Header And Logo
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#include "postgres.h"#include <ctype.h>#include "parser/scansup.h"#include "utils/builtins.h"#include "px.h"#include "px-crypt.h"#include "pgcrypto.h"
Go to the source code of this file.
Typedefs | |
| typedef int(* | PFN )(const char *name, void **res) |
Functions | |
| static void * | find_provider (text *name, PFN pf, char *desc, int silent) |
| PG_FUNCTION_INFO_V1 (pg_digest) | |
| Datum | pg_digest (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_hmac) | |
| Datum | pg_hmac (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_gen_salt) | |
| Datum | pg_gen_salt (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_gen_salt_rounds) | |
| Datum | pg_gen_salt_rounds (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_crypt) | |
| Datum | pg_crypt (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_encrypt) | |
| Datum | pg_encrypt (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_decrypt) | |
| Datum | pg_decrypt (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_encrypt_iv) | |
| Datum | pg_encrypt_iv (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_decrypt_iv) | |
| Datum | pg_decrypt_iv (PG_FUNCTION_ARGS) |
| PG_FUNCTION_INFO_V1 (pg_random_bytes) | |
| Datum | pg_random_bytes (PG_FUNCTION_ARGS) |
Variables | |
| PG_MODULE_MAGIC | |
Definition at line 47 of file pgcrypto.c.
Definition at line 447 of file pgcrypto.c.
References buf, downcase_truncate_identifier(), ereport, errcode(), errmsg(), ERROR, NULL, pfree(), px_strerror(), VARDATA, VARHDRSZ, and VARSIZE.
Referenced by pg_decrypt(), pg_decrypt_iv(), pg_digest(), pg_encrypt(), pg_encrypt_iv(), and pg_hmac().
{
void *res;
char *buf;
int err;
buf = downcase_truncate_identifier(VARDATA(name),
VARSIZE(name) - VARHDRSZ,
false);
err = provider_lookup(buf, &res);
if (err && !silent)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("Cannot use \"%s\": %s", buf, px_strerror(err))));
pfree(buf);
return err ? NULL : res;
}
| Datum pg_crypt | ( | PG_FUNCTION_ARGS | ) |
Definition at line 178 of file pgcrypto.c.
References cstring_to_text(), ereport, errcode(), errmsg(), ERROR, NULL, palloc0(), pfree(), PG_FREE_IF_COPY, PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, px_crypt(), PX_MAX_CRYPT, and text_to_cstring().
{
text *arg0 = PG_GETARG_TEXT_PP(0);
text *arg1 = PG_GETARG_TEXT_PP(1);
char *buf0,
*buf1,
*cres,
*resbuf;
text *res;
buf0 = text_to_cstring(arg0);
buf1 = text_to_cstring(arg1);
resbuf = palloc0(PX_MAX_CRYPT);
cres = px_crypt(buf0, buf1, resbuf, PX_MAX_CRYPT);
pfree(buf0);
pfree(buf1);
if (cres == NULL)
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("crypt(3) returned NULL")));
res = cstring_to_text(cres);
pfree(resbuf);
PG_FREE_IF_COPY(arg0, 0);
PG_FREE_IF_COPY(arg1, 1);
PG_RETURN_TEXT_P(res);
}
| Datum pg_decrypt | ( | PG_FUNCTION_ARGS | ) |
Definition at line 266 of file pgcrypto.c.
References ereport, errcode(), errmsg(), ERROR, find_provider(), NULL, palloc(), PG_FREE_IF_COPY, PG_GETARG_BYTEA_P, PG_GETARG_TEXT_P, PG_RETURN_BYTEA_P, px_combo_decrypt, px_combo_decrypt_len, px_combo_free, px_combo_init, px_find_combo(), px_strerror(), SET_VARSIZE, VARDATA, VARHDRSZ, and VARSIZE.
