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MINOR: stktable: add stkey_to_smp() helper

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reverse operation for smp_to_stkey(): fills input <smp> from a
stktable_key struct.

Returns 1 on success and 0 on failure.
This commit is contained in:
Aurelien DARRAGON 2024-12-30 19:26:44 +01:00
parent b59d1fd911
commit df9c2ef2c3
1 changed files with 43 additions and 0 deletions
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43
src/stick_table.c
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@ -1520,6 +1520,49 @@ struct stktable_key *smp_to_stkey(struct sample *smp, struct stktable *t)
return &static_table_key;
}
/* reverse operation for smp_to_stkey(): fills input <smp> with content of
* <key>
* smp_make_safe() may be applied to smp before returning to ensure it can be
* used even if the key is no longer available upon return.
* Returns 1 on success and 0 on failure
*/
int stkey_to_smp(struct sample *smp, struct stktable_key *key, int key_type)
{
smp->data.type = key_type;
smp->flags = 0;
switch (key_type) {
case SMP_T_IPV4:
memcpy(&smp->data.u.ipv4, static_table_key.key, sizeof(struct in_addr));
break;
case SMP_T_IPV6:
memcpy(&smp->data.u.ipv6, static_table_key.key, sizeof(struct in6_addr));
break;
case SMP_T_SINT:
/* The stick table require a 32bit unsigned int, "sint" is a
* signed 64 it, so we can convert it inplace.
*/
smp->data.u.sint = *(unsigned int *)static_table_key.key;
break;
case SMP_T_STR:
case SMP_T_BIN:
smp->data.u.str.area = static_table_key.key;
smp->data.u.str.data = static_table_key.key_len;
smp->flags = SMP_F_CONST;
if (!smp_make_safe(smp))
return 0;
break;
default: /* impossible case. */
return 0;
}
return 1;
}
/*
* Process a fetch + format conversion as defined by the sample expression <expr>
* on request or response considering the <opt> parameter. Returns either NULL if