2 * keydb.c - Routines to store and fetch keys.
4 * Jonathan McDowell <noodles@earth.li>
6 * Copyright 2002-2004 Project Purple
19 #include "charfuncs.h"
22 #include "keystructs.h"
26 #include "onak-conf.h"
30 * initdb - Initialize the key database.
32 * This is just a no-op for flat file access.
34 static void file_initdb(bool readonly)
39 * cleanupdb - De-initialize the key database.
41 * This is just a no-op for flat file access.
43 static void file_cleanupdb(void)
48 * starttrans - Start a transaction.
50 * This is just a no-op for flat file access.
52 static bool file_starttrans(void)
58 * endtrans - End a transaction.
60 * This is just a no-op for flat file access.
62 static void file_endtrans(void)
68 * fetch_key - Given a keyid fetch the key from storage.
69 * @keyid: The keyid to fetch.
70 * @publickey: A pointer to a structure to return the key in.
71 * @intrans: If we're already in a transaction.
73 * We use the hex representation of the keyid as the filename to fetch the
74 * key from. The key is stored in the file as a binary OpenPGP stream of
75 * packets, so we can just use read_openpgp_stream() to read the packets
76 * in and then parse_keys() to parse the packets into a publickey
79 static int file_fetch_key(uint64_t keyid, struct openpgp_publickey **publickey,
82 struct openpgp_packet_list *packets = NULL;
86 snprintf(keyfile, 1023, "%s/0x%llX", config.db_dir,
88 fd = open(keyfile, O_RDONLY); // | O_SHLOCK);
91 read_openpgp_stream(file_fetchchar, &fd, &packets, 0);
92 parse_keys(packets, publickey);
93 free_packet_list(packets);
102 * store_key - Takes a key and stores it.
103 * @publickey: A pointer to the public key to store.
104 * @intrans: If we're already in a transaction.
105 * @update: If true the key exists and should be updated.
107 * Again we just use the hex representation of the keyid as the filename
108 * to store the key to. We flatten the public key to a list of OpenPGP
109 * packets and then use write_openpgp_stream() to write the stream out to
112 static int file_store_key(struct openpgp_publickey *publickey, bool intrans,
115 struct openpgp_packet_list *packets = NULL;
116 struct openpgp_packet_list *list_end = NULL;
117 struct openpgp_publickey *next = NULL;
121 snprintf(keyfile, 1023, "%s/0x%llX", config.db_dir,
122 get_keyid(publickey) & 0xFFFFFFFF);
123 fd = open(keyfile, O_WRONLY | O_CREAT, 0664); // | O_EXLOCK);
126 next = publickey -> next;
127 publickey -> next = NULL;
128 flatten_publickey(publickey, &packets, &list_end);
129 publickey -> next = next;
131 write_openpgp_stream(file_putchar, &fd, packets);
133 free_packet_list(packets);
141 * delete_key - Given a keyid delete the key from storage.
142 * @keyid: The keyid to delete.
143 * @intrans: If we're already in a transaction.
145 * This function deletes a public key from whatever storage mechanism we
146 * are using. Returns 0 if the key existed.
148 static int file_delete_key(uint64_t keyid, bool intrans)
152 snprintf(keyfile, 1023, "%s/0x%llX", config.db_dir,
155 return unlink(keyfile);
159 * fetch_key_text - Trys to find the keys that contain the supplied text.
160 * @search: The text to search for.
161 * @publickey: A pointer to a structure to return the key in.
163 * This function searches for the supplied text and returns the keys that
166 * TODO: Write for flat file access. Some sort of grep?
168 static int file_fetch_key_text(const char *search,
169 struct openpgp_publickey **publickey)
175 * iterate_keys - call a function once for each key in the db.
176 * @iterfunc: The function to call.
177 * @ctx: A context pointer
179 * Calls iterfunc once for each key in the database. ctx is passed
180 * unaltered to iterfunc. This function is intended to aid database dumps
181 * and statistic calculations.
183 * Returns the number of keys we iterated over.
185 static int file_iterate_keys(void (*iterfunc)(void *ctx,
186 struct openpgp_publickey *key), void *ctx)
189 struct openpgp_packet_list *packets = NULL;
190 struct openpgp_publickey *key = NULL;
194 struct dirent *curfile = NULL;
196 dir = opendir(config.db_dir);
199 while ((curfile = readdir(dir)) != NULL) {
200 if (curfile->d_name[0] == '0' &&
201 curfile->d_name[1] == 'x') {
202 snprintf(keyfile, 1023, "%s/%s",
205 fd = open(keyfile, O_RDONLY);
208 read_openpgp_stream(file_fetchchar,
212 parse_keys(packets, &key);
218 free_packet_list(packets);
234 * Include the basic keydb routines.
236 #define NEED_KEYID2UID 1
237 #define NEED_GETKEYSIGS 1
238 #define NEED_GETFULLKEYID 1
239 #define NEED_UPDATEKEYS 1
242 struct dbfuncs keydb_file_funcs = {
243 .initdb = file_initdb,
244 .cleanupdb = file_cleanupdb,
245 .starttrans = file_starttrans,
246 .endtrans = file_endtrans,
247 .fetch_key = file_fetch_key,
248 .fetch_key_text = file_fetch_key_text,
249 .store_key = file_store_key,
250 .update_keys = generic_update_keys,
251 .delete_key = file_delete_key,
252 .getkeysigs = generic_getkeysigs,
253 .cached_getkeysigs = generic_cached_getkeysigs,
254 .keyid2uid = generic_keyid2uid,
255 .getfullkeyid = generic_getfullkeyid,
256 .iterate_keys = file_iterate_keys,