/* keydb.h - Key database * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, * 2006, 2010 Free Software Foundation, Inc. * * This file is part of GnuPG. * * GnuPG 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 3 of the License, or * (at your option) any later version. * * GnuPG 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef G10_KEYDB_H #define G10_KEYDB_H #include <assuan.h> #include "types.h" #include "util.h" #include "packet.h" #include "cipher.h" /* What qualifies as a certification (rather than a signature?) */ #define IS_CERT(s) (IS_KEY_SIG(s) || IS_UID_SIG(s) || IS_SUBKEY_SIG(s) \ || IS_KEY_REV(s) || IS_UID_REV(s) || IS_SUBKEY_REV(s)) #define IS_SIG(s) (!IS_CERT(s)) #define IS_KEY_SIG(s) ((s)->sig_class == 0x1f) #define IS_UID_SIG(s) (((s)->sig_class & ~3) == 0x10) #define IS_SUBKEY_SIG(s) ((s)->sig_class == 0x18) #define IS_KEY_REV(s) ((s)->sig_class == 0x20) #define IS_UID_REV(s) ((s)->sig_class == 0x30) #define IS_SUBKEY_REV(s) ((s)->sig_class == 0x28) struct getkey_ctx_s; typedef struct getkey_ctx_s *GETKEY_CTX; typedef struct getkey_ctx_s *getkey_ctx_t; /**************** * A Keyblock is all packets which form an entire certificate; * i.e. the public key, certificate, trust packets, user ids, * signatures, and subkey. * * This structure is also used to bind arbitrary packets together. */ struct kbnode_struct { KBNODE next; PACKET *pkt; int flag; int private_flag; ulong recno; /* used while updating the trustdb */ }; #define is_deleted_kbnode(a) ((a)->private_flag & 1) #define is_cloned_kbnode(a) ((a)->private_flag & 2) enum resource_type { rt_UNKNOWN = 0, rt_RING = 1 }; /**************** * A data structre to hold information about the external position * of a keyblock. */ struct keyblock_pos_struct { int resno; /* resource number */ enum resource_type rt; off_t offset; /* position information */ unsigned count; /* length of the keyblock in packets */ iobuf_t fp; /* Used by enum_keyblocks. */ int secret; /* working on a secret keyring */ PACKET *pkt; /* ditto */ int valid; }; typedef struct keyblock_pos_struct KBPOS; /* Structure to hold a couple of public key certificates. */ typedef struct pk_list *PK_LIST; /* Deprecated. */ typedef struct pk_list *pk_list_t; struct pk_list { PK_LIST next; PKT_public_key *pk; int flags; /* flag bit 1==throw_keyid */ }; /* Structure to hold a list of secret key certificates. */ typedef struct sk_list *SK_LIST; struct sk_list { SK_LIST next; PKT_public_key *pk; int mark; /* not used */ }; /* structure to collect all information which can be used to * identify a public key */ typedef struct pubkey_find_info *PUBKEY_FIND_INFO; struct pubkey_find_info { u32 keyid[2]; unsigned nbits; byte pubkey_algo; byte fingerprint[MAX_FINGERPRINT_LEN]; char userid[1]; }; typedef struct keydb_handle *KEYDB_HANDLE; /* Helper type for preference fucntions. */ union pref_hint { int digest_length; }; /*-- keydb.c --*/ /* Flag 1 == force Flag 2 == default */ int keydb_add_resource (const char *url, int flags); KEYDB_HANDLE keydb_new (void); void keydb_release (KEYDB_HANDLE hd); const char *keydb_get_resource_name (KEYDB_HANDLE hd); int keydb_get_keyblock (KEYDB_HANDLE hd, KBNODE *ret_kb); int keydb_update_keyblock (KEYDB_HANDLE hd, KBNODE kb); int keydb_insert_keyblock (KEYDB_HANDLE hd, KBNODE kb); int keydb_delete_keyblock (KEYDB_HANDLE hd); int keydb_locate_writable (KEYDB_HANDLE hd, const char *reserved); void keydb_rebuild_caches (int noisy); int keydb_search_reset (KEYDB_HANDLE hd); #define keydb_search(a,b,c) keydb_search2((a),(b),(c),NULL) int keydb_search2 (KEYDB_HANDLE hd, KEYDB_SEARCH_DESC *desc, size_t ndesc, size_t *descindex); int keydb_search_first (KEYDB_HANDLE hd); int keydb_search_next (KEYDB_HANDLE hd); int keydb_search_kid (KEYDB_HANDLE hd, u32 *kid); int keydb_search_fpr (KEYDB_HANDLE hd, const byte *fpr); /*-- pkclist.c --*/ void show_revocation_reason( PKT_public_key *pk, int mode ); int check_signatures_trust( PKT_signature *sig ); void release_pk_list (PK_LIST pk_list); int build_pk_list (ctrl_t ctrl, strlist_t rcpts, PK_LIST *ret_pk_list, unsigned use); gpg_error_t find_and_check_key (ctrl_t ctrl, const char *name, unsigned int use, int mark_hidden, pk_list_t *pk_list_addr); int algo_available( preftype_t preftype, int algo, const union pref_hint *hint ); int select_algo_from_prefs( PK_LIST pk_list, int preftype, int request, const union pref_hint *hint); int select_mdc_from_pklist (PK_LIST pk_list); void warn_missing_mdc_from_pklist (PK_LIST pk_list); void warn_missing_aes_from_pklist (PK_LIST pk_list); /*-- skclist.c --*/ int random_is_faked (void); void release_sk_list( SK_LIST sk_list ); gpg_error_t build_sk_list (strlist_t locusr, SK_LIST *ret_sk_list, unsigned use); /*-- passphrase.h --*/ unsigned char encode_s2k_iterations (int iterations); assuan_context_t agent_open (int try, const char *orig_codeset); void agent_close (assuan_context_t ctx); int have_static_passphrase(void); void set_passphrase_from_string(const char *pass); void read_passphrase_from_fd( int fd ); void passphrase_clear_cache ( u32 *keyid, const char *cacheid, int algo ); DEK *passphrase_to_dek_ext(u32 *keyid, int pubkey_algo, int cipher_algo, STRING2KEY *s2k, int mode, const char *tryagain_text, const char *custdesc, const char *custprompt, int *canceled); DEK *passphrase_to_dek( u32 *keyid, int pubkey_algo, int cipher_algo, STRING2KEY *s2k, int mode, const char *tryagain_text, int *canceled); void set_next_passphrase( const char *s ); char *get_last_passphrase(void); void next_to_last_passphrase(void); char *gpg_format_keydesc (PKT_public_key *pk, int mode, int escaped); /*-- getkey.c --*/ void cache_public_key( PKT_public_key *pk ); void getkey_disable_caches(void); int get_pubkey( PKT_public_key *pk, u32 *keyid ); int get_pubkey_fast ( PKT_public_key *pk, u32 *keyid ); KBNODE get_pubkeyblock( u32 *keyid ); int get_pubkey_byname (ctrl_t ctrl, GETKEY_CTX *rx, PKT_public_key *pk, const char *name, KBNODE *ret_keyblock, KEYDB_HANDLE *ret_kdbhd, int include_unusable, int no_akl ); int get_pubkey_bynames( GETKEY_CTX *rx, PKT_public_key *pk, strlist_t names, KBNODE *ret_keyblock ); int get_pubkey_next( GETKEY_CTX ctx, PKT_public_key *pk, KBNODE *ret_keyblock ); void get_pubkey_end( GETKEY_CTX ctx ); gpg_error_t get_seckey (PKT_public_key *pk, u32 *keyid); int get_pubkey_byfprint( PKT_public_key *pk, const byte *fprint, size_t fprint_len ); int get_pubkey_byfprint_fast (PKT_public_key *pk, const byte *fprint, size_t fprint_len); int get_keyblock_byfprint( KBNODE *ret_keyblock, const byte *fprint, size_t fprint_len ); int have_secret_key_with_kid (u32 *keyid); gpg_error_t get_seckey_byname (PKT_public_key *pk, const char *name); gpg_error_t get_seckey_byfprint (PKT_public_key *pk, const byte *fprint, size_t fprint_len); gpg_error_t get_seckeyblock_byfprint (kbnode_t *ret_keyblock, const byte *fprint, size_t fprint_len); gpg_error_t getkey_bynames (getkey_ctx_t *retctx, PKT_public_key *pk, strlist_t names, int want_secret, kbnode_t *ret_keyblock); gpg_error_t getkey_byname (getkey_ctx_t *retctx, PKT_public_key *pk, const char *name, int want_secret, kbnode_t *ret_keyblock); gpg_error_t getkey_next (getkey_ctx_t ctx, PKT_public_key *pk, kbnode_t *ret_keyblock); void getkey_end (getkey_ctx_t ctx); gpg_error_t enum_secret_keys (void **context, PKT_public_key *pk); void merge_keys_and_selfsig( KBNODE keyblock ); char*get_user_id_string( u32 *keyid ); char*get_user_id_string_native( u32 *keyid ); char*get_long_user_id_string( u32 *keyid ); char*get_user_id( u32 *keyid, size_t *rn ); char*get_user_id_native( u32 *keyid ); KEYDB_HANDLE get_ctx_handle(GETKEY_CTX ctx); void release_akl(void); int parse_auto_key_locate(char *options); /*-- keyid.c --*/ int pubkey_letter( int algo ); u32 v3_keyid (gcry_mpi_t a, u32 *ki); void hash_public_key( gcry_md_hd_t md, PKT_public_key *pk ); size_t keystrlen(void); const char *keystr(u32 *keyid); const char *keystr_with_sub (u32 *main_kid, u32 *sub_kid); const char *keystr_from_pk(PKT_public_key *pk); const char *keystr_from_pk_with_sub (PKT_public_key *main_pk, PKT_public_key *sub_pk); const char *keystr_from_desc(KEYDB_SEARCH_DESC *desc); u32 keyid_from_pk( PKT_public_key *pk, u32 *keyid ); u32 keyid_from_sig( PKT_signature *sig, u32 *keyid ); u32 keyid_from_fingerprint(const byte *fprint, size_t fprint_len, u32 *keyid); byte *namehash_from_uid(PKT_user_id *uid); unsigned nbits_from_pk( PKT_public_key *pk ); const char *datestr_from_pk( PKT_public_key *pk ); const char *datestr_from_sig( PKT_signature *sig ); const char *expirestr_from_pk( PKT_public_key *pk ); const char *expirestr_from_sig( PKT_signature *sig ); const char *revokestr_from_pk( PKT_public_key *pk ); const char *usagestr_from_pk( PKT_public_key *pk ); const char *colon_strtime (u32 t); const char *colon_datestr_from_pk (PKT_public_key *pk); const char *colon_datestr_from_sig (PKT_signature *sig); const char *colon_expirestr_from_sig (PKT_signature *sig); byte *fingerprint_from_pk( PKT_public_key *pk, byte *buf, size_t *ret_len ); gpg_error_t keygrip_from_pk (PKT_public_key *pk, unsigned char *array); gpg_error_t hexkeygrip_from_pk (PKT_public_key *pk, char **r_grip); /*-- kbnode.c --*/ KBNODE new_kbnode( PACKET *pkt ); KBNODE clone_kbnode( KBNODE node ); void release_kbnode( KBNODE n ); void delete_kbnode( KBNODE node ); void add_kbnode( KBNODE root, KBNODE node ); void insert_kbnode( KBNODE root, KBNODE node, int pkttype ); void move_kbnode( KBNODE *root, KBNODE node, KBNODE where ); void remove_kbnode( KBNODE *root, KBNODE node ); KBNODE find_prev_kbnode( KBNODE root, KBNODE node, int pkttype ); KBNODE find_next_kbnode( KBNODE node, int pkttype ); KBNODE find_kbnode( KBNODE node, int pkttype ); KBNODE walk_kbnode( KBNODE root, KBNODE *context, int all ); void clear_kbnode_flags( KBNODE n ); int commit_kbnode( KBNODE *root ); void dump_kbnode( KBNODE node ); #endif /*G10_KEYDB_H*/