#include <libcfs/libcfs.h>
#include <lnet/lib-lnet.h>
-static int
-kernel_sock_unlocked_ioctl(struct file *filp, int cmd, unsigned long arg)
-{
- mm_segment_t oldfs = get_fs();
- int err;
-
- set_fs(KERNEL_DS);
- err = filp->f_op->unlocked_ioctl(filp, cmd, arg);
- set_fs(oldfs);
-
- return err;
-}
-
-static int
-lnet_sock_ioctl(int cmd, unsigned long arg)
-{
- struct file *sock_filp;
- struct socket *sock;
- int fd = -1;
- int rc;
-
-#ifdef HAVE_SOCK_CREATE_KERN_USE_NET
- rc = sock_create_kern(&init_net, PF_INET, SOCK_STREAM, 0, &sock);
-#else
- rc = sock_create_kern(PF_INET, SOCK_STREAM, 0, &sock);
-#endif
- if (rc != 0) {
- CERROR("Can't create socket: %d\n", rc);
- return rc;
- }
-
-#if !defined(HAVE_SOCK_ALLOC_FILE) && !defined(HAVE_SOCK_ALLOC_FILE_3ARGS)
- fd = sock_map_fd(sock, 0);
- if (fd < 0) {
- rc = fd;
- sock_release(sock);
- goto out;
- }
- sock_filp = fget(fd);
-#else
-# ifdef HAVE_SOCK_ALLOC_FILE_3ARGS
- sock_filp = sock_alloc_file(sock, 0, NULL);
-# else
- sock_filp = sock_alloc_file(sock, 0);
-# endif
-#endif
- if (IS_ERR(sock_filp)) {
- rc = PTR_ERR(sock_filp);
- sock_release(sock);
- goto out;
- }
-
- rc = kernel_sock_unlocked_ioctl(sock_filp, cmd, arg);
-
- fput(sock_filp);
-out:
- if (fd >= 0)
- sys_close(fd);
- return rc;
-}
-
-int
-lnet_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask)
-{
- struct ifreq ifr;
- int nob;
- int rc;
- __u32 val;
-
- nob = strnlen(name, IFNAMSIZ);
- if (nob == IFNAMSIZ) {
- CERROR("Interface name %s too long\n", name);
- return -EINVAL;
- }
-
- CLASSERT(sizeof(ifr.ifr_name) >= IFNAMSIZ);
-
- if (strlen(name) > sizeof(ifr.ifr_name)-1)
- return -E2BIG;
- strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
-
- rc = lnet_sock_ioctl(SIOCGIFFLAGS, (unsigned long)&ifr);
- if (rc != 0) {
- CERROR("Can't get flags for interface %s\n", name);
- return rc;
- }
-
- if ((ifr.ifr_flags & IFF_UP) == 0) {
- CDEBUG(D_NET, "Interface %s down\n", name);
- *up = 0;
- *ip = *mask = 0;
- return 0;
- }
- *up = 1;
-
- if (strlen(name) > sizeof(ifr.ifr_name)-1)
- return -E2BIG;
- strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
-
- ifr.ifr_addr.sa_family = AF_INET;
- rc = lnet_sock_ioctl(SIOCGIFADDR, (unsigned long)&ifr);
-
- if (rc != 0) {
- CERROR("Can't get IP address for interface %s\n", name);
- return rc;
- }
-
- val = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
- *ip = ntohl(val);
-
- if (strlen(name) > sizeof(ifr.ifr_name)-1)
- return -E2BIG;
- strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
-
- ifr.ifr_addr.sa_family = AF_INET;
- rc = lnet_sock_ioctl(SIOCGIFNETMASK, (unsigned long)&ifr);
- if (rc != 0) {
- CERROR("Can't get netmask for interface %s\n", name);
- return rc;
- }
-
- val = ((struct sockaddr_in *)&ifr.ifr_netmask)->sin_addr.s_addr;
- *mask = ntohl(val);
-
- return 0;
-}
-EXPORT_SYMBOL(lnet_ipif_query);
-
-void