{
int err;
bytea *data,
*key,
*res;
text *type;
PX_Combo *c;
unsigned dlen,
klen,
rlen;
type = PG_GETARG_TEXT_P(2);
c = find_provider(type, (PFN) px_find_combo, "Cipher", 0);
data = PG_GETARG_BYTEA_P(0);
key = PG_GETARG_BYTEA_P(1);
dlen = VARSIZE(data) - VARHDRSZ;
klen = VARSIZE(key) - VARHDRSZ;
rlen = px_combo_decrypt_len(c, dlen);
res = palloc(VARHDRSZ + rlen);
err = px_combo_init(c, (uint8 *) VARDATA(key), klen, NULL, 0);
if (!err)
err = px_combo_decrypt(c, (uint8 *) VARDATA(data), dlen,
(uint8 *) VARDATA(res), &rlen);
px_combo_free(c);
if (err)
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("decrypt error: %s", px_strerror(err))));
SET_VARSIZE(res, VARHDRSZ + rlen);
PG_FREE_IF_COPY(data, 0);
PG_FREE_IF_COPY(key, 1);
PG_FREE_IF_COPY(type, 2);
PG_RETURN_BYTEA_P(res);
}
| Datum pg_decrypt_iv | ( | PG_FUNCTION_ARGS | ) |
Definition at line 368 of file pgcrypto.c.
References ereport, errcode(), errmsg(), ERROR, find_provider(), palloc(), PG_FREE_IF_COPY, PG_GETARG_BYTEA_P, PG_GETARG_TEXT_P, PG_RETURN_BYTEA_P, px_combo_decrypt, px_combo_decrypt_len, px_combo_free, px_combo_init, px_find_combo(), px_strerror(), SET_VARSIZE, VARDATA, VARHDRSZ, and VARSIZE.
{
int err;
bytea *data,
*key,
*iv,
*res;
text *type;
PX_Combo *c;
unsigned dlen,
klen,
rlen,
ivlen;
type = PG_GETARG_TEXT_P(3);
c = find_provider(type, (PFN) px_find_combo, "Cipher", 0);
data = PG_GETARG_BYTEA_P(0);
key = PG_GETARG_BYTEA_P(1);
iv = PG_GETARG_BYTEA_P(2);
dlen = VARSIZE(data) - VARHDRSZ;
klen = VARSIZE(key) - VARHDRSZ;
ivlen = VARSIZE(iv) - VARHDRSZ;
rlen = px_combo_decrypt_len(c, dlen);
res = palloc(VARHDRSZ + rlen);
err = px_combo_init(c, (uint8 *) VARDATA(key), klen,
(uint8 *) VARDATA(iv), ivlen);
if (!err)
err = px_combo_decrypt(c, (uint8 *) VARDATA(data), dlen,
(uint8 *) VARDATA(res), &rlen);
px_combo_free(c);
if (err)
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("decrypt_iv error: %s", px_strerror(err))));
SET_VARSIZE(res, VARHDRSZ + rlen);
PG_FREE_IF_COPY(data, 0);
PG_FREE_IF_COPY(key, 1);
PG_FREE_IF_COPY(iv, 2);
PG_FREE_IF_COPY(type, 3);
PG_RETURN_BYTEA_P(res);
}
| Datum pg_digest | ( | PG_FUNCTION_ARGS | ) |
Definition at line 54 of file pgcrypto.c.
References arg, find_provider(), name, palloc(), PG_FREE_IF_COPY, PG_GETARG_BYTEA_P, PG_GETARG_TEXT_P, PG_RETURN_BYTEA_P, px_find_digest(), px_md_finish, px_md_free, px_md_result_size, px_md_update, SET_VARSIZE, VARDATA, VARHDRSZ, and VARSIZE.
{
bytea *arg;
text *name;
unsigned len,
hlen;
PX_MD *md;
bytea *res;
name = PG_GETARG_TEXT_P(1);
/* will give error if fails */
md = find_provider(name, (PFN) px_find_digest, "Digest", 0);
hlen = px_md_result_size(md);
res = (text *) palloc(hlen + VARHDRSZ);
SET_VARSIZE(res, hlen + VARHDRSZ);
arg = PG_GETARG_BYTEA_P(0);
len = VARSIZE(arg) - VARHDRSZ;
px_md_update(md, (uint8 *) VARDATA(arg), len);
px_md_finish(md, (uint8 *) VARDATA(res));
px_md_free(md);
PG_FREE_IF_COPY(arg, 0);
PG_FREE_IF_COPY(name, 1);
PG_RETURN_BYTEA_P(res);
}
| Datum pg_encrypt | ( | PG_FUNCTION_ARGS | ) |
Definition at line 217 of file pgcrypto.c.
