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#50 added syslog logging for version and login packets. no-op on windows
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parent
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commit
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@ -7,6 +7,9 @@ CHANGES:
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2009-xx-yy: x.y.z "Boringo"
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- Added initial Windows support, fixes #43.
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- Added length check of autoprobe responses
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- Refactored and added unit tests
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- Added syslog logging for iodined on version and login packets
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2009-01-23: 0.5.0 "iPassed"
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- Fixed segfault in server when sending version reject.
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@ -46,6 +46,7 @@
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#include <sys/uio.h>
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#include <pwd.h>
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#include <netdb.h>
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#include <syslog.h>
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#endif
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#include "common.h"
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@ -93,6 +94,23 @@ sigint(int sig)
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running = 0;
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}
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#ifdef WINDOWS32
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#define LOG_EMERG 0
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#define LOG_ALERT 1
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#define LOG_CRIT 2
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#define LOG_ERR 3
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#define LOG_WARNING 4
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#define LOG_NOTICE 5
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#define LOG_INFO 6
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#define LOG_DEBUG 7
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static void
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syslog(int a, const char *str, ...)
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{
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/* TODO: implement (add to event log), move to common.c */
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;
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}
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#endif
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static int
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check_user_and_ip(int userid, struct query *q)
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{
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@ -318,13 +336,19 @@ handle_null_request(int tun_fd, int dns_fd, struct query *q, int domain_len)
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memcpy(&(users[userid].q), q, sizeof(struct query));
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users[userid].encoder = get_base32_encoder();
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send_version_response(dns_fd, VERSION_ACK, users[userid].seed, userid, q);
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syslog(LOG_INFO, "accepted version for user #%d from %s",
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userid, inet_ntoa(tempin->sin_addr));
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users[userid].q.id = 0;
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} else {
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/* No space for another user */
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send_version_response(dns_fd, VERSION_FULL, created_users, 0, q);
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syslog(LOG_INFO, "dropped user from %s, server full",
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inet_ntoa(((struct sockaddr_in *) &q->from)->sin_addr));
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}
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} else {
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send_version_response(dns_fd, VERSION_NACK, VERSION, 0, q);
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syslog(LOG_INFO, "dropped user from %s, sent bad version %08X",
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inet_ntoa(((struct sockaddr_in *) &q->from)->sin_addr), version);
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}
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return;
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} else if(in[0] == 'L' || in[0] == 'l') {
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@ -334,6 +358,8 @@ handle_null_request(int tun_fd, int dns_fd, struct query *q, int domain_len)
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if (check_user_and_ip(userid, q) != 0) {
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write_dns(dns_fd, q, "BADIP", 5);
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syslog(LOG_WARNING, "dropped login request from user #%d from unexpected source %s",
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userid, inet_ntoa(((struct sockaddr_in *) &q->from)->sin_addr));
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return;
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} else {
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users[userid].last_pkt = time(NULL);
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@ -352,11 +378,14 @@ handle_null_request(int tun_fd, int dns_fd, struct query *q, int domain_len)
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write_dns(dns_fd, q, out, read);
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q->id = 0;
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syslog(LOG_NOTICE, "accepted password from user #%d, given IP %s", userid, tmp[1]);
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free(tmp[1]);
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free(tmp[0]);
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} else {
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write_dns(dns_fd, q, "LNAK", 4);
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syslog(LOG_WARNING, "rejected login request from user #%d from %s, bad password",
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userid, inet_ntoa(((struct sockaddr_in *) &q->from)->sin_addr));
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}
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}
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return;
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@ -911,6 +940,7 @@ version() {
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int
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main(int argc, char **argv)
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{
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extern char *__progname;
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in_addr_t listen_ip;
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#ifndef WINDOWS32
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struct passwd *pw;
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@ -1152,9 +1182,15 @@ main(int argc, char **argv)
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}
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#endif
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}
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#ifndef WINDOWS32
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openlog(__progname, LOG_NOWAIT, LOG_DAEMON);
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#endif
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syslog(LOG_INFO, "started, listening on port %d", port);
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tunnel(tun_fd, dnsd_fd, bind_fd);
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syslog(LOG_INFO, "stopping");
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cleanup3:
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close_dns(bind_fd);
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cleanup2:
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