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Diffstat (limited to 'src/pluto/alg_info.h')
| -rw-r--r-- | src/pluto/alg_info.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/pluto/alg_info.h b/src/pluto/alg_info.h new file mode 100644 index 000000000..cd2011dcc --- /dev/null +++ b/src/pluto/alg_info.h @@ -0,0 +1,85 @@ +/* Algorithm info parsing and creation functions + * Author: JuanJo Ciarlante <jjo-ipsec@mendoza.gov.ar> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: alg_info.h,v 1.4 2004/09/29 22:39:44 as Exp $ + */ + +#ifndef ALG_INFO_H +#define ALG_INFO_H + +struct esp_info { + u_int8_t transid; /* ESP transform */ + u_int16_t auth; /* AUTH */ + size_t enckeylen; /* keylength for ESP transform */ + size_t authkeylen; /* keylength for AUTH */ + u_int8_t encryptalg; /* normally encryptalg=transid */ + u_int8_t authalg; /* normally authalg=auth+1 */ +}; + +struct ike_info { + u_int16_t ike_ealg; /* high 16 bit nums for reserved */ + u_int8_t ike_halg; + size_t ike_eklen; + size_t ike_hklen; + u_int16_t ike_modp; +}; + +#define ALG_INFO_COMMON \ + int alg_info_cnt; \ + int ref_cnt; \ + unsigned alg_info_flags; \ + unsigned alg_info_protoid + +struct alg_info { + ALG_INFO_COMMON; +}; + +struct alg_info_esp { + ALG_INFO_COMMON; + struct esp_info esp[64]; + int esp_pfsgroup; +}; + +struct alg_info_ike { + ALG_INFO_COMMON; + struct ike_info ike[64]; +}; +#define esp_ealg_id transid +#define esp_aalg_id auth +#define esp_ealg_keylen enckeylen /* bits */ +#define esp_aalg_keylen authkeylen /* bits */ + +/* alg_info_flags bits */ +#define ALG_INFO_F_STRICT 0x01 + +extern int alg_info_esp_aa2sadb(int auth); +extern int alg_info_esp_sadb2aa(int sadb_aalg); +extern void alg_info_free(struct alg_info *alg_info); +extern void alg_info_addref(struct alg_info *alg_info); +extern void alg_info_delref(struct alg_info **alg_info); +extern struct alg_info_esp* alg_info_esp_create_from_str(const char *alg_str + , const char **err_p); +extern struct alg_info_ike* alg_info_ike_create_from_str(const char *alg_str + , const char **err_p); +extern int alg_info_parse(const char *str); +extern int alg_info_snprint(char *buf, int buflen + , struct alg_info *alg_info); +extern int alg_info_snprint_esp(char *buf, int buflen + , struct alg_info_esp *alg_info); +extern int alg_info_snprint_ike(char *buf, int buflen + , struct alg_info_ike *alg_info); +#define ALG_INFO_ESP_FOREACH(ai, ai_esp, i) \ + for (i=(ai)->alg_info_cnt,ai_esp=(ai)->esp; i--; ai_esp++) +#define ALG_INFO_IKE_FOREACH(ai, ai_ike, i) \ + for (i=(ai)->alg_info_cnt,ai_ike=(ai)->ike; i--; ai_ike++) +#endif /* ALG_INFO_H */ |