mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 02:17:35 +00:00
Userland: ifconfig can change the IP address of the default gateway
ioctl can now perform a request for a specific route and change the address of it's default gateway.
This commit is contained in:
parent
45d7ea1b63
commit
0fd5f0e4bd
5 changed files with 129 additions and 42 deletions
|
@ -31,6 +31,7 @@
|
|||
#include <LibCore/ArgsParser.h>
|
||||
#include <LibCore/File.h>
|
||||
#include <net/if.h>
|
||||
#include <net/route.h>
|
||||
#include <netinet/in.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
@ -164,9 +165,27 @@ int main(int argc, char** argv)
|
|||
}
|
||||
|
||||
if (value_gateway) {
|
||||
// ioctl does not support rtentry yet
|
||||
fprintf(stderr, "Changing the gateway is not supported yet\n");
|
||||
return 1;
|
||||
auto address = IPv4Address::from_string(value_gateway);
|
||||
|
||||
int fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
|
||||
if (fd < 0) {
|
||||
perror("socket");
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct rtentry rt;
|
||||
memset(&rt, 0, sizeof(rt));
|
||||
|
||||
rt.rt_dev = const_cast<char*>(ifname.characters());
|
||||
rt.rt_gateway.sa_family = AF_INET;
|
||||
((sockaddr_in&)rt.rt_gateway).sin_addr.s_addr = address.value().to_in_addr_t();
|
||||
rt.rt_flags = RTF_UP | RTF_GATEWAY;
|
||||
|
||||
int rc = ioctl(fd, SIOCADDRT, &rt);
|
||||
if (rc < 0) {
|
||||
perror("ioctl(SIOCADDRT)");
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue