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- Committer: Teddy Hogeborn
- Date: 2014-03-01 10:59:22 UTC
- Revision ID: teddy@recompile.se-20140301105922-xq8gjlvr22187si3
* debian/control (Standards-Version): Updated to "3.9.5".
added
removed
plugins.d/mandos-client.c
55
55
opendir(), DIR */
56
56
#include <sys/stat.h> /* open(), S_ISREG */
57
57
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
58
inet_pton(), connect(),
59
getnameinfo() */
58
inet_pton(), connect() */
60
59
#include <fcntl.h> /* open() */
61
60
#include <dirent.h> /* opendir(), struct dirent, readdir()
62
61
*/
74
73
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
75
74
getuid(), getgid(), seteuid(),
76
75
setgid(), pause(), _exit() */
77
#include <arpa/inet.h> /* inet_pton(), htons() */
76
#include <arpa/inet.h> /* inet_pton(), htons, inet_ntop() */
78
77
#include <iso646.h> /* not, or, and */
79
78
#include <argp.h> /* struct argp_option, error_t, struct
80
79
argp_state, struct argp,
92
91
argz_delete(), argz_append(),
93
92
argz_stringify(), argz_add(),
94
93
argz_count() */
95
#include <netdb.h> /* getnameinfo(), NI_NUMERICHOST,
96
EAI_SYSTEM, gai_strerror() */
97
94
98
95
#ifdef __linux__
99
96
#include <sys/klog.h> /* klogctl() */
201
198
size_t incbuffer(char **buffer, size_t buffer_length,
202
199
size_t buffer_capacity){
203
200
if(buffer_length + BUFFER_SIZE > buffer_capacity){
204
char *new_buf = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
205
if(new_buf == NULL){
206
int old_errno = errno;
207
free(*buffer);
208
errno = old_errno;
209
*buffer = NULL;
201
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
202
if(buffer == NULL){
210
203
return 0;
211
204
}
212
*buffer = new_buf;
213
205
buffer_capacity += BUFFER_SIZE;
214
206
}
215
207
return buffer_capacity;
232
224
perror_plus("strdup");
233
225
return false;
234
226
}
235
ret = clock_gettime(CLOCK_MONOTONIC, &(new_server->last_seen));
236
if(ret == -1){
237
perror_plus("clock_gettime");
238
return false;
239
}
240
227
/* Special case of first server */
241
228
if(*current_server == NULL){
242
229
new_server->next = new_server;
249
236
new_server->prev->next = new_server;
250
237
(*current_server)->prev = new_server;
251
238
}
239
ret = clock_gettime(CLOCK_MONOTONIC, &(*current_server)->last_seen);
240
if(ret == -1){
241
perror_plus("clock_gettime");
242
return false;
243
}
252
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return true;
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245
}
254
246
634
626
int af, mandos_context *mc){
635
627
int ret, tcp_sd = -1;
636
628
ssize_t sret;
637
struct sockaddr_storage to;
629
union {
630
struct sockaddr_in in;
631
struct sockaddr_in6 in6;
632
} to;
638
633
char *buffer = NULL;
639
634
char *decrypted_buffer = NULL;
640
635
size_t buffer_length = 0;
721
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memset(&to, 0, sizeof(to));
723
718
if(af == AF_INET6){
724
((struct sockaddr_in6 *)&to)->sin6_family = (sa_family_t)af;
725
ret = inet_pton(af, ip, &((struct sockaddr_in6 *)&to)->sin6_addr);
719
to.in6.sin6_family = (sa_family_t)af;
720
ret = inet_pton(af, ip, &to.in6.sin6_addr);
726
721
} else { /* IPv4 */
727
((struct sockaddr_in *)&to)->sin_family = (sa_family_t)af;
728
ret = inet_pton(af, ip, &((struct sockaddr_in *)&to)->sin_addr);
722
to.in.sin_family = (sa_family_t)af;
723
ret = inet_pton(af, ip, &to.in.sin_addr);
729
724
}
730
725
if(ret < 0 ){
731
726
int e = errno;
740
735
goto mandos_end;
741
736
}
742
737
if(af == AF_INET6){
743
((struct sockaddr_in6 *)&to)->sin6_port = htons(port);
744
if(IN6_IS_ADDR_LINKLOCAL
745
(&((struct sockaddr_in6 *)&to)->sin6_addr)){
738
to.in6.sin6_port = htons(port);
739
#ifdef __GNUC__
740
#pragma GCC diagnostic push
741
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
742
#endif
743
if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
744
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower */
745
#ifdef __GNUC__
746
#pragma GCC diagnostic pop
747
#endif
746
748
if(if_index == AVAHI_IF_UNSPEC){
747
749
fprintf_plus(stderr, "An IPv6 link-local address is"
748
750
" incomplete without a network interface\n");
750
752
goto mandos_end;
751
753
}
752
754
/* Set the network interface number as scope */
753
((struct sockaddr_in6 *)&to)->sin6_scope_id = (uint32_t)if_index;
755
to.in6.sin6_scope_id = (uint32_t)if_index;
754
756
}
755
757
} else {
756
((struct sockaddr_in *)&to)->sin_port = htons(port);
758
to.in.sin_port = htons(port);
757
759
}
758
760
759
761
if(quit_now){
776
778
}
777
779
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
778
780
