#include "postgres.h"
#include "fmgr.h"
#include "utils/builtins.h"
#include "utils/uuid.h"
#include <netinet/in.h>
#include <arpa/inet.h>
#include "md5.h"
#include "sha1.h"

Include dependency graph for uuid-ossp.c:

Macros
#define	uuid_hash bsd_uuid_hash

#define	UUID_MAKE_MC 0

#define	UUID_MAKE_V1 1

#define	UUID_MAKE_V2 2

#define	UUID_MAKE_V3 3

#define	UUID_MAKE_V4 4

#define	UUID_MAKE_V5 5

#define	dce_uuid_t uuid_t

#define	UUID_TO_NETWORK(uu)

#define	UUID_TO_LOCAL(uu)

#define	UUID_V3_OR_V5(uu, v)

Functions
	PG_FUNCTION_INFO_V1 (uuid_nil)

	PG_FUNCTION_INFO_V1 (uuid_ns_dns)

	PG_FUNCTION_INFO_V1 (uuid_ns_url)

	PG_FUNCTION_INFO_V1 (uuid_ns_oid)

	PG_FUNCTION_INFO_V1 (uuid_ns_x500)

	PG_FUNCTION_INFO_V1 (uuid_generate_v1)

	PG_FUNCTION_INFO_V1 (uuid_generate_v1mc)

	PG_FUNCTION_INFO_V1 (uuid_generate_v3)

	PG_FUNCTION_INFO_V1 (uuid_generate_v4)

	PG_FUNCTION_INFO_V1 (uuid_generate_v5)

static Datum	uuid_generate_internal (int v, unsigned char ns, char ptr, int len)

Datum	uuid_nil (PG_FUNCTION_ARGS)

Datum	uuid_ns_dns (PG_FUNCTION_ARGS)

Datum	uuid_ns_url (PG_FUNCTION_ARGS)

Datum	uuid_ns_oid (PG_FUNCTION_ARGS)

Datum	uuid_ns_x500 (PG_FUNCTION_ARGS)

Datum	uuid_generate_v1 (PG_FUNCTION_ARGS)

Datum	uuid_generate_v1mc (PG_FUNCTION_ARGS)

Datum	uuid_generate_v3 (PG_FUNCTION_ARGS)

Datum	uuid_generate_v4 (PG_FUNCTION_ARGS)

Datum	uuid_generate_v5 (PG_FUNCTION_ARGS)

Variables
	PG_MODULE_MAGIC

Macro Definition Documentation

#define dce_uuid_t uuid_t

Definition at line 85 of file uuid-ossp.c.

Referenced by uuid_generate_internal(), and uuid_generate_v1mc().

#define uuid_hash bsd_uuid_hash

Definition at line 31 of file uuid-ossp.c.

#define UUID_MAKE_MC 0

Definition at line 62 of file uuid-ossp.c.

Referenced by uuid_generate_v1mc().

#define UUID_MAKE_V1 1

Definition at line 63 of file uuid-ossp.c.

Referenced by uuid_generate_v1(), and uuid_generate_v1mc().

#define UUID_MAKE_V2 2

Definition at line 64 of file uuid-ossp.c.

#define UUID_MAKE_V3 3

Definition at line 65 of file uuid-ossp.c.

Referenced by uuid_generate_v3().

#define UUID_MAKE_V4 4

Definition at line 66 of file uuid-ossp.c.

Referenced by uuid_generate_v4().

#define UUID_MAKE_V5 5

Definition at line 67 of file uuid-ossp.c.

Referenced by uuid_generate_v5().

#define UUID_TO_LOCAL ( uu )

Value:

do { \
    uu.time_low = ntohl(uu.time_low); \
    uu.time_mid = ntohs(uu.time_mid); \
    uu.time_hi_and_version = ntohs(uu.time_hi_and_version); \
} while (0)

Definition at line 98 of file uuid-ossp.c.

Referenced by uuid_generate_internal().

#define UUID_TO_NETWORK ( uu )

Value:

do { \
    uu.time_low = htonl(uu.time_low); \
    uu.time_mid = htons(uu.time_mid); \
    uu.time_hi_and_version = htons(uu.time_hi_and_version); \
} while (0)

Definition at line 91 of file uuid-ossp.c.

Referenced by uuid_generate_internal().

#define UUID_V3_OR_V5	(	uu,
		v
	)

Value:

do { \
    uu.time_hi_and_version &= 0x0FFF; \
    uu.time_hi_and_version |= (v << 12); \
    uu.clock_seq_hi_and_reserved &= 0x3F; \
    uu.clock_seq_hi_and_reserved |= 0x80; \
} while(0)

Definition at line 105 of file uuid-ossp.c.

Referenced by uuid_generate_internal().

Function Documentation

PG_FUNCTION_INFO_V1 ( uuid_nil )

PG_FUNCTION_INFO_V1 ( uuid_ns_dns )

PG_FUNCTION_INFO_V1 ( uuid_ns_url )

PG_FUNCTION_INFO_V1 ( uuid_ns_oid )

PG_FUNCTION_INFO_V1 ( uuid_ns_x500 )

PG_FUNCTION_INFO_V1 ( uuid_generate_v1 )

PG_FUNCTION_INFO_V1 ( uuid_generate_v1mc )

PG_FUNCTION_INFO_V1 ( uuid_generate_v3 )

PG_FUNCTION_INFO_V1 ( uuid_generate_v4 )

PG_FUNCTION_INFO_V1 ( uuid_generate_v5 )

static Datum uuid_generate_internal	(	int	v,
		unsigned char *	ns,
		char *	ptr,
		int	len
	)

static

Definition at line 259 of file uuid-ossp.c.

References CStringGetDatum, dce_uuid_t, DirectFunctionCall1, ereport, errcode(), errmsg(), ERROR, free, MD5_CTX, MD5Final, MD5Init, MD5Update, NULL, SHA1_RESULTLEN, SHA1Final, SHA1Init, SHA1Update, snprintf(), status(), strlcpy(), uuid_in(), UUID_TO_LOCAL, UUID_TO_NETWORK, and UUID_V3_OR_V5.

Referenced by uuid_generate_v1(), uuid_generate_v1mc(), uuid_generate_v3(), uuid_generate_v4(), uuid_generate_v5(), uuid_nil(), uuid_ns_dns(), uuid_ns_oid(), uuid_ns_url(), and uuid_ns_x500().

 {
     char        strbuf[40];
 
     switch (v)
     {
         case 0:                 /* constant-value uuids */
             strlcpy(strbuf, ptr, 37);
             break;
 
         case 1:                 /* time/node-based uuids */
             {
 #ifdef HAVE_UUID_E2FS
                 uuid_t      uu;
 
                 uuid_generate_time(uu);
                 uuid_unparse(uu, strbuf);
 
                 /*
                  * PTR, if set, replaces the trailing characters of the uuid;
                  * this is to support v1mc, where a random multicast MAC is
                  * used instead of the physical one
                  */
                 if (ptr && len <= 36)
                     strcpy(strbuf + (36 - len), ptr);
 #else                           /* BSD */
                 uuid_t      uu;
                 uint32_t    status = uuid_s_ok;
                 char       *str = NULL;
 
                 uuid_create(&uu, &status);
 
                 if (status == uuid_s_ok)
                 {
                     uuid_to_string(&uu, &str, &status);
                     if (status == uuid_s_ok)
                     {
                         strlcpy(strbuf, str, 37);
 
                         /*
                          * PTR, if set, replaces the trailing characters of
                          * the uuid; this is to support v1mc, where a random
                          * multicast MAC is used instead of the physical one
                          */
                         if (ptr && len <= 36)
                             strcpy(strbuf + (36 - len), ptr);
                     }
                     if (str)
                         free(str);
                 }
 
                 if (status != uuid_s_ok)
                     ereport(ERROR,
                             (errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION),
                              errmsg("uuid library failure: %d",
                                     (int) status)));
 #endif
                 break;
             }
 
         case 3:                 /* namespace-based MD5 uuids */
         case 5:                 /* namespace-based SHA1 uuids */
             {
                 dce_uuid_t  uu;
 #ifdef HAVE_UUID_BSD
                 uint32_t    status = uuid_s_ok;
                 char       *str = NULL;
 #endif
 
                 if (v == 3)
                 {
                     MD5_CTX     ctx;
 
                     MD5Init(&ctx);
                     MD5Update(&ctx, ns, sizeof(uu));
                     MD5Update(&ctx, (unsigned char *) ptr, len);
                     /* we assume sizeof MD5 result is 16, same as UUID size */
                     MD5Final((unsigned char *) &uu, &ctx);
                 }
                 else
                 {
                     SHA1_CTX    ctx;
                     unsigned char sha1result[SHA1_RESULTLEN];
 
                     SHA1Init(&ctx);
                     SHA1Update(&ctx, ns, sizeof(uu));
                     SHA1Update(&ctx, (unsigned char *) ptr, len);
                     SHA1Final(sha1result, &ctx);
                     memcpy(&uu, sha1result, sizeof(uu));
                 }
 
                 /* the calculated hash is using local order */
                 UUID_TO_NETWORK(uu);
                 UUID_V3_OR_V5(uu, v);
 
 #ifdef HAVE_UUID_E2FS
                 /* uuid_unparse expects local order */
                 UUID_TO_LOCAL(uu);
                 uuid_unparse((unsigned char *) &uu, strbuf);
 #else                           /* BSD */
                 uuid_to_string(&uu, &str, &status);
 
                 if (status == uuid_s_ok)
                     strlcpy(strbuf, str, 37);
 
                 if (str)
                     free(str);
 
                 if (status != uuid_s_ok)
                     ereport(ERROR,
                             (errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION),
                              errmsg("uuid library failure: %d",
                                     (int) status)));
 #endif
                 break;
             }
 
         case 4:                 /* random uuid */
         default:
             {
 #ifdef HAVE_UUID_E2FS
                 uuid_t      uu;
 
                 uuid_generate_random(uu);
                 uuid_unparse(uu, strbuf);
 #else                           /* BSD */
                 snprintf(strbuf, sizeof(strbuf),
                          "%08lx-%04x-%04x-%04x-%04x%08lx",
                          (unsigned long) arc4random(),
                          (unsigned) (arc4random() & 0xffff),
                          (unsigned) ((arc4random() & 0xfff) | 0x4000),
                          (unsigned) ((arc4random() & 0x3fff) | 0x8000),
                          (unsigned) (arc4random() & 0xffff),
                          (unsigned long) arc4random());
 #endif
                 break;
             }
     }
 
     return DirectFunctionCall1(uuid_in, CStringGetDatum(strbuf));
 }

Datum uuid_generate_v1 ( PG_FUNCTION_ARGS )

Definition at line 465 of file uuid-ossp.c.

References NULL, uuid_generate_internal(), and UUID_MAKE_V1.

 {
     return uuid_generate_internal(UUID_MAKE_V1, NULL, NULL, 0);
 }

Datum uuid_generate_v1mc ( PG_FUNCTION_ARGS )

Definition at line 472 of file uuid-ossp.c.

References buf, dce_uuid_t, NULL, snprintf(), uuid_generate_internal(), UUID_MAKE_MC, and UUID_MAKE_V1.

 {
 #ifdef HAVE_UUID_OSSP
     char       *buf = NULL;
 #elif defined(HAVE_UUID_E2FS)
     char        strbuf[40];
     char       *buf;
     uuid_t      uu;
 
     uuid_generate_random(uu);
 
     /* set IEEE802 multicast and local-admin bits */
     ((dce_uuid_t *) &uu)->node[0] |= 0x03;
 
     uuid_unparse(uu, strbuf);
     buf = strbuf + 24;
 #else                           /* BSD */
     char        buf[16];
 
     /* set IEEE802 multicast and local-admin bits */
     snprintf(buf, sizeof(buf), "-%04x%08lx",
              (unsigned) ((arc4random() & 0xffff) | 0x0300),
              (unsigned long) arc4random());
 #endif
 
     return uuid_generate_internal(UUID_MAKE_V1 | UUID_MAKE_MC, NULL,
                                   buf, 13);
 }

Datum uuid_generate_v3 ( PG_FUNCTION_ARGS )

Definition at line 503 of file uuid-ossp.c.

References PG_GETARG_TEXT_PP, PG_GETARG_UUID_P, uuid_generate_internal(), UUID_MAKE_V3, VARDATA_ANY, and VARSIZE_ANY_EXHDR.

 {
     pg_uuid_t  *ns = PG_GETARG_UUID_P(0);
     text       *name = PG_GETARG_TEXT_PP(1);
 
 #ifdef HAVE_UUID_OSSP
     return uuid_generate_v35_internal(UUID_MAKE_V3, ns, name);
 #else
     return uuid_generate_internal(UUID_MAKE_V3, (unsigned char *) ns,
                                   VARDATA_ANY(name), VARSIZE_ANY_EXHDR(name));
 #endif
 }

Datum uuid_generate_v4 ( PG_FUNCTION_ARGS )

Definition at line 518 of file uuid-ossp.c.

References NULL, uuid_generate_internal(), and UUID_MAKE_V4.

 {
     return uuid_generate_internal(UUID_MAKE_V4, NULL, NULL, 0);
 }

Datum uuid_generate_v5 ( PG_FUNCTION_ARGS )

Definition at line 525 of file uuid-ossp.c.

References PG_GETARG_TEXT_PP, PG_GETARG_UUID_P, uuid_generate_internal(), UUID_MAKE_V5, VARDATA_ANY, and VARSIZE_ANY_EXHDR.

 {
     pg_uuid_t  *ns = PG_GETARG_UUID_P(0);
     text       *name = PG_GETARG_TEXT_PP(1);
 
 #ifdef HAVE_UUID_OSSP
     return uuid_generate_v35_internal(UUID_MAKE_V5, ns, name);
 #else
     return uuid_generate_internal(UUID_MAKE_V5, (unsigned char *) ns,
                                   VARDATA_ANY(name), VARSIZE_ANY_EXHDR(name));
 #endif
 }

Datum uuid_nil ( PG_FUNCTION_ARGS )

Definition at line 405 of file uuid-ossp.c.

References NULL, and uuid_generate_internal().

 {
 #ifdef HAVE_UUID_OSSP
     return special_uuid_value("nil");
 #else
     return uuid_generate_internal(0, NULL,
                                   "00000000-0000-0000-0000-000000000000", 36);
 #endif
 }

Datum uuid_ns_dns ( PG_FUNCTION_ARGS )

Definition at line 417 of file uuid-ossp.c.

References NULL, and uuid_generate_internal().

 {
 #ifdef HAVE_UUID_OSSP
     return special_uuid_value("ns:DNS");
 #else
     return uuid_generate_internal(0, NULL,
                                   "6ba7b810-9dad-11d1-80b4-00c04fd430c8", 36);
 #endif
 }

Datum uuid_ns_oid ( PG_FUNCTION_ARGS )

Definition at line 441 of file uuid-ossp.c.

References NULL, and uuid_generate_internal().

 {
 #ifdef HAVE_UUID_OSSP
     return special_uuid_value("ns:OID");
 #else
     return uuid_generate_internal(0, NULL,
                                   "6ba7b812-9dad-11d1-80b4-00c04fd430c8", 36);
 #endif
 }

Datum uuid_ns_url ( PG_FUNCTION_ARGS )

Definition at line 429 of file uuid-ossp.c.

References NULL, and uuid_generate_internal().

 {
 #ifdef HAVE_UUID_OSSP
     return special_uuid_value("ns:URL");
 #else
     return uuid_generate_internal(0, NULL,
                                   "6ba7b811-9dad-11d1-80b4-00c04fd430c8", 36);
 #endif
 }

Datum uuid_ns_x500 ( PG_FUNCTION_ARGS )

Definition at line 453 of file uuid-ossp.c.

References NULL, and uuid_generate_internal().

 {
 #ifdef HAVE_UUID_OSSP
     return special_uuid_value("ns:X500");
 #else
     return uuid_generate_internal(0, NULL,
                                   "6ba7b814-9dad-11d1-80b4-00c04fd430c8", 36);
 #endif
 }

Variable Documentation

PG_MODULE_MAGIC

Definition at line 115 of file uuid-ossp.c.

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation