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Diffstat (limited to 'lib/tun.c')
-rw-r--r--lib/tun.c91
1 files changed, 45 insertions, 46 deletions
diff --git a/lib/tun.c b/lib/tun.c
index 43a02ee..94d92ef 100644
--- a/lib/tun.c
+++ b/lib/tun.c
@@ -16,7 +16,6 @@
*
*/
-#include <syslog.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
@@ -94,10 +93,10 @@ int tun_gifindex(struct tun_t *this, __u32 * index)
strncpy(ifr.ifr_name, this->devname, IFNAMSIZ);
ifr.ifr_name[IFNAMSIZ - 1] = 0; /* Make sure to terminate */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
}
if (ioctl(fd, SIOCGIFINDEX, &ifr)) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "ioctl() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "ioctl() failed");
close(fd);
return -1;
}
@@ -117,10 +116,10 @@ int tun_sifflags(struct tun_t *this, int flags)
strncpy(ifr.ifr_name, this->devname, IFNAMSIZ);
ifr.ifr_name[IFNAMSIZ - 1] = 0; /* Make sure to terminate */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
}
if (ioctl(fd, SIOCSIFFLAGS, &ifr)) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCSIFFLAGS) failed");
close(fd);
return -1;
@@ -162,7 +161,7 @@ int tun_addroute2(struct tun_t *this,
tun_nlattr(&req.n, sizeof(req), RTA_GATEWAY, gateway, 4);
if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"socket() failed");
return -1;
}
@@ -172,7 +171,7 @@ int tun_addroute2(struct tun_t *this,
local.nl_groups = 0;
if (bind(fd, (struct sockaddr*)&local, sizeof(local)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"bind() failed");
close(fd);
return -1;
@@ -180,21 +179,21 @@ int tun_addroute2(struct tun_t *this,
addr_len = sizeof(local);
if (getsockname(fd, (struct sockaddr*)&local, &addr_len) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"getsockname() failed");
close(fd);
return -1;
}
if (addr_len != sizeof(local)) {
- sys_err(LOG_ERR, __FILE__, __LINE__, 0,
+ SYS_ERR(DTUN, LOGL_ERROR, 0,
"Wrong address length %d", addr_len);
close(fd);
return -1;
}
if (local.nl_family != AF_NETLINK) {
- sys_err(LOG_ERR, __FILE__, __LINE__, 0,
+ SYS_ERR(DTUN, LOGL_ERROR, 0,
"Wrong address family %d", local.nl_family);
close(fd);
return -1;
@@ -265,7 +264,7 @@ int tun_addaddr(struct tun_t *this,
tun_nlattr(&req.n, sizeof(req), IFA_LOCAL, dstaddr, sizeof(dstaddr));
if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
return -1;
}
@@ -274,28 +273,28 @@ int tun_addaddr(struct tun_t *this,
local.nl_groups = 0;
if (bind(fd, (struct sockaddr *)&local, sizeof(local)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "bind() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "bind() failed");
close(fd);
return -1;
}
addr_len = sizeof(local);
if (getsockname(fd, (struct sockaddr *)&local, &addr_len) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"getsockname() failed");
close(fd);
return -1;
}
if (addr_len != sizeof(local)) {
- sys_err(LOG_ERR, __FILE__, __LINE__, 0,
+ SYS_ERR(DTUN, LOGL_ERROR, 0,
"Wrong address length %d", addr_len);
close(fd);
return -1;
}
if (local.nl_family != AF_NETLINK) {
- sys_err(LOG_ERR, __FILE__, __LINE__, 0,
+ SYS_ERR(DTUN, LOGL_ERROR, 0,
"Wrong address family %d", local.nl_family);
close(fd);
return -1;
@@ -361,12 +360,12 @@ int tun_addaddr(struct tun_t *this,
/* Create a channel to the NET kernel. */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
return -1;
}
if (ioctl(fd, SIOCAIFADDR, (void *)&areq) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCAIFADDR) failed");
close(fd);
return -1;
@@ -381,7 +380,7 @@ int tun_addaddr(struct tun_t *this,
if (!this->addrs) /* Use ioctl for first addr to make ping work */
return tun_setaddr(this, addr, dstaddr, netmask);
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Setting multiple addresses not possible on Solaris");
return -1;
@@ -417,7 +416,7 @@ int tun_setaddr(struct tun_t *this,
/* Create a channel to the NET kernel. */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
return -1;
}
@@ -427,10 +426,10 @@ int tun_setaddr(struct tun_t *this,
sizeof(*addr));
if (ioctl(fd, SIOCSIFADDR, (void *)&ifr) < 0) {
if (errno != EEXIST) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCSIFADDR) failed");
} else {
- sys_err(LOG_WARNING, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_NOTICE, errno,
"ioctl(SIOCSIFADDR): Address already exists");
}
close(fd);
@@ -443,7 +442,7 @@ int tun_setaddr(struct tun_t *this,
memcpy(&((struct sockaddr_in *)&ifr.ifr_dstaddr)->sin_addr,
dstaddr, sizeof(*dstaddr));
if (ioctl(fd, SIOCSIFDSTADDR, (caddr_t) & ifr) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCSIFDSTADDR) failed");
close(fd);
return -1;
@@ -468,7 +467,7 @@ int tun_setaddr(struct tun_t *this,
#endif
if (ioctl(fd, SIOCSIFNETMASK, (void *)&ifr) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCSIFNETMASK) failed");
close(fd);
return -1;
@@ -510,7 +509,7 @@ int tun_route(struct tun_t *this,
/* Create a channel to the NET kernel. */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
return -1;
}
@@ -525,14 +524,14 @@ int tun_route(struct tun_t *this,
if (delete) {
if (ioctl(fd, SIOCDELRT, (void *)&r) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCDELRT) failed");
close(fd);
return -1;
}
} else {
if (ioctl(fd, SIOCADDRT, (void *)&r) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"ioctl(SIOCADDRT) failed");
close(fd);
return -1;
@@ -554,7 +553,7 @@ int tun_route(struct tun_t *this,
struct rt_msghdr *rtm;
if ((fd = socket(AF_ROUTE, SOCK_RAW, 0)) == -1) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
return -1;
}
@@ -586,7 +585,7 @@ int tun_route(struct tun_t *this,
req.gate.sin_addr.s_addr = gateway->s_addr;
if (write(fd, rtm, rtm->rtm_msglen) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "write() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "write() failed");
close(fd);
return -1;
}
@@ -594,7 +593,7 @@ int tun_route(struct tun_t *this,
return 0;
#elif defined(__sun__)
- sys_err(LOG_WARNING, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_NOTICE, errno,
"Could not set up routing on Solaris. Please add route manually.");
return 0;
@@ -641,7 +640,7 @@ int tun_new(struct tun_t **tun)
#endif
if (!(*tun = calloc(1, sizeof(struct tun_t)))) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "calloc() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "calloc() failed");
return EOF;
}
@@ -652,7 +651,7 @@ int tun_new(struct tun_t **tun)
#if defined(__linux__)
/* Open the actual tun device */
if (((*tun)->fd = open("/dev/net/tun", O_RDWR)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "open() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "open() failed");
return -1;
}
@@ -661,7 +660,7 @@ int tun_new(struct tun_t **tun)
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TUN | IFF_NO_PI; /* Tun device, no packet info */
if (ioctl((*tun)->fd, TUNSETIFF, (void *)&ifr) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "ioctl() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "ioctl() failed");
close((*tun)->fd);
return -1;
}
@@ -683,7 +682,7 @@ int tun_new(struct tun_t **tun)
break;
}
if ((*tun)->fd < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't find tunnel device");
return -1;
}
@@ -702,7 +701,7 @@ int tun_new(struct tun_t **tun)
/* Create a channel to the NET kernel. */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "socket() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed");
return -1;
}
@@ -715,45 +714,45 @@ int tun_new(struct tun_t **tun)
#elif defined(__sun__)
if ((ip_fd = open("/dev/udp", O_RDWR, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't open /dev/udp");
return -1;
}
if (((*tun)->fd = open("/dev/tun", O_RDWR, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't open /dev/tun");
return -1;
}
/* Assign a new PPA and get its unit number. */
if ((ppa = ioctl((*tun)->fd, TUNNEWPPA, -1)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't assign new interface");
return -1;
}
if ((if_fd = open("/dev/tun", O_RDWR, 0)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't open /dev/tun (2)");
return -1;
}
if (ioctl(if_fd, I_PUSH, "ip") < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't push IP module");
return -1;
}
/* Assign ppa according to the unit number returned by tun device */
if (ioctl(if_fd, IF_UNITSEL, (char *)&ppa) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "Can't set PPA %d",
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "Can't set PPA %d",
ppa);
return -1;
}
/* Link the two streams */
if ((muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't link TUN device to IP");
return -1;
}
@@ -769,7 +768,7 @@ int tun_new(struct tun_t **tun)
if (ioctl(ip_fd, SIOCSIFMUXID, &ifr) < 0) {
ioctl(ip_fd, I_PUNLINK, muxid);
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Can't set multiplexor id");
return -1;
}
@@ -793,7 +792,7 @@ int tun_free(struct tun_t *tun)
}
if (close(tun->fd)) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "close() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "close() failed");
}
/* TODO: For solaris we need to unlink streams */
@@ -818,7 +817,7 @@ int tun_decaps(struct tun_t *this)
int status;
if ((status = read(this->fd, buffer, sizeof(buffer))) <= 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "read() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "read() failed");
return -1;
}
@@ -836,7 +835,7 @@ int tun_decaps(struct tun_t *this)
sbuf.maxlen = PACKET_MAX;
sbuf.buf = buffer;
if (getmsg(this->fd, NULL, &sbuf, &f) < 0) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno, "getmsg() failed");
+ SYS_ERR(DTUN, LOGL_ERROR, errno, "getmsg() failed");
return -1;
}
@@ -885,7 +884,7 @@ int tun_runscript(struct tun_t *tun, char *script)
buf[sizeof(buf) - 1] = 0;
rc = system(buf);
if (rc == -1) {
- sys_err(LOG_ERR, __FILE__, __LINE__, errno,
+ SYS_ERR(DTUN, LOGL_ERROR, errno,
"Error executing command %s", buf);
return -1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-24 09:00:52 +0000