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sockfs: implement a few more ioctls

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Matheus
2026-04-01 17:06:22 -03:00
parent e34e9e4881
commit e52a69fc83
2 changed files with 49 additions and 38 deletions
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kernel-src/fs/sockfs.c
+43 -37
View File
@@ -100,46 +100,51 @@ int sockfs_setattr(vnode_t *node, vattr_t *attr, int which, cred_t *cred) {
return 0;
}
static int handle_ifreq(unsigned long request, ifreq_t *uifreq, cred_t *cred) {
ifreq_t ifreq;
int e = USERCOPY_POSSIBLY_FROM_USER(&ifreq, uifreq, sizeof(ifreq_t));
if (e)
return e;
netdev_t *netdev = netdev_getdev(ifreq.name);
if (!netdev)
return ENODEV;
switch (request) {
case SIOCSIFADDR:
e = auth_network_check(cred, AUTH_ACTIONS_NETWORK_CONFIGURE, NULL, netdev);
if (e)
return e;
sockaddr_t sockaddr;
e = sock_convertaddress(&sockaddr, &ifreq.addr);
if (e)
return e;
netdev->ip = sockaddr.ipv4addr.addr;
break;
case SIOCGIFHWADDR:
return USERCOPY_POSSIBLY_TO_USER(uifreq->addr.addr, netdev->mac.address, sizeof(mac_t));
case SIOCGIFMTU: {
int mtu = netdev->mtu;
return USERCOPY_POSSIBLY_TO_USER(&uifreq->mtu, &mtu, sizeof(mtu));
}
case SIOCGIFFLAGS: {
short flags = netdev->flags;
return USERCOPY_POSSIBLY_TO_USER(&uifreq->flags, &flags, sizeof(flags));
}
}
return 0;
}
// arg can be in userspace
int sockfs_ioctl(vnode_t *node, unsigned long request, void *arg, int *result, cred_t *cred) {
switch (request) {
case SIOCSIFADDR: {
ifreq_t ifreq;
int e = USERCOPY_POSSIBLY_FROM_USER(&ifreq, arg, sizeof(ifreq_t));
if (e)
return e;
netdev_t *netdev = netdev_getdev(ifreq.name);
if (netdev) {
e = auth_network_check(cred, AUTH_ACTIONS_NETWORK_CONFIGURE, NULL, netdev);
if (e)
return e;
sockaddr_t sockaddr;
e = sock_convertaddress(&sockaddr, &ifreq.addr);
if (e)
return e;
netdev->ip = sockaddr.ipv4addr.addr;
} else {
return ENODEV;
}
break;
}
case SIOCGIFHWADDR: {
ifreq_t *ifreq = arg;
ifreq_t kifreq;
int e = USERCOPY_POSSIBLY_FROM_USER(&kifreq, arg, sizeof(ifreq_t));
if (e)
return e;
netdev_t *netdev = netdev_getdev(kifreq.name);
if (netdev) {
return USERCOPY_POSSIBLY_TO_USER(ifreq->addr.addr, netdev->mac.address, sizeof(mac_t));
} else {
return ENODEV;
}
break;
}
case SIOCSIFADDR:
case SIOCGIFHWADDR:
case SIOCGIFMTU:
case SIOCGIFFLAGS:
return handle_ifreq(request, arg, cred);
case SIOCADDRT: {
abirtentry_t abirtentry;
int e = USERCOPY_POSSIBLY_FROM_USER(&abirtentry, arg, sizeof(abirtentry_t));
@@ -199,6 +204,7 @@ int sockfs_ioctl(vnode_t *node, unsigned long request, void *arg, int *result, c
return USERCOPY_POSSIBLY_TO_USER(arg, &count, sizeof(int));
}
default:
printf("got unknown socket ioctl %lu\n", request);
return ENOTTY;
}
return 0;
kernel-src/include/kernel/abi.h
+6 -1
View File
@@ -135,15 +135,20 @@ typedef struct {
} msghdr_t;
#define IFNAMSIZ 16
#define SIOCGIFFLAGS 0x8913
#define SIOCSIFADDR 0x8916
#define SIOCGIFMTU 0x8921
#define SIOCGIFHWADDR 0x8927
#define SIOCADDRT 0x890b
#define SIOCSIFADDR 0x8916
#define FIONREAD 0x541B
typedef struct {
char name[IFNAMSIZ];
union {
abisockaddr_t addr;
int mtu;
short flags;
};
} ifreq_t;