References ereport, errcode(), errmsg(), ERROR, find_provider(), NULL, palloc(), pfree(), PG_FREE_IF_COPY, PG_GETARG_BYTEA_P, PG_GETARG_TEXT_P, PG_RETURN_BYTEA_P, px_combo_encrypt, px_combo_encrypt_len, px_combo_free, px_combo_init, px_find_combo(), px_strerror(), SET_VARSIZE, VARDATA, VARHDRSZ, and VARSIZE.
{
int err;
bytea *data,
*key,
*res;
text *type;
PX_Combo *c;
unsigned dlen,
klen,
rlen;
type = PG_GETARG_TEXT_P(2);
c = find_provider(type, (PFN) px_find_combo, "Cipher", 0);
data = PG_GETARG_BYTEA_P(0);
key = PG_GETARG_BYTEA_P(1);
dlen = VARSIZE(data) - VARHDRSZ;
klen = VARSIZE(key) - VARHDRSZ;
rlen = px_combo_encrypt_len(c, dlen);
res = palloc(VARHDRSZ + rlen);
err = px_combo_init(c, (uint8 *) VARDATA(key), klen, NULL, 0);
if (!err)
err = px_combo_encrypt(c, (uint8 *) VARDATA(data), dlen,
(uint8 *) VARDATA(res), &rlen);
px_combo_free(c);
PG_FREE_IF_COPY(data, 0);
PG_FREE_IF_COPY(key, 1);
PG_FREE_IF_COPY(type, 2);
if (err)
{
pfree(res);
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("encrypt error: %s", px_strerror(err))));
}
SET_VARSIZE(res, VARHDRSZ + rlen);
PG_RETURN_BYTEA_P(res);
}
| Datum pg_encrypt_iv | ( | PG_FUNCTION_ARGS | ) |
Definition at line 314 of file pgcrypto.c.
References ereport, errcode(), errmsg(), ERROR, find_provider(), palloc(), PG_FREE_IF_COPY, PG_GETARG_BYTEA_P, PG_GETARG_TEXT_P, PG_RETURN_BYTEA_P, px_combo_encrypt, px_combo_encrypt_len, px_combo_free, px_combo_init, px_find_combo(), px_strerror(), SET_VARSIZE, VARDATA, VARHDRSZ, and VARSIZE.
{
int err;
bytea *data,
*key,
*iv,
*res;
text *type;
PX_Combo *c;
unsigned dlen,
klen,
ivlen,
rlen;
type = PG_GETARG_TEXT_P(3);
c = find_provider(type, (PFN) px_find_combo, "Cipher", 0);
data = PG_GETARG_BYTEA_P(0);
key = PG_GETARG_BYTEA_P(1);
iv = PG_GETARG_BYTEA_P(2);
dlen = VARSIZE(data) - VARHDRSZ;
klen = VARSIZE(key) - VARHDRSZ;
ivlen = VARSIZE(iv) - VARHDRSZ;
rlen = px_combo_encrypt_len(c, dlen);
res = palloc(VARHDRSZ + rlen);
err = px_combo_init(c, (uint8 *) VARDATA(key), klen,
(uint8 *) VARDATA(iv), ivlen);
if (!err)
err = px_combo_encrypt(c, (uint8 *) VARDATA(data), dlen,
(uint8 *) VARDATA(res), &rlen);
px_combo_free(c);
if (err)
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("encrypt_iv error: %s", px_strerror(err))));
SET_VARSIZE(res, VARHDRSZ + rlen);
PG_FREE_IF_COPY(data, 0);
PG_FREE_IF_COPY(key, 1);
PG_FREE_IF_COPY(iv, 2);
PG_FREE_IF_COPY(type, 3);
PG_RETURN_BYTEA_P(res);
}
| PG_FUNCTION_INFO_V1 | ( | pg_hmac | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_encrypt_iv | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_gen_salt | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_decrypt_iv | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_crypt | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_digest | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_random_bytes | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_gen_salt_rounds | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_decrypt | ) |
| PG_FUNCTION_INFO_V1 | ( | pg_encrypt | ) |
| Datum pg_gen_salt | ( | PG_FUNCTION_ARGS | ) |
Definition at line 133 of file pgcrypto.c.
