepgsql_get_debug_audit()

bool sepgsql_get_debug_audit ( void  )
extern

Definition at line 77 of file hooks.c.

78{
79 return sepgsql_debug_audit;
80}
sepgsql_debug_audit
static bool sepgsql_debug_audit
Definition hooks.c:74

References sepgsql_debug_audit.

Referenced by sepgsql_avc_check_perms_label().

◆ sepgsql_get_label()

char * sepgsql_get_label ( Oid  classId,
Oid  objectId,
int32  subId 
)
extern

Definition at line 444 of file label.c.

445{
446 ObjectAddress object;
447 char *label;
448
449 object.classId = classId;
450 object.objectId = objectId;
451 object.objectSubId = subId;
452
453 label = GetSecurityLabel(&object, SEPGSQL_LABEL_TAG);
454 if (!label || security_check_context_raw(label))
455 {
456 char *unlabeled;
457
458 if (security_get_initial_context_raw("unlabeled", &unlabeled) < 0)
459 ereport(ERROR,
460 (errcode(ERRCODE_INTERNAL_ERROR),
461 errmsg("SELinux: failed to get initial security label: %m")));
462 PG_TRY();
463 {
464 label = pstrdup(unlabeled);
465 }
466 PG_FINALLY();
467 {
468 freecon(unlabeled);
469 }
470 PG_END_TRY();
471 }
472 return label;
473}
label
static char * label
Definition pg_basebackup.c:135

References ObjectAddress::classId, ereport, errcode(), errmsg(), ERROR, fb(), GetSecurityLabel(), label, PG_END_TRY, PG_FINALLY, PG_TRY, pstrdup(), and SEPGSQL_LABEL_TAG.

Referenced by sepgsql_attribute_post_create(), sepgsql_database_post_create(), sepgsql_proc_post_create(), sepgsql_relation_post_create(), and sepgsql_schema_post_create().

◆ sepgsql_get_mode()

int sepgsql_get_mode ( void  )
extern

Definition at line 625 of file selinux.c.

626{
627 return sepgsql_mode;
628}
sepgsql_mode
static int sepgsql_mode
Definition selinux.c:610

References sepgsql_mode.

Referenced by sepgsql_avc_check_perms_label().

◆ sepgsql_get_permissive()

bool sepgsql_get_permissive ( void  )
extern

Definition at line 66 of file hooks.c.

67{
68 return sepgsql_permissive;
69}
sepgsql_permissive
static bool sepgsql_permissive
Definition hooks.c:63

References sepgsql_permissive.

Referenced by sepgsql_client_auth().

◆ sepgsql_getenforce()

bool sepgsql_getenforce ( void  )
extern

Definition at line 651 of file selinux.c.

652{
653 if (sepgsql_mode == SEPGSQL_MODE_DEFAULT &&
654 selinux_status_getenforce() > 0)
655 return true;
656
657 return false;
658}
SEPGSQL_MODE_DEFAULT
#define SEPGSQL_MODE_DEFAULT
Definition sepgsql.h:28

References fb(), sepgsql_mode, and SEPGSQL_MODE_DEFAULT.

Referenced by check_relation_privileges(), sepgsql_avc_check_perms_label(), and sepgsql_utility_command().

◆ sepgsql_init_client_label()

void sepgsql_init_client_label ( void  )
extern

Definition at line 403 of file label.c.

404{
405 /*
406 * Set up dummy client label.
407 *
408 * XXX - note that PostgreSQL launches background worker process like
409 * autovacuum without authentication steps. So, we initialize sepgsql_mode
410 * with SEPGSQL_MODE_INTERNAL, and client_label with the security context
411 * of server process. Later, it also launches background of user session.
412 * In this case, the process is always hooked on post-authentication, and
413 * we can initialize the sepgsql_mode and client_label correctly.
414 */
415 if (getcon_raw(&client_label_peer) < 0)
416 ereport(ERROR,
417 (errcode(ERRCODE_INTERNAL_ERROR),
418 errmsg("SELinux: failed to get server security label: %m")));
419
420 /* Client authentication hook */
421 next_client_auth_hook = ClientAuthentication_hook;
422 ClientAuthentication_hook = sepgsql_client_auth;
423
424 /* Trusted procedure hooks */
425 next_needs_fmgr_hook = needs_fmgr_hook;
426 needs_fmgr_hook = sepgsql_needs_fmgr_hook;
427
428 next_fmgr_hook = fmgr_hook;
429 fmgr_hook = sepgsql_fmgr_hook;
430
431 /* Transaction/Sub-transaction callbacks */
432 RegisterXactCallback(sepgsql_xact_callback, NULL);
433 RegisterSubXactCallback(sepgsql_subxact_callback, NULL);
434}
ClientAuthentication_hook
ClientAuthentication_hook_type ClientAuthentication_hook
Definition auth.c:223
needs_fmgr_hook
PGDLLIMPORT needs_fmgr_hook_type needs_fmgr_hook
Definition fmgr.c:40
fmgr_hook
PGDLLIMPORT fmgr_hook_type fmgr_hook
Definition fmgr.c:41
next_fmgr_hook
static fmgr_hook_type next_fmgr_hook
Definition label.c:43
sepgsql_fmgr_hook
static void sepgsql_fmgr_hook(FmgrHookEventType event, FmgrInfo *flinfo, Datum *private)
Definition label.c:310
next_needs_fmgr_hook
static needs_fmgr_hook_type next_needs_fmgr_hook
Definition label.c:42
sepgsql_subxact_callback
static void sepgsql_subxact_callback(SubXactEvent event, SubTransactionId mySubid, SubTransactionId parentSubid, void *arg)
Definition label.c:203
sepgsql_client_auth
static void sepgsql_client_auth(Port *port, int status)
Definition label.c:229
sepgsql_xact_callback
static void sepgsql_xact_callback(XactEvent event, void *arg)
Definition label.c:164
next_client_auth_hook
static ClientAuthentication_hook_type next_client_auth_hook
Definition label.c:41
sepgsql_needs_fmgr_hook
static bool sepgsql_needs_fmgr_hook(Oid functionId)
Definition label.c:267
RegisterXactCallback
void RegisterXactCallback(XactCallback callback, void *arg)
Definition xact.c:3826
RegisterSubXactCallback
void RegisterSubXactCallback(SubXactCallback callback, void *arg)
Definition xact.c:3886

References client_label_peer, ClientAuthentication_hook, ereport, errcode(), errmsg(), ERROR, fb(), fmgr_hook, needs_fmgr_hook, next_client_auth_hook, next_fmgr_hook, next_needs_fmgr_hook, RegisterSubXactCallback(), RegisterXactCallback(), sepgsql_client_auth(), sepgsql_fmgr_hook(), sepgsql_needs_fmgr_hook(), sepgsql_subxact_callback(), and sepgsql_xact_callback().

Referenced by _PG_init().

◆ sepgsql_is_enabled()

bool sepgsql_is_enabled ( void  )
extern

Definition at line 616 of file selinux.c.

617{
618 return (sepgsql_mode != SEPGSQL_MODE_DISABLED);
619}
SEPGSQL_MODE_DISABLED
#define SEPGSQL_MODE_DISABLED
Definition sepgsql.h:31

References sepgsql_mode, and SEPGSQL_MODE_DISABLED.

Referenced by sepgsql_getcon(), sepgsql_mcstrans_in(), sepgsql_mcstrans_out(), and sepgsql_restorecon().

◆ sepgsql_object_relabel()

void sepgsql_object_relabel ( const ObjectAddress *  object,
const char *  seclabel 
)
extern

Definition at line 481 of file label.c.

482{
483 /*
484 * validate format of the supplied security label, if it is security
485 * context of selinux.
486 */
487 if (seclabel &&
488 security_check_context_raw(seclabel) < 0)
489 ereport(ERROR,
490 (errcode(ERRCODE_INVALID_NAME),
491 errmsg("SELinux: invalid security label: \"%s\"", seclabel)));
492
493 /*
494 * Do actual permission checks for each object classes
495 */
496 switch (object->classId)
497 {
498 case DatabaseRelationId:
499 sepgsql_database_relabel(object->objectId, seclabel);
500 break;
501
502 case NamespaceRelationId:
503 sepgsql_schema_relabel(object->objectId, seclabel);
504 break;
505
506 case RelationRelationId:
507 if (object->objectSubId == 0)
508 sepgsql_relation_relabel(object->objectId,
509 seclabel);
510 else
511 sepgsql_attribute_relabel(object->objectId,
512 object->objectSubId,
513 seclabel);
514 break;
515
516 case ProcedureRelationId:
517 sepgsql_proc_relabel(object->objectId, seclabel);
518 break;
519
520 default:
521 ereport(ERROR,
522 (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
523 errmsg("sepgsql provider does not support labels on %s",
524 getObjectTypeDescription(object, false))));
525 break;
526 }
527}
sepgsql_proc_relabel
void sepgsql_proc_relabel(Oid functionId, const char *seclabel)
Definition proc.c:198
sepgsql_attribute_relabel
void sepgsql_attribute_relabel(Oid relOid, AttrNumber attnum, const char *seclabel)
Definition relation.c:165
sepgsql_relation_relabel
void sepgsql_relation_relabel(Oid relOid, const char *seclabel)
Definition relation.c:564
sepgsql_database_relabel
void sepgsql_database_relabel(Oid databaseId, const char *seclabel)
Definition database.c:186
getObjectTypeDescription
char * getObjectTypeDescription(const ObjectAddress *object, bool missing_ok)
Definition objectaddress.c:4496
sepgsql_schema_relabel
void sepgsql_schema_relabel(Oid namespaceId, const char *seclabel)
Definition schema.c:142

References ObjectAddress::classId, ereport, errcode(), errmsg(), ERROR, fb(), getObjectTypeDescription(), ObjectAddress::objectId, ObjectAddress::objectSubId, sepgsql_attribute_relabel(), sepgsql_database_relabel(), sepgsql_proc_relabel(), sepgsql_relation_relabel(), and sepgsql_schema_relabel().

Referenced by _PG_init(), and exec_object_restorecon().

◆ sepgsql_proc_drop()

void sepgsql_proc_drop ( Oid  functionId)
extern

Definition at line 155 of file proc.c.

156{
157 ObjectAddress object;
158 char *audit_name;
159
160 /*
161 * check db_schema:{remove_name} permission
162 */
163 object.classId = NamespaceRelationId;
164 object.objectId = get_func_namespace(functionId);
165 object.objectSubId = 0;
166 audit_name = getObjectIdentity(&object, false);
167
168 sepgsql_avc_check_perms(&object,
169 SEPG_CLASS_DB_SCHEMA,
170 SEPG_DB_SCHEMA__REMOVE_NAME,
171 audit_name,
172 true);
173 pfree(audit_name);
174
175 /*
176 * check db_procedure:{drop} permission
177 */
178 object.classId = ProcedureRelationId;
179 object.objectId = functionId;
180 object.objectSubId = 0;
181 audit_name = getObjectIdentity(&object, false);
182
183 sepgsql_avc_check_perms(&object,
184 SEPG_CLASS_DB_PROCEDURE,
185 SEPG_DB_PROCEDURE__DROP,
186 audit_name,
187 true);
188 pfree(audit_name);
189}
get_func_namespace
Oid get_func_namespace(Oid funcid)
Definition lsyscache.c:1782
SEPG_CLASS_DB_SCHEMA
#define SEPG_CLASS_DB_SCHEMA
Definition sepgsql.h:45
SEPG_DB_SCHEMA__REMOVE_NAME
#define SEPG_DB_SCHEMA__REMOVE_NAME
Definition sepgsql.h:135
SEPG_DB_PROCEDURE__DROP
#define SEPG_DB_PROCEDURE__DROP
Definition sepgsql.h:161

References ObjectAddress::classId, fb(), get_func_namespace(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_PROCEDURE, SEPG_CLASS_DB_SCHEMA, SEPG_DB_PROCEDURE__DROP, SEPG_DB_SCHEMA__REMOVE_NAME, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_proc_execute()

void sepgsql_proc_execute ( Oid  functionId)
extern

Definition at line 315 of file proc.c.

316{
317 ObjectAddress object;
318 char *audit_name;
319
320 /*
321 * check db_procedure:{execute} permission
322 */
323 object.classId = ProcedureRelationId;
324 object.objectId = functionId;
325 object.objectSubId = 0;
326 audit_name = getObjectIdentity(&object, false);
327 sepgsql_avc_check_perms(&object,
328 SEPG_CLASS_DB_PROCEDURE,
329 SEPG_DB_PROCEDURE__EXECUTE,
330 audit_name,
331 true);
332 pfree(audit_name);
333}
SEPG_DB_PROCEDURE__EXECUTE
#define SEPG_DB_PROCEDURE__EXECUTE
Definition sepgsql.h:166

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_PROCEDURE, SEPG_DB_PROCEDURE__EXECUTE, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_proc_post_create()

void sepgsql_proc_post_create ( Oid  functionId)
extern

Definition at line 37 of file proc.c.

38{
39 Relation rel;
40 ScanKeyData skey;
41 SysScanDesc sscan;
42 HeapTuple tuple;
43 char *nsp_name;
44 char *scontext;
45 char *tcontext;
46 char *ncontext;
47 uint32 required;
48 int i;
49 StringInfoData audit_name;
50 ObjectAddress object;
51 Form_pg_proc proForm;
52
53 /*
54 * Fetch namespace of the new procedure. Because pg_proc entry is not
55 * visible right now, we need to scan the catalog using SnapshotSelf.
56 */
57 rel = table_open(ProcedureRelationId, AccessShareLock);
58
59 ScanKeyInit(&skey,
60 Anum_pg_proc_oid,
61 BTEqualStrategyNumber, F_OIDEQ,
62 ObjectIdGetDatum(functionId));
63
64 sscan = systable_beginscan(rel, ProcedureOidIndexId, true,
65 SnapshotSelf, 1, &skey);
66
67 tuple = systable_getnext(sscan);
68 if (!HeapTupleIsValid(tuple))
69 elog(ERROR, "could not find tuple for function %u", functionId);
70
71 proForm = (Form_pg_proc) GETSTRUCT(tuple);
72
73 /*
74 * check db_schema:{add_name} permission of the namespace
75 */
76 object.classId = NamespaceRelationId;
77 object.objectId = proForm->pronamespace;
78 object.objectSubId = 0;
79 sepgsql_avc_check_perms(&object,
80 SEPG_CLASS_DB_SCHEMA,
81 SEPG_DB_SCHEMA__ADD_NAME,
82 getObjectIdentity(&object, false),
83 true);
84
85 /*
86 * XXX - db_language:{implement} also should be checked here
87 */
88
89
90 /*
91 * Compute a default security label when we create a new procedure object
92 * under the specified namespace.
93 */
94 scontext = sepgsql_get_client_label();
95 tcontext = sepgsql_get_label(NamespaceRelationId,
96 proForm->pronamespace, 0);
97 ncontext = sepgsql_compute_create(scontext, tcontext,
98 SEPG_CLASS_DB_PROCEDURE,
99 NameStr(proForm->proname));
100
101 /*
102 * check db_procedure:{create (install)} permission
103 */
104 initStringInfo(&audit_name);
105 nsp_name = get_namespace_name(proForm->pronamespace);
106 appendStringInfo(&audit_name, "%s(",
107 quote_qualified_identifier(nsp_name, NameStr(proForm->proname)));
108 for (i = 0; i < proForm->pronargs; i++)
109 {
110 if (i > 0)
111 appendStringInfoChar(&audit_name, ',');
112
113 object.classId = TypeRelationId;
114 object.objectId = proForm->proargtypes.values[i];
115 object.objectSubId = 0;
116 appendStringInfoString(&audit_name, getObjectIdentity(&object, false));
117 }
118 appendStringInfoChar(&audit_name, ')');
119
120 required = SEPG_DB_PROCEDURE__CREATE;
121 if (proForm->proleakproof)
122 required |= SEPG_DB_PROCEDURE__INSTALL;
123
124 sepgsql_avc_check_perms_label(ncontext,
125 SEPG_CLASS_DB_PROCEDURE,
126 required,
127 audit_name.data,
128 true);
129
130 /*
131 * Assign the default security label on a new procedure
132 */
133 object.classId = ProcedureRelationId;
134 object.objectId = functionId;
135 object.objectSubId = 0;
136 SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, ncontext);
137
138 /*
139 * Cleanup
140 */
141 systable_endscan(sscan);
142 table_close(rel, AccessShareLock);
143
144 pfree(audit_name.data);
145 pfree(tcontext);
146 pfree(ncontext);
147}
get_namespace_name
char * get_namespace_name(Oid nspid)
Definition lsyscache.c:3516
Form_pg_proc
FormData_pg_proc * Form_pg_proc
Definition pg_proc.h:136
quote_qualified_identifier
char * quote_qualified_identifier(const char *qualifier, const char *ident)
Definition ruleutils.c:13144
SEPG_DB_PROCEDURE__CREATE
#define SEPG_DB_PROCEDURE__CREATE
Definition sepgsql.h:160
SEPG_DB_PROCEDURE__INSTALL
#define SEPG_DB_PROCEDURE__INSTALL
Definition sepgsql.h:168
SEPG_DB_SCHEMA__ADD_NAME
#define SEPG_DB_SCHEMA__ADD_NAME
Definition sepgsql.h:134
appendStringInfoChar
void appendStringInfoChar(StringInfo str, char ch)
Definition stringinfo.c:242

References AccessShareLock, appendStringInfo(), appendStringInfoChar(), appendStringInfoString(), BTEqualStrategyNumber, elog, ERROR, fb(), get_namespace_name(), getObjectIdentity(), GETSTRUCT(), HeapTupleIsValid, i, initStringInfo(), NameStr, ObjectIdGetDatum(), pfree(), quote_qualified_identifier(), ScanKeyInit(), SEPG_CLASS_DB_PROCEDURE, SEPG_CLASS_DB_SCHEMA, SEPG_DB_PROCEDURE__CREATE, SEPG_DB_PROCEDURE__INSTALL, SEPG_DB_SCHEMA__ADD_NAME, sepgsql_avc_check_perms(), sepgsql_avc_check_perms_label(), sepgsql_compute_create(), sepgsql_get_client_label(), sepgsql_get_label(), SEPGSQL_LABEL_TAG, SetSecurityLabel(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access().

◆ sepgsql_proc_relabel()

void sepgsql_proc_relabel ( Oid  functionId,
const char *  seclabel 
)
extern

Definition at line 198 of file proc.c.

199{
200 ObjectAddress object;
201 char *audit_name;
202
203 object.classId = ProcedureRelationId;
204 object.objectId = functionId;
205 object.objectSubId = 0;
206 audit_name = getObjectIdentity(&object, false);
207
208 /*
209 * check db_procedure:{setattr relabelfrom} permission
210 */
211 sepgsql_avc_check_perms(&object,
212 SEPG_CLASS_DB_PROCEDURE,
213 SEPG_DB_PROCEDURE__SETATTR |
214 SEPG_DB_PROCEDURE__RELABELFROM,
215 audit_name,
216 true);
217
218 /*
219 * check db_procedure:{relabelto} permission
220 */
221 sepgsql_avc_check_perms_label(seclabel,
222 SEPG_CLASS_DB_PROCEDURE,
223 SEPG_DB_PROCEDURE__RELABELTO,
224 audit_name,
225 true);
226 pfree(audit_name);
227}
SEPG_DB_PROCEDURE__RELABELFROM
#define SEPG_DB_PROCEDURE__RELABELFROM
Definition sepgsql.h:164
SEPG_DB_PROCEDURE__SETATTR
#define SEPG_DB_PROCEDURE__SETATTR
Definition sepgsql.h:163

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_PROCEDURE, SEPG_DB_PROCEDURE__RELABELFROM, SEPG_DB_PROCEDURE__RELABELTO, SEPG_DB_PROCEDURE__SETATTR, sepgsql_avc_check_perms(), and sepgsql_avc_check_perms_label().

Referenced by sepgsql_object_relabel().

◆ sepgsql_proc_setattr()

void sepgsql_proc_setattr ( Oid  functionId)
extern

Definition at line 235 of file proc.c.

236{
237 Relation rel;
238 ScanKeyData skey;
239 SysScanDesc sscan;
240 HeapTuple oldtup;
241 HeapTuple newtup;
242 Form_pg_proc oldform;
243 Form_pg_proc newform;
244 uint32 required;
245 ObjectAddress object;
246 char *audit_name;
247
248 /*
249 * Fetch newer catalog
250 */
251 rel = table_open(ProcedureRelationId, AccessShareLock);
252
253 ScanKeyInit(&skey,
254 Anum_pg_proc_oid,
255 BTEqualStrategyNumber, F_OIDEQ,
256 ObjectIdGetDatum(functionId));
257
258 sscan = systable_beginscan(rel, ProcedureOidIndexId, true,
259 SnapshotSelf, 1, &skey);
260 newtup = systable_getnext(sscan);
261 if (!HeapTupleIsValid(newtup))
262 elog(ERROR, "could not find tuple for function %u", functionId);
263 newform = (Form_pg_proc) GETSTRUCT(newtup);
264
265 /*
266 * Fetch older catalog
267 */
268 oldtup = SearchSysCache1(PROCOID, ObjectIdGetDatum(functionId));
269 if (!HeapTupleIsValid(oldtup))
270 elog(ERROR, "cache lookup failed for function %u", functionId);
271 oldform = (Form_pg_proc) GETSTRUCT(oldtup);
272
273 /*
274 * Does this ALTER command takes operation to namespace?
275 */
276 if (newform->pronamespace != oldform->pronamespace)
277 {
278 sepgsql_schema_remove_name(oldform->pronamespace);
279 sepgsql_schema_add_name(oldform->pronamespace);
280 }
281 if (strcmp(NameStr(newform->proname), NameStr(oldform->proname)) != 0)
282 sepgsql_schema_rename(oldform->pronamespace);
283
284 /*
285 * check db_procedure:{setattr (install)} permission
286 */
287 required = SEPG_DB_PROCEDURE__SETATTR;
288 if (!oldform->proleakproof && newform->proleakproof)
289 required |= SEPG_DB_PROCEDURE__INSTALL;
290
291 object.classId = ProcedureRelationId;
292 object.objectId = functionId;
293 object.objectSubId = 0;
294 audit_name = getObjectIdentity(&object, false);
295
296 sepgsql_avc_check_perms(&object,
297 SEPG_CLASS_DB_PROCEDURE,
298 required,
299 audit_name,
300 true);
301 /* cleanups */
302 pfree(audit_name);
303
304 ReleaseSysCache(oldtup);
305 systable_endscan(sscan);
306 table_close(rel, AccessShareLock);
307}
sepgsql_schema_rename
void sepgsql_schema_rename(Oid namespaceId)
Definition schema.c:229
sepgsql_schema_remove_name
void sepgsql_schema_remove_name(Oid namespaceId)
Definition schema.c:223
sepgsql_schema_add_name
void sepgsql_schema_add_name(Oid namespaceId)
Definition schema.c:217
ReleaseSysCache
void ReleaseSysCache(HeapTuple tuple)
Definition syscache.c:264
SearchSysCache1
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition syscache.c:220

References AccessShareLock, BTEqualStrategyNumber, elog, ERROR, fb(), getObjectIdentity(), GETSTRUCT(), HeapTupleIsValid, NameStr, ObjectIdGetDatum(), pfree(), ReleaseSysCache(), ScanKeyInit(), SearchSysCache1(), SEPG_CLASS_DB_PROCEDURE, SEPG_DB_PROCEDURE__INSTALL, SEPG_DB_PROCEDURE__SETATTR, sepgsql_avc_check_perms(), sepgsql_schema_add_name(), sepgsql_schema_remove_name(), sepgsql_schema_rename(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access().

◆ sepgsql_relation_drop()

void sepgsql_relation_drop ( Oid  relOid)
extern

Definition at line 416 of file relation.c.

417{
418 ObjectAddress object;
419 char *audit_name;
420 uint16_t tclass = 0;
421 char relkind = get_rel_relkind(relOid);
422
423 switch (relkind)
424 {
425 case RELKIND_RELATION:
426 case RELKIND_PARTITIONED_TABLE:
427 tclass = SEPG_CLASS_DB_TABLE;
428 break;
429 case RELKIND_SEQUENCE:
430 tclass = SEPG_CLASS_DB_SEQUENCE;
431 break;
432 case RELKIND_VIEW:
433 tclass = SEPG_CLASS_DB_VIEW;
434 break;
435 case RELKIND_INDEX:
436 /* ignore indexes on toast tables */
437 if (get_rel_namespace(relOid) == PG_TOAST_NAMESPACE)
438 return;
439 /* other indexes are handled specially below; no need for tclass */
440 break;
441 default:
442 /* ignore other relkinds */
443 return;
444 }
445
446 /*
447 * check db_schema:{remove_name} permission
448 */
449 object.classId = NamespaceRelationId;
450 object.objectId = get_rel_namespace(relOid);
451 object.objectSubId = 0;
452 audit_name = getObjectIdentity(&object, false);
453
454 sepgsql_avc_check_perms(&object,
455 SEPG_CLASS_DB_SCHEMA,
456 SEPG_DB_SCHEMA__REMOVE_NAME,
457 audit_name,
458 true);
459 pfree(audit_name);
460
461 /* deal with indexes specially */
462 if (relkind == RELKIND_INDEX)
463 {
464 sepgsql_index_modify(relOid);
465 return;
466 }
467
468 /*
469 * check db_table/sequence/view:{drop} permission
470 */
471 object.classId = RelationRelationId;
472 object.objectId = relOid;
473 object.objectSubId = 0;
474 audit_name = getObjectIdentity(&object, false);
475
476 sepgsql_avc_check_perms(&object,
477 tclass,
478 SEPG_DB_TABLE__DROP,
479 audit_name,
480 true);
481 pfree(audit_name);
482
483 /*
484 * check db_column:{drop} permission
485 */
486 if (relkind == RELKIND_RELATION || relkind == RELKIND_PARTITIONED_TABLE)
487 {
488 Form_pg_attribute attForm;
489 CatCList *attrList;
490 HeapTuple atttup;
491 int i;
492
493 attrList = SearchSysCacheList1(ATTNUM, ObjectIdGetDatum(relOid));
494 for (i = 0; i < attrList->n_members; i++)
495 {
496 atttup = &attrList->members[i]->tuple;
497 attForm = (Form_pg_attribute) GETSTRUCT(atttup);
498
499 if (attForm->attisdropped)
500 continue;
501
502 object.classId = RelationRelationId;
503 object.objectId = relOid;
504 object.objectSubId = attForm->attnum;
505 audit_name = getObjectIdentity(&object, false);
506
507 sepgsql_avc_check_perms(&object,
508 SEPG_CLASS_DB_COLUMN,
509 SEPG_DB_COLUMN__DROP,
510 audit_name,
511 true);
512 pfree(audit_name);
513 }
514 ReleaseCatCacheList(attrList);
515 }
516}
ReleaseCatCacheList
void ReleaseCatCacheList(CatCList *list)
Definition catcache.c:2114
sepgsql_index_modify
static void sepgsql_index_modify(Oid indexOid)
Definition relation.c:762
get_rel_namespace
Oid get_rel_namespace(Oid relid)
Definition lsyscache.c:2102
SEPG_CLASS_DB_TABLE
#define SEPG_CLASS_DB_TABLE
Definition sepgsql.h:46
SEPG_DB_TABLE__DROP
#define SEPG_DB_TABLE__DROP
Definition sepgsql.h:138
SEPG_CLASS_DB_VIEW
#define SEPG_CLASS_DB_VIEW
Definition sepgsql.h:53
SEPG_CLASS_DB_SEQUENCE
#define SEPG_CLASS_DB_SEQUENCE
Definition sepgsql.h:47
SearchSysCacheList1
#define SearchSysCacheList1(cacheId, key1)
Definition syscache.h:127

References fb(), get_rel_namespace(), get_rel_relkind(), getObjectIdentity(), GETSTRUCT(), i, ObjectIdGetDatum(), pfree(), ReleaseCatCacheList(), SearchSysCacheList1, SEPG_CLASS_DB_COLUMN, SEPG_CLASS_DB_SCHEMA, SEPG_CLASS_DB_SEQUENCE, SEPG_CLASS_DB_TABLE, SEPG_CLASS_DB_VIEW, SEPG_DB_COLUMN__DROP, SEPG_DB_SCHEMA__REMOVE_NAME, SEPG_DB_TABLE__DROP, sepgsql_avc_check_perms(), and sepgsql_index_modify().

Referenced by sepgsql_object_access().

◆ sepgsql_relation_post_create()

void sepgsql_relation_post_create ( Oid  relOid)
extern

Definition at line 240 of file relation.c.

241{
242 Relation rel;
243 ScanKeyData skey;
244 SysScanDesc sscan;
245 HeapTuple tuple;
246 Form_pg_class classForm;
247 ObjectAddress object;
248 uint16_t tclass;
249 char *scontext; /* subject */
250 char *tcontext; /* schema */
251 char *rcontext; /* relation */
252 char *ccontext; /* column */
253 char *nsp_name;
254 StringInfoData audit_name;
255
256 /*
257 * Fetch catalog record of the new relation. Because pg_class entry is not
258 * visible right now, we need to scan the catalog using SnapshotSelf.
259 */
260 rel = table_open(RelationRelationId, AccessShareLock);
261
262 ScanKeyInit(&skey,
263 Anum_pg_class_oid,
264 BTEqualStrategyNumber, F_OIDEQ,
265 ObjectIdGetDatum(relOid));
266
267 sscan = systable_beginscan(rel, ClassOidIndexId, true,
268 SnapshotSelf, 1, &skey);
269
270 tuple = systable_getnext(sscan);
271 if (!HeapTupleIsValid(tuple))
272 elog(ERROR, "could not find tuple for relation %u", relOid);
273
274 classForm = (Form_pg_class) GETSTRUCT(tuple);
275
276 /* ignore indexes on toast tables */
277 if (classForm->relkind == RELKIND_INDEX &&
278 classForm->relnamespace == PG_TOAST_NAMESPACE)
279 goto out;
280
281 /*
282 * check db_schema:{add_name} permission of the namespace
283 */
284 object.classId = NamespaceRelationId;
285 object.objectId = classForm->relnamespace;
286 object.objectSubId = 0;
287 sepgsql_avc_check_perms(&object,
288 SEPG_CLASS_DB_SCHEMA,
289 SEPG_DB_SCHEMA__ADD_NAME,
290 getObjectIdentity(&object, false),
291 true);
292
293 switch (classForm->relkind)
294 {
295 case RELKIND_RELATION:
296 case RELKIND_PARTITIONED_TABLE:
297 tclass = SEPG_CLASS_DB_TABLE;
298 break;
299 case RELKIND_SEQUENCE:
300 tclass = SEPG_CLASS_DB_SEQUENCE;
301 break;
302 case RELKIND_VIEW:
303 tclass = SEPG_CLASS_DB_VIEW;
304 break;
305 case RELKIND_INDEX:
306 /* deal with indexes specially; no need for tclass */
307 sepgsql_index_modify(relOid);
308 goto out;
309 default:
310 /* ignore other relkinds */
311 goto out;
312 }
313
314 /*
315 * Compute a default security label when we create a new relation object
316 * under the specified namespace.
317 */
318 scontext = sepgsql_get_client_label();
319 tcontext = sepgsql_get_label(NamespaceRelationId,
320 classForm->relnamespace, 0);
321 rcontext = sepgsql_compute_create(scontext, tcontext, tclass,
322 NameStr(classForm->relname));
323
324 /*
325 * check db_xxx:{create} permission
326 */
327 nsp_name = get_namespace_name(classForm->relnamespace);
328 initStringInfo(&audit_name);
329 appendStringInfo(&audit_name, "%s.%s",
330 quote_identifier(nsp_name),
331 quote_identifier(NameStr(classForm->relname)));
332 sepgsql_avc_check_perms_label(rcontext,
333 tclass,
334 SEPG_DB_DATABASE__CREATE,
335 audit_name.data,
336 true);
337
338 /*
339 * Assign the default security label on the new regular or partitioned
340 * relation.
341 */
342 object.classId = RelationRelationId;
343 object.objectId = relOid;
344 object.objectSubId = 0;
345 SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, rcontext);
346
347 /*
348 * We also assign a default security label on columns of a new table.
349 */
350 if (classForm->relkind == RELKIND_RELATION ||
351 classForm->relkind == RELKIND_PARTITIONED_TABLE)
352 {
353 Relation arel;
354 ScanKeyData akey;
355 SysScanDesc ascan;
356 HeapTuple atup;
357 Form_pg_attribute attForm;
358
359 arel = table_open(AttributeRelationId, AccessShareLock);
360
361 ScanKeyInit(&akey,
362 Anum_pg_attribute_attrelid,
363 BTEqualStrategyNumber, F_OIDEQ,
364 ObjectIdGetDatum(relOid));
365
366 ascan = systable_beginscan(arel, AttributeRelidNumIndexId, true,
367 SnapshotSelf, 1, &akey);
368
369 while (HeapTupleIsValid(atup = systable_getnext(ascan)))
370 {
371 attForm = (Form_pg_attribute) GETSTRUCT(atup);
372
373 resetStringInfo(&audit_name);
374 appendStringInfo(&audit_name, "%s.%s.%s",
375 quote_identifier(nsp_name),
376 quote_identifier(NameStr(classForm->relname)),
377 quote_identifier(NameStr(attForm->attname)));
378
379 ccontext = sepgsql_compute_create(scontext,
380 rcontext,
381 SEPG_CLASS_DB_COLUMN,
382 NameStr(attForm->attname));
383
384 /*
385 * check db_column:{create} permission
386 */
387 sepgsql_avc_check_perms_label(ccontext,
388 SEPG_CLASS_DB_COLUMN,
389 SEPG_DB_COLUMN__CREATE,
390 audit_name.data,
391 true);
392
393 object.classId = RelationRelationId;
394 object.objectId = relOid;
395 object.objectSubId = attForm->attnum;
396 SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, ccontext);
397
398 pfree(ccontext);
399 }
400 systable_endscan(ascan);
401 table_close(arel, AccessShareLock);
402 }
403 pfree(rcontext);
404
405out:
406 systable_endscan(sscan);
407 table_close(rel, AccessShareLock);
408}
Form_pg_class
FormData_pg_class * Form_pg_class
Definition pg_class.h:156

References AccessShareLock, appendStringInfo(), BTEqualStrategyNumber, elog, ERROR, fb(), get_namespace_name(), getObjectIdentity(), GETSTRUCT(), HeapTupleIsValid, initStringInfo(), NameStr, ObjectIdGetDatum(), pfree(), quote_identifier(), resetStringInfo(), ScanKeyInit(), SEPG_CLASS_DB_COLUMN, SEPG_CLASS_DB_SCHEMA, SEPG_CLASS_DB_SEQUENCE, SEPG_CLASS_DB_TABLE, SEPG_CLASS_DB_VIEW, SEPG_DB_COLUMN__CREATE, SEPG_DB_DATABASE__CREATE, SEPG_DB_SCHEMA__ADD_NAME, sepgsql_avc_check_perms(), sepgsql_avc_check_perms_label(), sepgsql_compute_create(), sepgsql_get_client_label(), sepgsql_get_label(), sepgsql_index_modify(), SEPGSQL_LABEL_TAG, SetSecurityLabel(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access().

◆ sepgsql_relation_relabel()

void sepgsql_relation_relabel ( Oid  relOid,
const char *  seclabel 
)
extern

Definition at line 564 of file relation.c.

565{
566 ObjectAddress object;
567 char *audit_name;
568 char relkind = get_rel_relkind(relOid);
569 uint16_t tclass = 0;
570
571 if (relkind == RELKIND_RELATION || relkind == RELKIND_PARTITIONED_TABLE)
572 tclass = SEPG_CLASS_DB_TABLE;
573 else if (relkind == RELKIND_SEQUENCE)
574 tclass = SEPG_CLASS_DB_SEQUENCE;
575 else if (relkind == RELKIND_VIEW)
576 tclass = SEPG_CLASS_DB_VIEW;
577 else
578 ereport(ERROR,
579 (errcode(ERRCODE_WRONG_OBJECT_TYPE),
580 errmsg("cannot set security labels on relations except "
581 "for tables, sequences or views")));
582
583 object.classId = RelationRelationId;
584 object.objectId = relOid;
585 object.objectSubId = 0;
586 audit_name = getObjectIdentity(&object, false);
587
588 /*
589 * check db_xxx:{setattr relabelfrom} permission
590 */
591 sepgsql_avc_check_perms(&object,
592 tclass,
593 SEPG_DB_TABLE__SETATTR |
594 SEPG_DB_TABLE__RELABELFROM,
595 audit_name,
596 true);
597
598 /*
599 * check db_xxx:{relabelto} permission
600 */
601 sepgsql_avc_check_perms_label(seclabel,
602 tclass,
603 SEPG_DB_TABLE__RELABELTO,
604 audit_name,
605 true);
606 pfree(audit_name);
607}
SEPG_DB_TABLE__SETATTR
#define SEPG_DB_TABLE__SETATTR
Definition sepgsql.h:140
SEPG_DB_TABLE__RELABELFROM
#define SEPG_DB_TABLE__RELABELFROM
Definition sepgsql.h:141
SEPG_DB_TABLE__RELABELTO
#define SEPG_DB_TABLE__RELABELTO
Definition sepgsql.h:142

References ereport, errcode(), errmsg(), ERROR, fb(), get_rel_relkind(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_SEQUENCE, SEPG_CLASS_DB_TABLE, SEPG_CLASS_DB_VIEW, SEPG_DB_TABLE__RELABELFROM, SEPG_DB_TABLE__RELABELTO, SEPG_DB_TABLE__SETATTR, sepgsql_avc_check_perms(), and sepgsql_avc_check_perms_label().

Referenced by sepgsql_object_relabel().

◆ sepgsql_relation_setattr()

void sepgsql_relation_setattr ( Oid  relOid)
extern

Definition at line 615 of file relation.c.

616{
617 Relation rel;
618 ScanKeyData skey;
619 SysScanDesc sscan;
620 HeapTuple oldtup;
621 HeapTuple newtup;
622 Form_pg_class oldform;
623 Form_pg_class newform;
624 ObjectAddress object;
625 char *audit_name;
626 uint16_t tclass;
627
628 switch (get_rel_relkind(relOid))
629 {
630 case RELKIND_RELATION:
631 case RELKIND_PARTITIONED_TABLE:
632 tclass = SEPG_CLASS_DB_TABLE;
633 break;
634 case RELKIND_SEQUENCE:
635 tclass = SEPG_CLASS_DB_SEQUENCE;
636 break;
637 case RELKIND_VIEW:
638 tclass = SEPG_CLASS_DB_VIEW;
639 break;
640 case RELKIND_INDEX:
641 /* deal with indexes specially */
642 sepgsql_index_modify(relOid);
643 return;
644 default:
645 /* other relkinds don't need additional work */
646 return;
647 }
648
649 /*
650 * Fetch newer catalog
651 */
652 rel = table_open(RelationRelationId, AccessShareLock);
653
654 ScanKeyInit(&skey,
655 Anum_pg_class_oid,
656 BTEqualStrategyNumber, F_OIDEQ,
657 ObjectIdGetDatum(relOid));
658
659 sscan = systable_beginscan(rel, ClassOidIndexId, true,
660 SnapshotSelf, 1, &skey);
661
662 newtup = systable_getnext(sscan);
663 if (!HeapTupleIsValid(newtup))
664 elog(ERROR, "could not find tuple for relation %u", relOid);
665 newform = (Form_pg_class) GETSTRUCT(newtup);
666
667 /*
668 * Fetch older catalog
669 */
670 oldtup = SearchSysCache1(RELOID, ObjectIdGetDatum(relOid));
671 if (!HeapTupleIsValid(oldtup))
672 elog(ERROR, "cache lookup failed for relation %u", relOid);
673 oldform = (Form_pg_class) GETSTRUCT(oldtup);
674
675 /*
676 * Does this ALTER command takes operation to namespace?
677 */
678 if (newform->relnamespace != oldform->relnamespace)
679 {
680 sepgsql_schema_remove_name(oldform->relnamespace);
681 sepgsql_schema_add_name(newform->relnamespace);
682 }
683 if (strcmp(NameStr(newform->relname), NameStr(oldform->relname)) != 0)
684 sepgsql_schema_rename(oldform->relnamespace);
685
686 /*
687 * XXX - In the future version, db_tuple:{use} of system catalog entry
688 * shall be checked, if tablespace configuration is changed.
689 */
690
691 /*
692 * check db_xxx:{setattr} permission
693 */
694 object.classId = RelationRelationId;
695 object.objectId = relOid;
696 object.objectSubId = 0;
697 audit_name = getObjectIdentity(&object, false);
698
699 sepgsql_avc_check_perms(&object,
700 tclass,
701 SEPG_DB_TABLE__SETATTR,
702 audit_name,
703 true);
704 pfree(audit_name);
705
706 ReleaseSysCache(oldtup);
707 systable_endscan(sscan);
708 table_close(rel, AccessShareLock);
709}

References AccessShareLock, BTEqualStrategyNumber, elog, ERROR, fb(), get_rel_relkind(), getObjectIdentity(), GETSTRUCT(), HeapTupleIsValid, NameStr, ObjectIdGetDatum(), pfree(), ReleaseSysCache(), ScanKeyInit(), SearchSysCache1(), SEPG_CLASS_DB_SEQUENCE, SEPG_CLASS_DB_TABLE, SEPG_CLASS_DB_VIEW, SEPG_DB_TABLE__SETATTR, sepgsql_avc_check_perms(), sepgsql_index_modify(), sepgsql_schema_add_name(), sepgsql_schema_remove_name(), sepgsql_schema_rename(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access(), and sepgsql_relation_setattr_extra().

◆ sepgsql_relation_truncate()

void sepgsql_relation_truncate ( Oid  relOid)
extern

Definition at line 524 of file relation.c.

525{
526 ObjectAddress object;
527 char *audit_name;
528 uint16_t tclass = 0;
529 char relkind = get_rel_relkind(relOid);
530
531 switch (relkind)
532 {
533 case RELKIND_RELATION:
534 case RELKIND_PARTITIONED_TABLE:
535 tclass = SEPG_CLASS_DB_TABLE;
536 break;
537 default:
538 /* ignore other relkinds */
539 return;
540 }
541
542 /*
543 * check db_table:{truncate} permission
544 */
545 object.classId = RelationRelationId;
546 object.objectId = relOid;
547 object.objectSubId = 0;
548 audit_name = getObjectIdentity(&object, false);
549
550 sepgsql_avc_check_perms(&object,
551 tclass,
552 SEPG_DB_TABLE__TRUNCATE,
553 audit_name,
554 true);
555 pfree(audit_name);
556}
SEPG_DB_TABLE__TRUNCATE
#define SEPG_DB_TABLE__TRUNCATE
Definition sepgsql.h:148

References fb(), get_rel_relkind(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_TABLE, SEPG_DB_TABLE__TRUNCATE, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_schema_add_name()

void sepgsql_schema_add_name ( Oid  namespaceId)
extern

Definition at line 217 of file schema.c.

218{
219 check_schema_perms(namespaceId, SEPG_DB_SCHEMA__ADD_NAME, true);
220}
check_schema_perms
static bool check_schema_perms(Oid namespaceId, uint32 required, bool abort_on_violation)
Definition schema.c:179

References check_schema_perms(), fb(), and SEPG_DB_SCHEMA__ADD_NAME.

Referenced by sepgsql_proc_setattr(), and sepgsql_relation_setattr().

◆ sepgsql_schema_drop()

void sepgsql_schema_drop ( Oid  namespaceId)
extern

Definition at line 114 of file schema.c.

115{
116 ObjectAddress object;
117 char *audit_name;
118
119 /*
120 * check db_schema:{drop} permission
121 */
122 object.classId = NamespaceRelationId;
123 object.objectId = namespaceId;
124 object.objectSubId = 0;
125 audit_name = getObjectIdentity(&object, false);
126
127 sepgsql_avc_check_perms(&object,
128 SEPG_CLASS_DB_SCHEMA,
129 SEPG_DB_SCHEMA__DROP,
130 audit_name,
131 true);
132 pfree(audit_name);
133}
SEPG_DB_SCHEMA__DROP
#define SEPG_DB_SCHEMA__DROP
Definition sepgsql.h:128

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_SCHEMA, SEPG_DB_SCHEMA__DROP, and sepgsql_avc_check_perms().

Referenced by sepgsql_object_access().

◆ sepgsql_schema_post_create()

void sepgsql_schema_post_create ( Oid  namespaceId)
extern

Definition at line 36 of file schema.c.