-lnet_ipif_free_enumeration(char **names, int n)
-{
- int i;
-
- LASSERT(n > 0);
-
- for (i = 0; i < n && names[i] != NULL; i++)
- LIBCFS_FREE(names[i], IFNAMSIZ);
-
- LIBCFS_FREE(names, n * sizeof(*names));
-}
-EXPORT_SYMBOL(lnet_ipif_free_enumeration);
-
-int
-lnet_ipif_enumerate(char ***namesp)
-{
- /* Allocate and fill in 'names', returning # interfaces/error */
- char **names;
- int toobig;
- int nalloc;
- int nfound;
- struct ifreq *ifr;
- struct ifconf ifc;
- int rc;
- int nob;
- int i;
-
- nalloc = 16; /* first guess at max interfaces */
- toobig = 0;
- for (;;) {
- if (nalloc * sizeof(*ifr) > PAGE_SIZE) {
- toobig = 1;
- nalloc = PAGE_SIZE / sizeof(*ifr);
- CWARN("Too many interfaces: only enumerating "
- "first %d\n", nalloc);
- }
-
- LIBCFS_ALLOC(ifr, nalloc * sizeof(*ifr));
- if (ifr == NULL) {
- CERROR("ENOMEM enumerating up to %d interfaces\n",
- nalloc);
- rc = -ENOMEM;
- goto out0;
- }
-
- ifc.ifc_buf = (char *)ifr;
- ifc.ifc_len = nalloc * sizeof(*ifr);
-
- rc = lnet_sock_ioctl(SIOCGIFCONF, (unsigned long)&ifc);
- if (rc < 0) {
- CERROR("Error %d enumerating interfaces\n", rc);
- goto out1;
- }
-
- LASSERT(rc == 0);
-
- nfound = ifc.ifc_len/sizeof(*ifr);
- LASSERT(nfound <= nalloc);
-
- if (nfound < nalloc || toobig)
- break;
-
- LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
- nalloc *= 2;
- }
-
- if (nfound == 0)
- goto out1;
-
- LIBCFS_ALLOC(names, nfound * sizeof(*names));
- if (names == NULL) {
- rc = -ENOMEM;
- goto out1;
- }
-
- for (i = 0; i < nfound; i++) {
- nob = strnlen(ifr[i].ifr_name, IFNAMSIZ);
- if (nob == IFNAMSIZ) {
- /* no space for terminating NULL */
- CERROR("interface name %.*s too long (%d max)\n",
- nob, ifr[i].ifr_name, IFNAMSIZ);
- rc = -ENAMETOOLONG;
- goto out2;
- }
-
- LIBCFS_ALLOC(names[i], IFNAMSIZ);
- if (names[i] == NULL) {
- rc = -ENOMEM;
- goto out2;
- }
-
- memcpy(names[i], ifr[i].ifr_name, nob);
- names[i][nob] = 0;
- }
-
- *namesp = names;
- rc = nfound;
-
- out2:
- if (rc < 0)
- lnet_ipif_free_enumeration(names, nfound);
- out1:
- LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
- out0:
- return rc;
-}
-EXPORT_SYMBOL(lnet_ipif_enumerate);
-
int
lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout)
{
lnet_sock_getaddr(struct socket *sock, bool remote, __u32 *ip, int *port)
{
struct sockaddr_in sin;
- int len = sizeof(sin);
- int rc;
+ int rc;
+#ifndef HAVE_KERN_SOCK_GETNAME_2ARGS
+ int len = sizeof(sin);
+#endif
if (remote)
- rc = kernel_getpeername(sock, (struct sockaddr *)&sin, &len);
+ rc = lnet_kernel_getpeername(sock,
+ (struct sockaddr *)&sin, &len);
else
- rc = kernel_getsockname(sock, (struct sockaddr *)&sin, &len);
- if (rc != 0) {
+ rc = lnet_kernel_getsockname(sock,
+ (struct sockaddr *)&sin, &len);
+ if (rc < 0) {
CERROR("Error %d getting sock %s IP/port\n",
rc, remote ? "peer" : "local");
return rc;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff