sven
/
can-utils
mirror of https://github.com/linux-can/can-utils.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

replaced strcpy(if_name, argv[x]) by if_name=if_nametoindex(argv[x]) to avoid overflows caused by long user input.

pull/3/head
Sven Schmitt 2015-06-24 15:33:20 +02:00
parent 47fbe8fec2
commit 83eea54bc7
9 changed files with 27 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
canfdtest.c
View File

@ -312,7 +312,6 @@ static int can_echo_gen(void)
int main(int argc, char *argv[])
{
struct ifreq ifr;
struct sockaddr_can addr;
char *intf_name;
int family = PF_CAN, type = SOCK_RAW, proto = CAN_RAW;
@ -356,9 +355,7 @@ int main(int argc, char *argv[])
}
addr.can_family = family;
strcpy(ifr.ifr_name, intf_name);
ioctl(sockfd, SIOCGIFINDEX, &ifr);
addr.can_ifindex = ifr.ifr_ifindex;
addr.can_ifindex = if_nametoindex(intf_name);
if (bind(sockfd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
perror("bind");

11
cansend.c
View File

@ -94,13 +94,14 @@ int main(int argc, char **argv)
return 1;
}
addr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[1]);
if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
perror("SIOCGIFINDEX");
strncpy(ifr.ifr_name, argv[1], IFNAMSIZ);
ifr.ifr_ifindex = if_nametoindex(ifr.ifr_name);
if (!ifr.ifr_ifindex) {
perror("if_nametoindex");
return 1;
}
addr.can_family = AF_CAN;
addr.can_ifindex = ifr.ifr_ifindex;
if (required_mtu > CAN_MTU) {

8
isotpdump.c
View File

@ -96,8 +96,6 @@ int main(int argc, char **argv)
int timestamp = 0;
int datidx = 0;
unsigned long fflen = 0;
struct ifreq ifr;
int ifindex;
struct timeval tv, last_tv;
unsigned int n_pci;
int opt;
@ -202,12 +200,8 @@ int main(int argc, char **argv)
setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &rfilter, sizeof(rfilter));
strcpy(ifr.ifr_name, argv[optind]);
ioctl(s, SIOCGIFINDEX, &ifr);
ifindex = ifr.ifr_ifindex;
addr.can_family = AF_CAN;
addr.can_ifindex = ifindex;
addr.can_ifindex = if_nametoindex(argv[optind]);
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
perror("bind");

5
isotprecv.c
View File

@ -81,7 +81,6 @@ int main(int argc, char **argv)
{
int s;
struct sockaddr_can addr;
struct ifreq ifr;
static struct can_isotp_options opts;
static struct can_isotp_fc_options fcopts;
static struct can_isotp_ll_options llopts;
@ -232,9 +231,7 @@ int main(int argc, char **argv)
setsockopt(s, SOL_CAN_ISOTP, CAN_ISOTP_RX_STMIN, &force_rx_stmin, sizeof(force_rx_stmin));
addr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[optind]);
ioctl(s, SIOCGIFINDEX, &ifr);
addr.can_ifindex = ifr.ifr_ifindex;
addr.can_ifindex = if_nametoindex(argv[optind]);
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
perror("bind");

5
isotpsend.c
View File

@ -79,7 +79,6 @@ int main(int argc, char **argv)
{
int s;
struct sockaddr_can addr;
struct ifreq ifr;
static struct can_isotp_options opts;
static struct can_isotp_ll_options llopts;
int opt;
@ -224,9 +223,7 @@ int main(int argc, char **argv)
setsockopt(s, SOL_CAN_ISOTP, CAN_ISOTP_TX_STMIN, &force_tx_stmin, sizeof(force_tx_stmin));
addr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[optind]);
ioctl(s, SIOCGIFINDEX, &ifr);
addr.can_ifindex = ifr.ifr_ifindex;
addr.can_ifindex = if_nametoindex(argv[optind]);
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
perror("bind");

7
isotpserver.c
View File

@ -345,12 +345,7 @@ int main(int argc, char **argv)
}
caddr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[optind]);
if (ioctl(sc, SIOCGIFINDEX, &ifr) < 0) {
perror("SIOCGIFINDEX");
exit(1);
}
caddr.can_ifindex = ifr.ifr_ifindex;
caddr.can_ifindex = if_nametoindex(argv[optind]);
if (bind(sc, (struct sockaddr *)&caddr, caddrlen) < 0) {
perror("bind");

9
isotpsniffer.c
View File

@ -271,9 +271,14 @@ int main(int argc, char **argv)
opts.flags |= CAN_ISOTP_LISTEN_MODE;
strncpy(ifr.ifr_name, argv[optind], IFNAMSIZ);
ifr.ifr_ifindex = if_nametoindex(ifr.ifr_name);
if (!ifr.ifr_ifindex) {
perror("if_nametoindex");
return 1;
}
addr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[optind]);
ioctl(s, SIOCGIFINDEX, &ifr);
addr.can_ifindex = ifr.ifr_ifindex;
setsockopt(s, SOL_CAN_ISOTP, CAN_ISOTP_OPTS, &opts, sizeof(opts));

10
isotptun.c
View File

@ -265,9 +265,15 @@ int main(int argc, char **argv)
}
}
strncpy(ifr.ifr_name, argv[optind], IFNAMSIZ);
ifr.ifr_ifindex = if_nametoindex(ifr.ifr_name);
if (!ifr.ifr_ifindex) {
perror("if_nametoindex");
close(s);
exit(1);
}
addr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[optind]);
ioctl(s, SIOCGIFINDEX, &ifr);
addr.can_ifindex = ifr.ifr_ifindex;
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {

9
slcanpty.c
View File

@ -415,7 +415,6 @@ int main(int argc, char **argv)
int s; /* can raw socket */
struct sockaddr_can addr;
struct termios topts;
struct ifreq ifr;
int select_stdin = 0;
int running = 1;
int tstamp = 0;
@ -490,13 +489,7 @@ int main(int argc, char **argv)
}
addr.can_family = AF_CAN;
strcpy(ifr.ifr_name, argv[2]);
if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
perror("SIOCGIFINDEX");
return 1;
}
addr.can_ifindex = ifr.ifr_ifindex;
addr.can_ifindex = if_nametoindex(argv[2]);
/* disable reception of CAN frames until we are opened by 'O' */
setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, NULL, 0);