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
781
const char *pcret;
779
782
if(af == AF_INET6){
780
ret = getnameinfo((struct sockaddr *)&to,
781
sizeof(struct sockaddr_in6),
782
addrstr, sizeof(addrstr), NULL, 0,
783
NI_NUMERICHOST);
783
pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
784
sizeof(addrstr));
784
785
} else {
785
ret = getnameinfo((struct sockaddr *)&to,
786
sizeof(struct sockaddr_in),
787
addrstr, sizeof(addrstr), NULL, 0,
788
NI_NUMERICHOST);
786
pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
787
sizeof(addrstr));
789
788
}
790
if(ret == EAI_SYSTEM){
791
perror_plus("getnameinfo");
792
} else if(ret != 0) {
793
fprintf_plus(stderr, "getnameinfo: %s", gai_strerror(ret));
794
} else if(strcmp(addrstr, ip) != 0){
795
fprintf_plus(stderr, "Canonical address form: %s\n", addrstr);
789
if(pcret == NULL){
790
perror_plus("inet_ntop");
791
} else {
792
if(strcmp(addrstr, ip) != 0){
793
fprintf_plus(stderr, "Canonical address form: %s\n", addrstr);
794
}
796
795
}
797
796
}
798
797
802
801
}
803
802
804
803
if(af == AF_INET6){
805
ret = connect(tcp_sd, (struct sockaddr *)&to,
806
sizeof(struct sockaddr_in6));
804
ret = connect(tcp_sd, &to.in6, sizeof(to));
807
805
} else {
808
ret = connect(tcp_sd, (struct sockaddr *)&to, /* IPv4 */
809
sizeof(struct sockaddr_in));
806
ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
810
807
}
811
808
if(ret < 0){
812
809
if ((errno != ECONNREFUSED and errno != ENETUNREACH) or debug){
1491
1488
bool run_network_hooks(const char *mode, const char *interface,
1492
1489
const float delay){
1493
1490
struct dirent **direntries;
1491
struct dirent *direntry;
1492
int ret;
1494
1493
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1495
1494
alphasort);
1496
1495
if(numhooks == -1){
1503
1502
perror_plus("scandir");
1504
1503
}
1505
1504
} else {
1506
struct dirent *direntry;
1507
int ret;
1508
1505
int devnull = open("/dev/null", O_RDONLY);
1509
1506
for(int i = 0; i < numhooks; i++){
1510
1507
direntry = direntries[i];
1730
1727
}
1731
1728
1732
1729
error_t take_down_interface(const char *const interface){
1730
int sd = -1;
1733
1731
error_t old_errno = errno;
1732
error_t ret_errno = 0;
1733
int ret, ret_setflags;
1734
1734
struct ifreq network;
1735
1735
unsigned int if_index = if_nametoindex(interface);
1736
1736
if(if_index == 0){
1739
1739
return ENXIO;
1740
1740
}
1741
1741
if(interface_is_up(interface)){
1742
error_t ret_errno = 0;
1743
1742
if(not get_flags(interface, &network) and debug){
1744
1743
ret_errno = errno;
1745
1744
fprintf_plus(stderr, "Failed to get flags for interface "
1748
1747
}
1749
1748
network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
1750
1749
1751
int sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1750
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1752
1751
if(sd < 0){
1753
1752
ret_errno = errno;
1754
1753
perror_plus("socket");
1764
1763
/* Raise priviliges */
1765
1764
raise_privileges();
1766
1765
1767
int ret_setflags = ioctl(sd, SIOCSIFFLAGS, &network);
1766
ret_setflags = ioctl(sd, SIOCSIFFLAGS, &network);
1768
1767
ret_errno = errno;
1769
1768
1770
1769
/* Lower privileges */
1771
1770
lower_privileges();
1772
1771
1773
1772
/* Close the socket */
1774
int ret = (int)TEMP_FAILURE_RETRY(close(sd));
1773
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1775
1774
if(ret == -1){
1776
1775
perror_plus("close");
1777
1776
}
1810
1809
const char *seckey = PATHDIR "/" SECKEY;
1811
1810
const char *pubkey = PATHDIR "/" PUBKEY;
1812
1811
char *interfaces_hooks = NULL;
1812
size_t interfaces_hooks_size = 0;
1813
1813
1814
1814
bool gnutls_initialized = false;
1815
1815
bool gpgme_initialized = false;
2070
2070
goto end;
2071
2071
}
2072
2072
memcpy(interfaces_hooks, mc.interfaces, mc.interfaces_size);
2073
argz_stringify(interfaces_hooks, mc.interfaces_size, (int)',');
2073
interfaces_hooks_size = mc.interfaces_size;
2074
argz_stringify(interfaces_hooks, interfaces_hooks_size,
2075
(int)',');
2074
2076
}
2075
2077
if(not run_network_hooks("start", interfaces_hooks != NULL ?
2076
2078
interfaces_hooks : "", delay)){
2169
2171
ret_errno = argz_add(&mc.interfaces, &mc.interfaces_size,
2170
2172
direntries[i]->d_name);
2171
2173
if(ret_errno != 0){
2172
errno = ret_errno;
2173
2174
perror_plus("argz_add");
2174
2175
continue;
2175
2176
}
2218
2219
ret_errno = argz_add(&interfaces_to_take_down,
2219
2220
&interfaces_to_take_down_size,
2220
2221
interface);
2221
if(ret_errno != 0){
2222
errno = ret_errno;
2223
perror_plus("argz_add");
2224
}
2225
2222
}
2226
2223
}
2227
2224
}
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Version: 2.0.2.dev0