References buf, cstring_to_text_with_len(), ereport, errcode(), errmsg(), ERROR, PG_FREE_IF_COPY, PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, px_gen_salt(), PX_MAX_SALT_LEN, px_strerror(), and text_to_cstring_buffer().
{
text *arg0 = PG_GETARG_TEXT_PP(0);
int len;
char buf[PX_MAX_SALT_LEN + 1];
text_to_cstring_buffer(arg0, buf, sizeof(buf));
len = px_gen_salt(buf, buf, 0);
if (len < 0)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("gen_salt: %s", px_strerror(len))));
PG_FREE_IF_COPY(arg0, 0);
PG_RETURN_TEXT_P(cstring_to_text_with_len(buf, len));
}
| Datum pg_gen_salt_rounds | ( | PG_FUNCTION_ARGS | ) |
Definition at line 155 of file pgcrypto.c.
References buf, cstring_to_text_with_len(), ereport, errcode(), errmsg(), ERROR, PG_FREE_IF_COPY, PG_GETARG_INT32, PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, px_gen_salt(), PX_MAX_SALT_LEN, px_strerror(), and text_to_cstring_buffer().
{
text *arg0 = PG_GETARG_TEXT_PP(0);
int rounds = PG_GETARG_INT32(1);
int len;
char buf[PX_MAX_SALT_LEN + 1];
text_to_cstring_buffer(arg0, buf, sizeof(buf));
len = px_gen_salt(buf, buf, rounds);
if (len < 0)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("gen_salt: %s", px_strerror(len))));
PG_FREE_IF_COPY(arg0, 0);
PG_RETURN_TEXT_P(cstring_to_text_with_len(buf, len));
}
| Datum pg_hmac | ( | PG_FUNCTION_ARGS | ) |
Definition at line 90 of file pgcrypto.c.
References arg, find_provider(), name, palloc(), PG_FREE_IF_COPY, PG_GETARG_BYTEA_P, PG_GETARG_TEXT_P, PG_RETURN_BYTEA_P, px_find_hmac(), px_hmac_finish, px_hmac_free, px_hmac_init, px_hmac_result_size, px_hmac_update, SET_VARSIZE, VARDATA, VARHDRSZ, and VARSIZE.
{
bytea *arg;
bytea *key;
text *name;
unsigned len,
hlen,
klen;
PX_HMAC *h;
bytea *res;
name = PG_GETARG_TEXT_P(2);
/* will give error if fails */
h = find_provider(name, (PFN) px_find_hmac, "HMAC", 0);
hlen = px_hmac_result_size(h);
res = (text *) palloc(hlen + VARHDRSZ);
SET_VARSIZE(res, hlen + VARHDRSZ);
arg = PG_GETARG_BYTEA_P(0);
key = PG_GETARG_BYTEA_P(1);
len = VARSIZE(arg) - VARHDRSZ;
klen = VARSIZE(key) - VARHDRSZ;
px_hmac_init(h, (uint8 *) VARDATA(key), klen);
px_hmac_update(h, (uint8 *) VARDATA(arg), len);
px_hmac_finish(h, (uint8 *) VARDATA(res));
px_hmac_free(h);
PG_FREE_IF_COPY(arg, 0);
PG_FREE_IF_COPY(key, 1);
PG_FREE_IF_COPY(name, 2);
PG_RETURN_BYTEA_P(res);
}
| Datum pg_random_bytes | ( | PG_FUNCTION_ARGS | ) |
Definition at line 422 of file pgcrypto.c.
References ereport, errcode(), errmsg(), ERROR, palloc(), PG_GETARG_INT32, PG_RETURN_BYTEA_P, px_get_random_bytes(), px_strerror(), SET_VARSIZE, VARDATA, and VARHDRSZ.
{
int err;
int len = PG_GETARG_INT32(0);
bytea *res;
if (len < 1 || len > 1024)
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("Length not in range")));
res = palloc(VARHDRSZ + len);
SET_VARSIZE(res, VARHDRSZ + len);
/* generate result */
err = px_get_random_bytes((uint8 *) VARDATA(res), len);
if (err < 0)
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
errmsg("Random generator error: %s", px_strerror(err))));
PG_RETURN_BYTEA_P(res);
}
Definition at line 43 of file pgcrypto.c.
1.7.1