/*
* keydb_keyd.c - Routines to talk to keyd backend.
*
- * Jonathan McDowell <noodles@earth.li>
+ * Copyright 2002-2004,2011 Jonathan McDowell <noodles@earth.li>
*
- * Copyright 2004 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 <errno.h>
* this file are called in order to allow the DB to be initialized ready
* for access.
*/
-void initdb(bool readonly)
+static void keyd_initdb(bool readonly)
{
struct sockaddr_un sock;
- int cmd = KEYD_CMD_UNKNOWN;
- int reply = KEYD_REPLY_UNKNOWN_CMD;
+ uint32_t cmd = KEYD_CMD_UNKNOWN;
+ uint32_t reply = KEYD_REPLY_UNKNOWN_CMD;
ssize_t count;
keyd_fd = socket(PF_UNIX, SOCK_STREAM, 0);
errno);
} else {
count = read(keyd_fd, &reply, sizeof(reply));
- if (count == sizeof(reply)) {
- if (reply == KEYD_REPLY_OK) {
- count = read(keyd_fd, &reply, sizeof(reply));
- logthing(LOGTHING_DEBUG,
- "keyd protocol version %d",
- reply);
- if (reply != keyd_version) {
- logthing(LOGTHING_CRITICAL,
- "Error! keyd protocol version "
- "mismatch. (us = %d, it = %d)",
+ if (count == sizeof(reply) && reply == KEYD_REPLY_OK) {
+ count = read(keyd_fd, &reply, sizeof(reply));
+ if (count != sizeof(reply) || reply != sizeof(reply)) {
+ logthing(LOGTHING_CRITICAL,
+ "Error! Unexpected keyd version "
+ "length: %d != %d",
+ reply, sizeof(reply));
+ exit(EXIT_FAILURE);
+ }
+
+ count = read(keyd_fd, &reply, sizeof(reply));
+ logthing(LOGTHING_DEBUG,
+ "keyd protocol version %d",
+ reply);
+ if (reply != keyd_version) {
+ logthing(LOGTHING_CRITICAL,
+ "Error! keyd protocol version "
+ "mismatch. (us = %d, it = %d)",
keyd_version, reply);
- }
}
}
}
* This function should be called upon program exit to allow the DB to
* cleanup after itself.
*/
-void cleanupdb(void)
+static void keyd_cleanupdb(void)
{
+ uint32_t cmd = KEYD_CMD_CLOSE;
+
+ if (write(keyd_fd, &cmd, sizeof(cmd)) != sizeof(cmd)) {
+ logthing(LOGTHING_CRITICAL,
+ "Couldn't send close cmd: %s (%d)",
+ strerror(errno),
+ errno);
+ }
+
+ if (read(keyd_fd, &cmd, sizeof(cmd)) != sizeof(cmd)) {
+ logthing(LOGTHING_CRITICAL,
+ "Couldn't read close cmd reply: %s (%d)",
+ strerror(errno),
+ errno);
+ } else if (cmd != KEYD_REPLY_OK) {
+ logthing(LOGTHING_CRITICAL,
+ "Got bad reply to KEYD_CMD_CLOSE: %d", cmd);
+ }
+
if (shutdown(keyd_fd, SHUT_RDWR) < 0) {
logthing(LOGTHING_NOTICE, "Error shutting down socket: %d",
errno);
}
+ if (close(keyd_fd) < 0) {
+ logthing(LOGTHING_NOTICE, "Error closing down socket: %d",
+ errno);
+ }
keyd_fd = -1;
return;
* operations on the database to help speed it all up, or if we want
* something to only succeed if all relevant operations are successful.
*/
-bool starttrans(void)
+static bool keyd_starttrans(void)
{
return true;
}
*
* Ends a transaction.
*/
-void endtrans(void)
+static void keyd_endtrans(void)
{
return;
}
*
* TODO: What about keyid collisions? Should we use fingerprint instead?
*/
-int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey,
+static int keyd_fetch_key(uint64_t keyid, struct openpgp_publickey **publickey,
bool intrans)
{
struct buffer_ctx keybuf;
struct openpgp_packet_list *packets = NULL;
- int cmd = KEYD_CMD_GET;
+ uint32_t cmd = KEYD_CMD_GET;
ssize_t bytes = 0;
ssize_t count = 0;
return (count > 0) ? 1 : 0;
}
+/**
+* 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.
+*/
+static int keyd_delete_key(uint64_t keyid, bool intrans)
+{
+ uint32_t cmd = KEYD_CMD_DELETE;
+
+ write(keyd_fd, &cmd, sizeof(cmd));
+ read(keyd_fd, &cmd, sizeof(cmd));
+ if (cmd == KEYD_REPLY_OK) {
+ write(keyd_fd, &keyid, sizeof(keyid));
+ }
+
+ return 0;
+}
+
/**
* store_key - Takes a key and stores it.
* @publickey: A pointer to the public key to store.
* TODO: Do we store multiple keys of the same id? Or only one and replace
* it?
*/
-int store_key(struct openpgp_publickey *publickey, bool intrans, bool update)
+static int keyd_store_key(struct openpgp_publickey *publickey, bool intrans,
+ bool update)
{
struct buffer_ctx keybuf;
struct openpgp_packet_list *packets = NULL;
struct openpgp_packet_list *list_end = NULL;
struct openpgp_publickey *next = NULL;
- int cmd = KEYD_CMD_STORE;
+ uint32_t cmd = KEYD_CMD_STORE;
uint64_t keyid;
keyid = get_keyid(publickey);
if (update) {
- delete_key(keyid, false);
+ keyd_delete_key(keyid, false);
}
write(keyd_fd, &cmd, sizeof(cmd));
return 0;
}
-/**
- * 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, bool intrans)
-{
- int cmd = KEYD_CMD_DELETE;
-
- write(keyd_fd, &cmd, sizeof(cmd));
- read(keyd_fd, &cmd, sizeof(cmd));
- if (cmd == KEYD_REPLY_OK) {
- write(keyd_fd, &keyid, sizeof(keyid));
- }
-
- return 0;
-}
-
/**
* fetch_key_text - Trys to find the keys that contain the supplied text.
* @search: The text to search for.
* This function searches for the supplied text and returns the keys that
* contain it.
*/
-int fetch_key_text(const char *search, struct openpgp_publickey **publickey)
+static int keyd_fetch_key_text(const char *search,
+ struct openpgp_publickey **publickey)
{
struct buffer_ctx keybuf;
struct openpgp_packet_list *packets = NULL;
- int cmd = KEYD_CMD_GETTEXT;
+ uint32_t cmd = KEYD_CMD_GETTEXT;
ssize_t bytes = 0;
ssize_t count = 0;
return 0;
}
+static int keyd_fetch_key_skshash(const struct skshash *hash,
+ struct openpgp_publickey **publickey)
+{
+ struct buffer_ctx keybuf;
+ struct openpgp_packet_list *packets = NULL;
+ uint32_t cmd = KEYD_CMD_GETSKSHASH;
+ ssize_t bytes = 0;
+ ssize_t count = 0;
+
+ write(keyd_fd, &cmd, sizeof(cmd));
+ read(keyd_fd, &cmd, sizeof(cmd));
+ if (cmd == KEYD_REPLY_OK) {
+ write(keyd_fd, hash->hash, sizeof(hash->hash));
+ keybuf.offset = 0;
+ read(keyd_fd, &keybuf.size, sizeof(keybuf.size));
+ if (keybuf.size > 0) {
+ keybuf.buffer = malloc(keybuf.size);
+ bytes = count = 0;
+ logthing(LOGTHING_TRACE,
+ "Getting %d bytes of key data.",
+ keybuf.size);
+ while (bytes >= 0 && count < keybuf.size) {
+ bytes = read(keyd_fd, &keybuf.buffer[count],
+ keybuf.size - count);
+ logthing(LOGTHING_TRACE,
+ "Read %d bytes.", bytes);
+ count += bytes;
+ }
+ read_openpgp_stream(buffer_fetchchar, &keybuf,
+ &packets, 0);
+ parse_keys(packets, publickey);
+ free_packet_list(packets);
+ packets = NULL;
+ free(keybuf.buffer);
+ keybuf.buffer = NULL;
+ keybuf.size = 0;
+ }
+ }
+
+ return (count > 0) ? 1 : 0;
+}
+
+
/**
* getfullkeyid - Maps a 32bit key id to a 64bit one.
* @keyid: The 32bit keyid.
* This function maps a 32bit key id to the full 64bit one. It returns the
* full keyid. If the key isn't found a keyid of 0 is returned.
*/
-uint64_t getfullkeyid(uint64_t keyid)
+static uint64_t keyd_getfullkeyid(uint64_t keyid)
{
- int cmd = KEYD_CMD_GETFULLKEYID;
+ uint32_t cmd = KEYD_CMD_GETFULLKEYID;
write(keyd_fd, &cmd, sizeof(cmd));
read(keyd_fd, &cmd, sizeof(cmd));
if (cmd == KEYD_REPLY_OK) {
write(keyd_fd, &keyid, sizeof(keyid));
+ read(keyd_fd, &cmd, sizeof(cmd));
+ if (cmd != sizeof(keyid)) {
+ return 0;
+ }
read(keyd_fd, &keyid, sizeof(keyid));
}
}
/**
- * dumpdb - dump the key database
- * @filenamebase: The base filename to use for the dump.
+ * iterate_keys - call a function once for each key in the db.
+ * @iterfunc: The function to call.
+ * @ctx: A context pointer
*
- * Dumps the database into one or more files, which contain pure OpenPGP
- * that can be reimported into onak or gpg. filenamebase provides a base
- * file name for the dump; several files may be created, all of which will
- * begin with this string and then have a unique number and a .pgp
- * extension.
+ * 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.
*/
-int dumpdb(char *filenamebase)
+static int keyd_iterate_keys(void (*iterfunc)(void *ctx,
+ struct openpgp_publickey *key), void *ctx)
{
- return 0;
+ struct buffer_ctx keybuf;
+ struct openpgp_packet_list *packets = NULL;
+ struct openpgp_publickey *key = NULL;
+ uint32_t cmd = KEYD_CMD_KEYITER;
+ ssize_t bytes = 0;
+ ssize_t count = 0;
+ int numkeys = 0;
+
+ write(keyd_fd, &cmd, sizeof(cmd));
+ read(keyd_fd, &cmd, sizeof(cmd));
+ if (cmd == KEYD_REPLY_OK) {
+ keybuf.offset = 0;
+ read(keyd_fd, &keybuf.size, sizeof(keybuf.size));
+ while (keybuf.size > 0) {
+ keybuf.buffer = malloc(keybuf.size);
+ bytes = count = 0;
+ logthing(LOGTHING_TRACE,
+ "Getting %d bytes of key data.",
+ keybuf.size);
+ while (bytes >= 0 && count < keybuf.size) {
+ bytes = read(keyd_fd, &keybuf.buffer[count],
+ keybuf.size - count);
+ logthing(LOGTHING_TRACE,
+ "Read %d bytes.", bytes);
+ count += bytes;
+ }
+ read_openpgp_stream(buffer_fetchchar, &keybuf,
+ &packets, 0);
+ parse_keys(packets, &key);
+
+ if (iterfunc != NULL && key != NULL) {
+ iterfunc(ctx, key);
+ }
+
+ free_publickey(key);
+ key = NULL;
+ free_packet_list(packets);
+ packets = NULL;
+ free(keybuf.buffer);
+ keybuf.buffer = NULL;
+ keybuf.size = keybuf.offset = 0;
+
+ numkeys++;
+
+ read(keyd_fd, &keybuf.size, sizeof(keybuf.size));
+ }
+ }
+
+ return numkeys;
}
#define NEED_KEYID2UID 1
#define NEED_GETKEYSIGS 1
#define NEED_UPDATEKEYS 1
#include "keydb.c"
+
+struct dbfuncs keydb_keyd_funcs = {
+ .initdb = keyd_initdb,
+ .cleanupdb = keyd_cleanupdb,
+ .starttrans = keyd_starttrans,
+ .endtrans = keyd_endtrans,
+ .fetch_key = keyd_fetch_key,
+ .fetch_key_text = keyd_fetch_key_text,
+ .fetch_key_skshash = keyd_fetch_key_skshash,
+ .store_key = keyd_store_key,
+ .update_keys = generic_update_keys,
+ .delete_key = keyd_delete_key,
+ .getkeysigs = generic_getkeysigs,
+ .cached_getkeysigs = generic_cached_getkeysigs,
+ .keyid2uid = generic_keyid2uid,
+ .getfullkeyid = keyd_getfullkeyid,
+ .iterate_keys = keyd_iterate_keys,
+};
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