/*
* Search auth_alg_names for a match, eg:
* "md5" <=> "AUTH_ALGORITHM_HMAC_MD5"
*/
static int aalg_getbyname_esp(const char *const str, int len)
{
int ret=-1;
unsigned num;
if (!str||!*str)
{
goto out;
}
ret=alg_enum_search_prefix(&auth_alg_names,"AUTH_ALGORITHM_HMAC_",str,len);
if (ret>=0)
{
goto out;
}
ret=alg_enum_search_prefix(&auth_alg_names,"AUTH_ALGORITHM_",str,len);
if (ret>=0)
{
goto out;
}
/* Special value for no authentication since zero is already used. */
ret = INT_MAX;
if (!strncasecmp(str, "null", len))
{
goto out;
}
sscanf(str, "id%d%n", &ret, &num);
if (ret >=0 && num!=strlen(str))
{
ret=-1;
}
out:
return ret;
}
static int
modp_getbyname_esp(const char *const str, int len)
{
int ret=-1;
if (!str||!*str)
goto out;
ret=alg_enum_search_prefix(&oakley_group_names,"OAKLEY_GROUP_",str,len);
if (ret>=0) goto out;
ret=alg_enum_search_ppfix(&oakley_group_names, "OAKLEY_GROUP_", " (extension)", str, len);
out:
return ret;
}
/**
* Search oakley_enc_names for a match, eg:
* "3des_cbc" <=> "OAKLEY_3DES_CBC"
*
* @param str String containing ALG name (eg: AES, 3DES)
* @param len Length of ALG (eg: 256,512)
* @return int Registered # of ALG if loaded.
*/
static int
ealg_getbyname_ike(const char *const str, int len)
{
int ret=-1;
if (!str||!*str)
goto out;
ret=alg_enum_search_prefix(&oakley_enc_names,"OAKLEY_",str,len);
if (ret>=0) goto out;
ret=alg_enum_search_ppfix(&oakley_enc_names, "OAKLEY_", "_CBC", str, len);
out:
return ret;
}
static int
ealg_getbyname_esp(const char *const str, int len)
{
int ret=-1;
if (!str||!*str)
goto out;
/* leave special case for eg: "id248" string */
if (strcmp("id", str)==0)
return ESP_MAGIC_ID;
ret=alg_enum_search_prefix(&esp_transformid_names, "ESP_", str, len);
out:
return ret;
}
/**
* Search oakley_hash_names for a match, eg:
* "md5" <=> "OAKLEY_MD5"
* @param str String containing Hash name (eg: MD5, SHA1)
* @param len Length of Hash (eg: 256,512)
* @return int Registered # of Hash ALG if loaded.
*/
static int
aalg_getbyname_ike(const char *const str, int len)
{
int ret=-1;
unsigned num;
if (!str||!*str)
goto out;
ret=alg_enum_search_prefix(&oakley_hash_names,"OAKLEY_",str,len);
if (ret>=0) goto out;
sscanf(str, "id%d%n", &ret, &num);
if (ret >=0 && num!=strlen(str))
ret=-1;
out:
return ret;
}
