X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/4b8483ae278577a3adc8d84da81d77019704466f..HEAD:/keydb_file.c diff --git a/keydb_file.c b/keydb_file.c index e5cf087..65e71f5 100644 --- a/keydb_file.c +++ b/keydb_file.c @@ -1,13 +1,25 @@ /* * keydb.c - Routines to store and fetch keys. * - * Jonathan McDowell + * Copyright 2002-2004 Jonathan McDowell * - * Copyright 2002 Project Purple + * 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; version 2 of the License. + * + * 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. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include #include +#include #include #include #include @@ -15,53 +27,59 @@ #include #include +#include "charfuncs.h" #include "keydb.h" #include "keyid.h" #include "keystructs.h" #include "ll.h" +#include "log.h" #include "mem.h" +#include "onak-conf.h" #include "parsekey.h" -#define DBDIR "/home/noodles/onak-0.0.1/db" - /** - * keydb_fetchchar - Fetches a char from a file. + * initdb - Initialize the key database. + * + * This is just a no-op for flat file access. */ -static int keydb_fetchchar(void *fd, size_t count, unsigned char *c) +static void file_initdb(bool readonly) { - return !(read( *(int *) fd, c, count)); } /** - * keydb_putchar - Puts a char to a file. + * cleanupdb - De-initialize the key database. + * + * This is just a no-op for flat file access. */ -static int keydb_putchar(void *fd, unsigned char c) +static void file_cleanupdb(void) { - return !(write( *(int *) fd, &c, sizeof(c))); } /** - * initdb - Initialize the key database. + * starttrans - Start a transaction. * * This is just a no-op for flat file access. */ -void initdb(void) +static bool file_starttrans(void) { + return true; } /** - * cleanupdb - De-initialize the key database. + * endtrans - End a transaction. * * This is just a no-op for flat file access. */ -void cleanupdb(void) +static void file_endtrans(void) { + return; } /** * fetch_key - Given a keyid fetch the key from storage. * @keyid: The keyid to fetch. * @publickey: A pointer to a structure to return the key in. + * @intrans: If we're already in a transaction. * * We use the hex representation of the keyid as the filename to fetch the * key from. The key is stored in the file as a binary OpenPGP stream of @@ -69,18 +87,22 @@ void cleanupdb(void) * in and then parse_keys() to parse the packets into a publickey * structure. */ -int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey) +static int file_fetch_key(uint64_t keyid, struct openpgp_publickey **publickey, + bool intrans) { struct openpgp_packet_list *packets = NULL; char keyfile[1024]; int fd = -1; - snprintf(keyfile, 1023, "%s/0x%llX", DBDIR, keyid & 0xFFFFFFFF); + snprintf(keyfile, 1023, "%s/0x%" PRIX64, config.db_dir, + keyid & 0xFFFFFFFF); fd = open(keyfile, O_RDONLY); // | O_SHLOCK); if (fd > -1) { - read_openpgp_stream(keydb_fetchchar, &fd, &packets); + read_openpgp_stream(file_fetchchar, &fd, &packets, 0); parse_keys(packets, publickey); + free_packet_list(packets); + packets = NULL; close(fd); } @@ -90,22 +112,27 @@ int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey) /** * store_key - Takes a key and stores it. * @publickey: A pointer to the public key to store. + * @intrans: If we're already in a transaction. + * @update: If true the key exists and should be updated. * * Again we just use the hex representation of the keyid as the filename * to store the key to. We flatten the public key to a list of OpenPGP * packets and then use write_openpgp_stream() to write the stream out to * the file. */ -int store_key(struct openpgp_publickey *publickey) +static int file_store_key(struct openpgp_publickey *publickey, bool intrans, + bool update) { struct openpgp_packet_list *packets = NULL; struct openpgp_packet_list *list_end = NULL; struct openpgp_publickey *next = NULL; char keyfile[1024]; int fd = -1; + uint64_t keyid; - snprintf(keyfile, 1023, "%s/0x%llX", DBDIR, - get_keyid(publickey) & 0xFFFFFFFF); + get_keyid(publickey, &keyid); + snprintf(keyfile, 1023, "%s/0x%" PRIX64, config.db_dir, + keyid & 0xFFFFFFFF); fd = open(keyfile, O_WRONLY | O_CREAT, 0664); // | O_EXLOCK); if (fd > -1) { @@ -114,8 +141,10 @@ int store_key(struct openpgp_publickey *publickey) flatten_publickey(publickey, &packets, &list_end); publickey -> next = next; - write_openpgp_stream(keydb_putchar, &fd, packets); + write_openpgp_stream(file_putchar, &fd, packets); close(fd); + free_packet_list(packets); + packets = NULL; } return (fd > -1); @@ -124,21 +153,118 @@ int store_key(struct openpgp_publickey *publickey) /** * delete_key - Given a keyid delete the key from storage. * @keyid: The keyid to delete. + * @intrans: If we're already in a transaction. * * This function deletes a public key from whatever storage mechanism we * are using. Returns 0 if the key existed. */ -int delete_key(uint64_t keyid) +static int file_delete_key(uint64_t keyid, bool intrans) { char keyfile[1024]; - snprintf(keyfile, 1023, "%s/0x%llX", DBDIR, + snprintf(keyfile, 1023, "%s/0x%" PRIX64, config.db_dir, keyid & 0xFFFFFFFF); return unlink(keyfile); } +/** + * fetch_key_text - Trys to find the keys that contain the supplied text. + * @search: The text to search for. + * @publickey: A pointer to a structure to return the key in. + * + * This function searches for the supplied text and returns the keys that + * contain it. + * + * TODO: Write for flat file access. Some sort of grep? + */ +static int file_fetch_key_text(const char *search, + struct openpgp_publickey **publickey) +{ + return 0; +} + +/** + * iterate_keys - call a function once for each key in the db. + * @iterfunc: The function to call. + * @ctx: A context pointer + * + * Calls iterfunc once for each key in the database. ctx is passed + * unaltered to iterfunc. This function is intended to aid database dumps + * and statistic calculations. + * + * Returns the number of keys we iterated over. + */ +static int file_iterate_keys(void (*iterfunc)(void *ctx, + struct openpgp_publickey *key), void *ctx) +{ + int numkeys = 0; + struct openpgp_packet_list *packets = NULL; + struct openpgp_publickey *key = NULL; + DIR *dir; + char keyfile[1024]; + int fd = -1; + struct dirent *curfile = NULL; + + dir = opendir(config.db_dir); + + if (dir != NULL) { + while ((curfile = readdir(dir)) != NULL) { + if (curfile->d_name[0] == '0' && + curfile->d_name[1] == 'x') { + snprintf(keyfile, 1023, "%s/%s", + config.db_dir, + curfile->d_name); + fd = open(keyfile, O_RDONLY); + + if (fd > -1) { + read_openpgp_stream(file_fetchchar, + &fd, + &packets, + 0); + parse_keys(packets, &key); + + iterfunc(ctx, key); + + free_publickey(key); + key = NULL; + free_packet_list(packets); + packets = NULL; + close(fd); + } + numkeys++; + } + } + + closedir(dir); + dir = NULL; + } + + return numkeys; +} + /* * Include the basic keydb routines. */ +#define NEED_KEYID2UID 1 +#define NEED_GETKEYSIGS 1 +#define NEED_GETFULLKEYID 1 +#define NEED_UPDATEKEYS 1 #include "keydb.c" + +struct dbfuncs keydb_file_funcs = { + .initdb = file_initdb, + .cleanupdb = file_cleanupdb, + .starttrans = file_starttrans, + .endtrans = file_endtrans, + .fetch_key = file_fetch_key, + .fetch_key_text = file_fetch_key_text, + .store_key = file_store_key, + .update_keys = generic_update_keys, + .delete_key = file_delete_key, + .getkeysigs = generic_getkeysigs, + .cached_getkeysigs = generic_cached_getkeysigs, + .keyid2uid = generic_keyid2uid, + .getfullkeyid = generic_getfullkeyid, + .iterate_keys = file_iterate_keys, +};