37{
38 Relation rel;
39 ScanKeyData skey;
40 SysScanDesc sscan;
41 HeapTuple tuple;
42 char *tcontext;
43 char *ncontext;
44 const char *nsp_name;
45 ObjectAddress object;
46 Form_pg_namespace nspForm;
47 StringInfoData audit_name;
48
49 /*
50 * Compute a default security label when we create a new schema object
51 * under the working database.
52 *
53 * XXX - upcoming version of libselinux supports to take object name to
54 * handle special treatment on default security label; such as special
55 * label on "pg_temp" schema.
56 */
57 rel = table_open(NamespaceRelationId, AccessShareLock);
58
59 ScanKeyInit(&skey,
60 Anum_pg_namespace_oid,
61 BTEqualStrategyNumber, F_OIDEQ,
62 ObjectIdGetDatum(namespaceId));
63
64 sscan = systable_beginscan(rel, NamespaceOidIndexId, true,
65 SnapshotSelf, 1, &skey);
66 tuple = systable_getnext(sscan);
67 if (!HeapTupleIsValid(tuple))
68 elog(ERROR, "could not find tuple for namespace %u", namespaceId);
69
70 nspForm = (Form_pg_namespace) GETSTRUCT(tuple);
71 nsp_name = NameStr(nspForm->nspname);
72 if (strncmp(nsp_name, "pg_temp_", 8) == 0)
73 nsp_name = "pg_temp";
74 else if (strncmp(nsp_name, "pg_toast_temp_", 14) == 0)
75 nsp_name = "pg_toast_temp";
76
77 tcontext = sepgsql_get_label(DatabaseRelationId, MyDatabaseId, 0);
78 ncontext = sepgsql_compute_create(sepgsql_get_client_label(),
79 tcontext,
80 SEPG_CLASS_DB_SCHEMA,
81 nsp_name);
82
83 /*
84 * check db_schema:{create}
85 */
86 initStringInfo(&audit_name);
87 appendStringInfoString(&audit_name, quote_identifier(nsp_name));
88 sepgsql_avc_check_perms_label(ncontext,
89 SEPG_CLASS_DB_SCHEMA,
90 SEPG_DB_SCHEMA__CREATE,
91 audit_name.data,
92 true);
93 systable_endscan(sscan);
94 table_close(rel, AccessShareLock);
95
96 /*
97 * Assign the default security label on a new procedure
98 */
99 object.classId = NamespaceRelationId;
100 object.objectId = namespaceId;
101 object.objectSubId = 0;
102 SetSecurityLabel(&object, SEPGSQL_LABEL_TAG, ncontext);
103
104 pfree(ncontext);
105 pfree(tcontext);
106}
MyDatabaseId
Oid MyDatabaseId
Definition globals.c:94
Form_pg_namespace
FormData_pg_namespace * Form_pg_namespace
Definition pg_namespace.h:52
SEPG_DB_SCHEMA__CREATE
#define SEPG_DB_SCHEMA__CREATE
Definition sepgsql.h:127

References AccessShareLock, appendStringInfoString(), BTEqualStrategyNumber, elog, ERROR, fb(), GETSTRUCT(), HeapTupleIsValid, initStringInfo(), MyDatabaseId, NameStr, ObjectIdGetDatum(), pfree(), quote_identifier(), ScanKeyInit(), SEPG_CLASS_DB_SCHEMA, SEPG_DB_SCHEMA__CREATE, sepgsql_avc_check_perms_label(), sepgsql_compute_create(), sepgsql_get_client_label(), sepgsql_get_label(), SEPGSQL_LABEL_TAG, SetSecurityLabel(), SnapshotSelf, systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by sepgsql_object_access().

◆ sepgsql_schema_relabel()

void sepgsql_schema_relabel ( Oid  namespaceId,
const char *  seclabel 
)
extern

Definition at line 142 of file schema.c.

143{
144 ObjectAddress object;
145 char *audit_name;
146
147 object.classId = NamespaceRelationId;
148 object.objectId = namespaceId;
149 object.objectSubId = 0;
150 audit_name = getObjectIdentity(&object, false);
151
152 /*
153 * check db_schema:{setattr relabelfrom} permission
154 */
155 sepgsql_avc_check_perms(&object,
156 SEPG_CLASS_DB_SCHEMA,
157 SEPG_DB_SCHEMA__SETATTR |
158 SEPG_DB_SCHEMA__RELABELFROM,
159 audit_name,
160 true);
161
162 /*
163 * check db_schema:{relabelto} permission
164 */
165 sepgsql_avc_check_perms_label(seclabel,
166 SEPG_CLASS_DB_SCHEMA,
167 SEPG_DB_SCHEMA__RELABELTO,
168 audit_name,
169 true);
170 pfree(audit_name);
171}
SEPG_DB_SCHEMA__SETATTR
#define SEPG_DB_SCHEMA__SETATTR
Definition sepgsql.h:130
SEPG_DB_SCHEMA__RELABELFROM
#define SEPG_DB_SCHEMA__RELABELFROM
Definition sepgsql.h:131
SEPG_DB_SCHEMA__RELABELTO
#define SEPG_DB_SCHEMA__RELABELTO
Definition sepgsql.h:132

References ObjectAddress::classId, fb(), getObjectIdentity(), pfree(), SEPG_CLASS_DB_SCHEMA, SEPG_DB_SCHEMA__RELABELFROM, SEPG_DB_SCHEMA__RELABELTO, SEPG_DB_SCHEMA__SETATTR, sepgsql_avc_check_perms(), and sepgsql_avc_check_perms_label().

Referenced by sepgsql_object_relabel().

◆ sepgsql_schema_remove_name()

void sepgsql_schema_remove_name ( Oid  namespaceId)
extern

Definition at line 223 of file schema.c.

224{
225 check_schema_perms(namespaceId, SEPG_DB_SCHEMA__REMOVE_NAME, true);
226}

References check_schema_perms(), fb(), and SEPG_DB_SCHEMA__REMOVE_NAME.

Referenced by sepgsql_proc_setattr(), and sepgsql_relation_setattr().

◆ sepgsql_schema_rename()

void sepgsql_schema_rename ( Oid  namespaceId)
extern

Definition at line 229 of file schema.c.

230{
231 check_schema_perms(namespaceId,
232 SEPG_DB_SCHEMA__ADD_NAME |
233 SEPG_DB_SCHEMA__REMOVE_NAME,
234 true);
235}

References check_schema_perms(), fb(), SEPG_DB_SCHEMA__ADD_NAME, and SEPG_DB_SCHEMA__REMOVE_NAME.

Referenced by sepgsql_proc_setattr(), and sepgsql_relation_setattr().

◆ sepgsql_schema_search()

bool sepgsql_schema_search ( Oid  namespaceId,
bool  abort_on_violation 
)
extern

Definition at line 209 of file schema.c.

210{
211 return check_schema_perms(namespaceId,
212 SEPG_DB_SCHEMA__SEARCH,
213 abort_on_violation);
214}
SEPG_DB_SCHEMA__SEARCH
#define SEPG_DB_SCHEMA__SEARCH
Definition sepgsql.h:133

References check_schema_perms(), fb(), and SEPG_DB_SCHEMA__SEARCH.

Referenced by sepgsql_object_access().

◆ sepgsql_schema_setattr()

void sepgsql_schema_setattr ( Oid  namespaceId)
extern

Definition at line 202 of file schema.c.

203{
204 check_schema_perms(namespaceId, SEPG_DB_SCHEMA__SETATTR, true);
205}

References check_schema_perms(), fb(), and SEPG_DB_SCHEMA__SETATTR.

Referenced by sepgsql_object_access().

◆ sepgsql_set_mode()

int sepgsql_set_mode ( int  new_mode)
extern

Definition at line 634 of file selinux.c.

635{
636 int old_mode = sepgsql_mode;
637
638 sepgsql_mode = new_mode;
639
640 return old_mode;
641}

References fb(), and sepgsql_mode.

Referenced by _PG_init(), and sepgsql_client_auth().