164
157
const char *priority;
166
159
server *current_server;
168
size_t interfaces_size;
169
160
} mandos_context;
171
/* global so signal handler can reach it*/
172
AvahiSimplePoll *simple_poll;
162
/* global context so signal handler can reach it*/
163
mandos_context mc = { .simple_poll = NULL, .server = NULL,
164
.dh_bits = 1024, .priority = "SECURE256"
165
":!CTYPE-X.509:+CTYPE-OPENPGP",
166
.current_server = NULL };
174
168
sig_atomic_t quit_now = 0;
175
169
int signal_received = 0;
177
171
/* Function to use when printing errors */
178
172
void perror_plus(const char *print_text){
180
173
fprintf(stderr, "Mandos plugin %s: ",
181
174
program_invocation_short_name);
183
175
perror(print_text);
186
__attribute__((format (gnu_printf, 2, 3)))
187
178
int fprintf_plus(FILE *stream, const char *format, ...){
189
180
va_start (ap, format);
191
182
TEMP_FAILURE_RETRY(fprintf(stream, "Mandos plugin %s: ",
192
183
program_invocation_short_name));
193
return (int)TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
184
return TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
232
218
perror_plus("strdup");
235
ret = clock_gettime(CLOCK_MONOTONIC, &(new_server->last_seen));
237
perror_plus("clock_gettime");
240
221
/* Special case of first server */
241
if(*current_server == NULL){
222
if (mc.current_server == NULL){
242
223
new_server->next = new_server;
243
224
new_server->prev = new_server;
244
*current_server = new_server;
225
mc.current_server = new_server;
245
226
/* Place the new server last in the list */
247
new_server->next = *current_server;
248
new_server->prev = (*current_server)->prev;
228
new_server->next = mc.current_server;
229
new_server->prev = mc.current_server->prev;
249
230
new_server->prev->next = new_server;
250
(*current_server)->prev = new_server;
231
mc.current_server->prev = new_server;
233
ret = clock_gettime(CLOCK_MONOTONIC, &mc.current_server->last_seen);
235
perror_plus("clock_gettime");
543
529
/* GnuTLS server initialization */
544
ret = gnutls_dh_params_init(&mc->dh_params);
530
ret = gnutls_dh_params_init(&mc.dh_params);
545
531
if(ret != GNUTLS_E_SUCCESS){
546
532
fprintf_plus(stderr, "Error in GnuTLS DH parameter"
547
533
" initialization: %s\n",
548
534
safer_gnutls_strerror(ret));
551
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
537
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
552
538
if(ret != GNUTLS_E_SUCCESS){
553
539
fprintf_plus(stderr, "Error in GnuTLS prime generation: %s\n",
554
540
safer_gnutls_strerror(ret));
558
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
544
gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
564
gnutls_certificate_free_credentials(mc->cred);
550
gnutls_certificate_free_credentials(mc.cred);
565
551
gnutls_global_deinit();
566
gnutls_dh_params_deinit(mc->dh_params);
552
gnutls_dh_params_deinit(mc.dh_params);
570
static int init_gnutls_session(gnutls_session_t *session,
556
static int init_gnutls_session(gnutls_session_t *session){
573
558
/* GnuTLS session creation */
670
/* If the interface is specified and we have a list of interfaces */
671
if(if_index != AVAHI_IF_UNSPEC and mc->interfaces != NULL){
672
/* Check if the interface is one of the interfaces we are using */
675
char *interface = NULL;
676
while((interface=argz_next(mc->interfaces, mc->interfaces_size,
678
if(if_nametoindex(interface) == (unsigned int)if_index){
685
/* This interface does not match any in the list, so we don't
686
connect to the server */
688
char interface[IF_NAMESIZE];
689
if(if_indextoname((unsigned int)if_index, interface) == NULL){
690
perror_plus("if_indextoname");
692
fprintf_plus(stderr, "Skipping server on non-used interface"
694
if_indextoname((unsigned int)if_index,
702
ret = init_gnutls_session(&session, mc);
655
ret = init_gnutls_session(&session);
708
661
fprintf_plus(stderr, "Setting up a TCP connection to %s, port %"
709
PRIuMAX "\n", ip, (uintmax_t)port);
662
PRIu16 "\n", ip, port);
712
665
tcp_sd = socket(pf, SOCK_STREAM, 0);
777
729
if(if_indextoname((unsigned int)if_index, interface) == NULL){
778
730
perror_plus("if_indextoname");
780
fprintf_plus(stderr, "Connection to: %s%%%s, port %" PRIuMAX
781
"\n", ip, interface, (uintmax_t)port);
732
fprintf_plus(stderr, "Connection to: %s%%%s, port %" PRIu16
733
"\n", ip, interface, port);
784
fprintf_plus(stderr, "Connection to: %s, port %" PRIuMAX "\n",
785
ip, (uintmax_t)port);
736
fprintf_plus(stderr, "Connection to: %s, port %" PRIu16 "\n",
787
739
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
788
740
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
789
742
if(af == AF_INET6){
790
ret = getnameinfo((struct sockaddr *)&(to.in6), sizeof(to.in6),
791
addrstr, sizeof(addrstr), NULL, 0,
743
pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
794
ret = getnameinfo((struct sockaddr *)&(to.in), sizeof(to.in),
795
addrstr, sizeof(addrstr), NULL, 0,
746
pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
798
if(ret == EAI_SYSTEM){
799
perror_plus("getnameinfo");
800
} else if(ret != 0) {
801
fprintf_plus(stderr, "getnameinfo: %s", gai_strerror(ret));
802
} else if(strcmp(addrstr, ip) != 0){
803
fprintf_plus(stderr, "Canonical address form: %s\n", addrstr);
750
perror_plus("inet_ntop");
752
if(strcmp(addrstr, ip) != 0){
753
fprintf_plus(stderr, "Canonical address form: %s\n", addrstr);
1080
1025
PRIdMAX ") on port %" PRIu16 "\n", name,
1081
1026
host_name, ip, (intmax_t)interface, port);
1083
int ret = start_mandos_communication(ip, (in_port_t)port,
1085
avahi_proto_to_af(proto),
1028
int ret = start_mandos_communication(ip, port, interface,
1029
avahi_proto_to_af(proto));
1088
avahi_simple_poll_quit(simple_poll);
1031
avahi_simple_poll_quit(mc.simple_poll);
1090
if(not add_server(ip, (in_port_t)port, interface,
1091
avahi_proto_to_af(proto),
1092
&((mandos_context*)mc)->current_server)){
1033
if(not add_server(ip, port, interface,
1034
avahi_proto_to_af(proto))){
1093
1035
fprintf_plus(stderr, "Failed to add server \"%s\" to server"
1094
1036
" list\n", name);
1136
1075
the callback function is called the Avahi server will free the
1137
1076
resolver for us. */
1139
if(avahi_s_service_resolver_new(((mandos_context*)mc)->server,
1140
interface, protocol, name, type,
1141
domain, protocol, 0,
1142
resolve_callback, mc) == NULL)
1078
if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1079
name, type, domain, protocol, 0,
1080
resolve_callback, NULL) == NULL)
1143
1081
fprintf_plus(stderr, "Avahi: Failed to resolve service '%s':"
1145
avahi_strerror(avahi_server_errno
1146
(((mandos_context*)mc)->server)));
1083
avahi_strerror(avahi_server_errno(mc.server)));
1149
1086
case AVAHI_BROWSER_REMOVE:
1269
* This function determines if a network interface is up.
1271
bool interface_is_up(const char *interface){
1273
if(not get_flags(interface, &ifr)){
1275
fprintf_plus(stderr, "Failed to get flags for interface "
1276
"\"%s\"\n", interface);
1281
return (bool)(ifr.ifr_flags & IFF_UP);
1285
* This function determines if a network interface is running
1287
bool interface_is_running(const char *interface){
1289
if(not get_flags(interface, &ifr)){
1291
fprintf_plus(stderr, "Failed to get flags for interface "
1292
"\"%s\"\n", interface);
1297
return (bool)(ifr.ifr_flags & IFF_RUNNING);
1201
* This function determines if a directory entry in /sys/class/net
1202
* corresponds to an acceptable network device which is up.
1203
* (This function is passed to scandir(3) as a filter function.)
1205
int up_interface(const struct dirent *if_entry){
1206
if(if_entry->d_name[0] == '.'){
1211
if(not get_flags(if_entry->d_name, &ifr)){
1213
fprintf_plus(stderr, "Failed to get flags for interface "
1214
"\"%s\"\n", if_entry->d_name);
1219
/* Reject down interfaces */
1220
if(not (ifr.ifr_flags & IFF_UP)){
1222
fprintf_plus(stderr, "Rejecting down interface \"%s\"\n",
1228
/* Reject non-running interfaces */
1229
if(not (ifr.ifr_flags & IFF_RUNNING)){
1231
fprintf_plus(stderr, "Rejecting non-running interface \"%s\"\n",
1237
if(not good_flags(if_entry->d_name, &ifr)){
1300
1243
int notdotentries(const struct dirent *direntry){
1415
1357
if(block_time <= 0){
1416
ret = start_mandos_communication(mc->current_server->ip,
1417
mc->current_server->port,
1418
mc->current_server->if_index,
1419
mc->current_server->af, mc);
1358
ret = start_mandos_communication(mc.current_server->ip,
1359
mc.current_server->port,
1360
mc.current_server->if_index,
1361
mc.current_server->af);
1421
avahi_simple_poll_quit(s);
1363
avahi_simple_poll_quit(mc.simple_poll);
1424
1366
ret = clock_gettime(CLOCK_MONOTONIC,
1425
&mc->current_server->last_seen);
1367
&mc.current_server->last_seen);
1427
1369
perror_plus("clock_gettime");
1430
mc->current_server = mc->current_server->next;
1372
mc.current_server = mc.current_server->next;
1431
1373
block_time = 0; /* Call avahi to find new Mandos
1432
1374
servers, but don't block */
1445
/* Set effective uid to 0, return errno */
1446
error_t raise_privileges(void){
1447
error_t old_errno = errno;
1448
error_t ret_errno = 0;
1449
if(seteuid(0) == -1){
1451
perror_plus("seteuid");
1457
/* Set effective and real user ID to 0. Return errno. */
1458
error_t raise_privileges_permanently(void){
1459
error_t old_errno = errno;
1460
error_t ret_errno = raise_privileges();
1465
if(setuid(0) == -1){
1467
perror_plus("seteuid");
1473
/* Set effective user ID to unprivileged saved user ID */
1474
error_t lower_privileges(void){
1475
error_t old_errno = errno;
1476
error_t ret_errno = 0;
1477
if(seteuid(uid) == -1){
1479
perror_plus("seteuid");
1485
/* Lower privileges permanently */
1486
error_t lower_privileges_permanently(void){
1487
error_t old_errno = errno;
1488
error_t ret_errno = 0;
1489
if(setuid(uid) == -1){
1491
perror_plus("setuid");
1497
1387
bool run_network_hooks(const char *mode, const char *interface,
1498
1388
const float delay){
1499
1389
struct dirent **direntries;
1390
struct dirent *direntry;
1500
1392
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1502
1394
if(numhooks == -1){
1503
if(errno == ENOENT){
1505
fprintf_plus(stderr, "Network hook directory \"%s\" not"
1506
" found\n", hookdir);
1509
perror_plus("scandir");
1395
perror_plus("scandir");
1512
struct dirent *direntry;
1514
1397
int devnull = open("/dev/null", O_RDONLY);
1515
1398
for(int i = 0; i < numhooks; i++){
1516
1399
direntry = direntries[i];
1630
error_t bring_up_interface(const char *const interface,
1633
error_t old_errno = errno;
1634
error_t ret_errno = 0;
1635
int ret, ret_setflags;
1636
struct ifreq network;
1637
unsigned int if_index = if_nametoindex(interface);
1639
fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
1649
if(not interface_is_up(interface)){
1650
if(not get_flags(interface, &network) and debug){
1652
fprintf_plus(stderr, "Failed to get flags for interface "
1653
"\"%s\"\n", interface);
1656
network.ifr_flags |= IFF_UP;
1658
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1661
perror_plus("socket");
1673
fprintf_plus(stderr, "Bringing up interface \"%s\"\n",
1677
/* Raise priviliges */
1681
/* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1682
messages about the network interface to mess up the prompt */
1683
int ret_linux = klogctl(8, NULL, 5);
1684
bool restore_loglevel = true;
1685
if(ret_linux == -1){
1686
restore_loglevel = false;
1687
perror_plus("klogctl");
1689
#endif /* __linux__ */
1690
ret_setflags = ioctl(sd, SIOCSIFFLAGS, &network);
1693
if(restore_loglevel){
1694
ret_linux = klogctl(7, NULL, 0);
1695
if(ret_linux == -1){
1696
perror_plus("klogctl");
1699
#endif /* __linux__ */
1701
/* Lower privileges */
1704
/* Close the socket */
1705
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1707
perror_plus("close");
1710
if(ret_setflags == -1){
1712
perror_plus("ioctl SIOCSIFFLAGS +IFF_UP");
1717
fprintf_plus(stderr, "Interface \"%s\" is already up; good\n",
1721
/* Sleep checking until interface is running.
