GitLab/ocserv
1
0
Fork 0
mirror of https://gitlab.com/openconnect/ocserv.git synced 2026-02-10 16:57:00 +08:00
Code Issues Packages Projects Releases Wiki Activity

tun: be more verbose in bsd tun device creation errors

Browse Source 
Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
This commit is contained in:
Nikos Mavrogiannopoulos
2017-03-30 12:06:12 +02:00
parent 37f8ebc8c9
commit cf74746fb7
1 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/tun.c
View File

@@ -445,6 +445,8 @@ static int bsd_open_tun(main_server_st * s)
fd = open("/dev/tun", O_RDWR);
if (fd == -1) {
/* try iterating */
e = errno;
mslog(s, NULL, LOG_DEBUG, "cannot open /dev/tun; falling back to iteration: %s", strerror(e));
for (unit_nr = 0; unit_nr < 255; unit_nr++) {
snprintf(tun_name, sizeof(tun_name), "/dev/tun%d", unit_nr);
fd = open(tun_name, O_RDWR);
@@ -452,8 +454,11 @@ static int bsd_open_tun(main_server_st * s)
if (fd == -1) {
/* cannot open tunXX, try creating it */
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0)
if (sock < 0) {
e = errno;
mslog(s, NULL, LOG_ERR, "cannot create tun socket: %s", strerror(e));
return -1;
}
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, tun_name + 5, sizeof(ifr.ifr_name) - 1);
@@ -519,7 +524,6 @@ static int bsd_open_tun(main_server_st * s)
}
return fd;
}
#endif