1722
Check every 0.25s, up to total time of delay */
1723
for(int i=0; i < delay * 4; i++){
1724
if(interface_is_running(interface)){
1727
struct timespec sleeptime = { .tv_nsec = 250000000 };
1728
ret = nanosleep(&sleeptime, NULL);
1729
if(ret == -1 and errno != EINTR){
1730
perror_plus("nanosleep");
1738
error_t take_down_interface(const char *const interface){
1739
error_t old_errno = errno;
1740
struct ifreq network;
1741
unsigned int if_index = if_nametoindex(interface);
1743
fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
1747
if(interface_is_up(interface)){
1748
error_t ret_errno = 0;
1749
if(not get_flags(interface, &network) and debug){
1751
fprintf_plus(stderr, "Failed to get flags for interface "
1752
"\"%s\"\n", interface);
1755
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
1757
int sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1760
perror_plus("socket");
1766
fprintf_plus(stderr, "Taking down interface \"%s\"\n",
1770
/* Raise priviliges */
1773
int ret_setflags = ioctl(sd, SIOCSIFFLAGS, &network);
1776
/* Lower privileges */
1779
/* Close the socket */
1780
int ret = (int)TEMP_FAILURE_RETRY(close(sd));
1782
perror_plus("close");
1785
if(ret_setflags == -1){
1787
perror_plus("ioctl SIOCSIFFLAGS -IFF_UP");
1792
fprintf_plus(stderr, "Interface \"%s\" is already down; odd\n",
1800
1514
int main(int argc, char *argv[]){
1801
mandos_context mc = { .server = NULL, .dh_bits = 1024,
1802
.priority = "SECURE256:!CTYPE-X.509:"
1803
"+CTYPE-OPENPGP", .current_server = NULL,
1804
.interfaces = NULL, .interfaces_size = 0 };
1805
1515
AvahiSServiceBrowser *sb = NULL;
1808
1518
intmax_t tmpmax;
1810
1520
int exitcode = EXIT_SUCCESS;
1811
char *interfaces_to_take_down = NULL;
1812
size_t interfaces_to_take_down_size = 0;
1521
const char *interface = "";
1522
struct ifreq network;
1524
bool take_down_interface = false;
1813
1527
char tempdir[] = "/tmp/mandosXXXXXX";
1814
1528
bool tempdir_created = false;
1815
1529
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
1816
1530
const char *seckey = PATHDIR "/" SECKEY;
1817
1531
const char *pubkey = PATHDIR "/" PUBKEY;
1818
char *interfaces_hooks = NULL;
1820
1533
bool gnutls_initialized = false;
1821
1534
bool gpgme_initialized = false;
2048
1761
/* Lower privileges */
2053
/* Remove invalid interface names (except "none") */
2055
char *interface = NULL;
2056
while((interface = argz_next(mc.interfaces, mc.interfaces_size,
2058
if(strcmp(interface, "none") != 0
2059
and if_nametoindex(interface) == 0){
2060
if(interface[0] != '\0'){
2061
fprintf_plus(stderr, "Not using nonexisting interface"
2062
" \"%s\"\n", interface);
2064
argz_delete(&mc.interfaces, &mc.interfaces_size, interface);
1765
perror_plus("seteuid");
2070
1770
/* Run network hooks */
2072
if(mc.interfaces != NULL){
2073
interfaces_hooks = malloc(mc.interfaces_size);
2074
if(interfaces_hooks == NULL){
2075
perror_plus("malloc");
2078
memcpy(interfaces_hooks, mc.interfaces, mc.interfaces_size);
2079
argz_stringify(interfaces_hooks, mc.interfaces_size, (int)',');
2081
if(not run_network_hooks("start", interfaces_hooks != NULL ?
2082
interfaces_hooks : "", delay)){
1771
if(not run_network_hooks("start", interface, delay)){
2088
1776
avahi_set_log_function(empty_log);
1779
if(interface[0] == '\0'){
1780
struct dirent **direntries;
1781
/* First look for interfaces that are up */
1782
ret = scandir(sys_class_net, &direntries, up_interface,
1785
/* No up interfaces, look for any good interfaces */
1787
ret = scandir(sys_class_net, &direntries, good_interface,
1791
/* Pick the first interface returned */
1792
interface = strdup(direntries[0]->d_name);
1794
fprintf_plus(stderr, "Using interface \"%s\"\n", interface);
1796
if(interface == NULL){
1797
perror_plus("malloc");
1799
exitcode = EXIT_FAILURE;
1805
fprintf_plus(stderr, "Could not find a network interface\n");
1806
exitcode = EXIT_FAILURE;
2091
1811
/* Initialize Avahi early so avahi_simple_poll_quit() can be called
2092
1812
from the signal handler */
2093
1813
/* Initialize the pseudo-RNG for Avahi */
2094
1814
srand((unsigned int) time(NULL));
2095
simple_poll = avahi_simple_poll_new();
2096
if(simple_poll == NULL){
1815
mc.simple_poll = avahi_simple_poll_new();
1816
if(mc.simple_poll == NULL){
2097
1817
fprintf_plus(stderr,
2098
1818
"Avahi: Failed to create simple poll object.\n");
2099
1819
exitcode = EX_UNAVAILABLE;
2166
/* If no interfaces were specified, make a list */
2167
if(mc.interfaces == NULL){
2168
struct dirent **direntries;
2169
/* Look for any good interfaces */
2170
ret = scandir(sys_class_net, &direntries, good_interface,
2173
/* Add all found interfaces to interfaces list */
2174
for(int i = 0; i < ret; ++i){
2175
ret_errno = argz_add(&mc.interfaces, &mc.interfaces_size,
2176
direntries[i]->d_name);
2179
perror_plus("argz_add");
2183
fprintf_plus(stderr, "Will use interface \"%s\"\n",
2184
direntries[i]->d_name);
2190
fprintf_plus(stderr, "Could not find a network interface\n");
2191
exitcode = EXIT_FAILURE;
2196
/* Bring up interfaces which are down, and remove any "none"s */
2198
char *interface = NULL;
2199
while((interface = argz_next(mc.interfaces, mc.interfaces_size,
2201
/* If interface name is "none", stop bringing up interfaces.
2202
Also remove all instances of "none" from the list */
2203
if(strcmp(interface, "none") == 0){
2204
argz_delete(&mc.interfaces, &mc.interfaces_size,
2207
while((interface = argz_next(mc.interfaces,
2208
mc.interfaces_size, interface))){
2209
if(strcmp(interface, "none") == 0){
2210
argz_delete(&mc.interfaces, &mc.interfaces_size,
1886
/* If the interface is down, bring it up */
1887
if(strcmp(interface, "none") != 0){
1888
if_index = (AvahiIfIndex) if_nametoindex(interface);
1890
fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
1891
exitcode = EX_UNAVAILABLE;
1899
/* Re-raise priviliges */
1903
perror_plus("seteuid");
1907
/* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1908
messages about the network interface to mess up the prompt */
1909
ret = klogctl(8, NULL, 5);
1910
bool restore_loglevel = true;
1912
restore_loglevel = false;
1913
perror_plus("klogctl");
1915
#endif /* __linux__ */
1917
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1919
perror_plus("socket");
1920
exitcode = EX_OSERR;
1922
if(restore_loglevel){
1923
ret = klogctl(7, NULL, 0);
1925
perror_plus("klogctl");
1928
#endif /* __linux__ */
1929
/* Lower privileges */
1933
perror_plus("seteuid");
1937
strcpy(network.ifr_name, interface);
1938
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1940
perror_plus("ioctl SIOCGIFFLAGS");
1942
if(restore_loglevel){
1943
ret = klogctl(7, NULL, 0);
1945
perror_plus("klogctl");
1948
#endif /* __linux__ */
1949
exitcode = EX_OSERR;
1950
/* Lower privileges */
1954
perror_plus("seteuid");
1958
if((network.ifr_flags & IFF_UP) == 0){
1959
network.ifr_flags |= IFF_UP;
1960
take_down_interface = true;
1961
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1963
take_down_interface = false;
1964
perror_plus("ioctl SIOCSIFFLAGS +IFF_UP");
1965
exitcode = EX_OSERR;
1967
if(restore_loglevel){
1968
ret = klogctl(7, NULL, 0);
1970
perror_plus("klogctl");
1973
#endif /* __linux__ */
1974
/* Lower privileges */
1978
perror_plus("seteuid");
1983
/* Sleep checking until interface is running.
1984
Check every 0.25s, up to total time of delay */
1985
for(int i=0; i < delay * 4; i++){
1986
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1988
perror_plus("ioctl SIOCGIFFLAGS");
1989
} else if(network.ifr_flags & IFF_RUNNING){
2217
bool interface_was_up = interface_is_up(interface);
2218
ret = bring_up_interface(interface, delay);
2219
if(not interface_was_up){
2222
perror_plus("Failed to bring up interface");
2224
ret_errno = argz_add(&interfaces_to_take_down,
2225
&interfaces_to_take_down_size,
2229
perror_plus("argz_add");
2234
if(debug and (interfaces_to_take_down == NULL)){
2235
fprintf_plus(stderr, "No interfaces were brought up\n");
2239
/* If we only got one interface, explicitly use only that one */
2240
if(argz_count(mc.interfaces, mc.interfaces_size) == 1){
2242
fprintf_plus(stderr, "Using only interface \"%s\"\n",
2245
if_index = (AvahiIfIndex)if_nametoindex(mc.interfaces);
1992
struct timespec sleeptime = { .tv_nsec = 250000000 };
1993
ret = nanosleep(&sleeptime, NULL);
1994
if(ret == -1 and errno != EINTR){
1995
perror_plus("nanosleep");
1998
if(not take_down_interface){
1999
/* We won't need the socket anymore */
2000
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2002
perror_plus("close");
2006
if(restore_loglevel){
2007
/* Restores kernel loglevel to default */
2008
ret = klogctl(7, NULL, 0);
2010
perror_plus("klogctl");
2013
#endif /* __linux__ */
2014
/* Lower privileges */
2016
/* Lower privileges */
2019
perror_plus("seteuid");
2252
ret = init_gnutls_global(pubkey, seckey, &mc);
2027
ret = init_gnutls_global(pubkey, seckey);
2254
2029
fprintf_plus(stderr, "init_gnutls_global failed\n");
2255
2030
exitcode = EX_UNAVAILABLE;
2229
/* Run network hooks */
2230
run_network_hooks("stop", interface, delay);
2458
2232
/* Re-raise priviliges */
2462
/* Run network hooks */
2463
run_network_hooks("stop", interfaces_hooks != NULL ?
2464
interfaces_hooks : "", delay);
2466
/* Take down the network interfaces which were brought up */
2468
char *interface = NULL;
2469
while((interface=argz_next(interfaces_to_take_down,
2470
interfaces_to_take_down_size,
2472
ret_errno = take_down_interface(interface);
2475
perror_plus("Failed to take down interface");
2237
perror_plus("seteuid");
2240
/* Take down the network interface */
2241
if(take_down_interface and geteuid() == 0){
2242
ret = ioctl(sd, SIOCGIFFLAGS, &network);
2244
perror_plus("ioctl SIOCGIFFLAGS");
2245
} else if(network.ifr_flags & IFF_UP){
2246
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
2247
ret = ioctl(sd, SIOCSIFFLAGS, &network);
2249
perror_plus("ioctl SIOCSIFFLAGS -IFF_UP");
2478
if(debug and (interfaces_to_take_down == NULL)){
2479
fprintf_plus(stderr, "No interfaces needed to be taken"
2252
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2254
perror_plus("close");
2484
lower_privileges_permanently();
2487
free(interfaces_to_take_down);
2488
free(interfaces_hooks);
2258
/* Lower privileges permanently */
2262
perror_plus("setuid");
2490
2265
/* Removes the GPGME temp directory and all files inside */
2491
2266
if(tempdir_created){