new layout - make room for slice-space stuff

[vsys-scripts.git] / support / tunalloc.c

diff --git a/support/tunalloc.c b/support/tunalloc.c
deleted file mode 100644 (file)
index 6adcf24..0000000
--- a/support/tunalloc.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/* Slice-side code to allocate tuntap interface in root slice
- * Based on bmsocket.c
- *  Thom Haddow - 08/10/09
- *
- * Call tun_alloc() with IFFTUN or IFFTAP as an argument to get back fd to
- * new tuntap interface. Interface name can be acquired via TUNGETIFF ioctl.
- */
-
-#include <sys/un.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/socket.h>
-#include <linux/if.h>
-#include <linux/if_tun.h>
-
-#define VSYS_TUNTAP "/vsys/fd_tuntap.control"
-
-/* Reads vif FD from "fd", writes interface name to vif_name, and returns vif FD.
- * vif_name should be IFNAMSIZ chars long. */
-int receive_vif_fd(int fd, char *vif_name)
-{
-       struct msghdr msg;
-       struct iovec iov;
-       int rv;
-       size_t ccmsg[CMSG_SPACE(sizeof(int)) / sizeof(size_t)];
-       struct cmsghdr *cmsg;
-
-    /* Use IOV to read interface name */
-       iov.iov_base = vif_name;
-       iov.iov_len = IFNAMSIZ;
-
-       msg.msg_name = 0;
-       msg.msg_namelen = 0;
-       msg.msg_iov = &iov;
-       msg.msg_iovlen = 1;
-       /* old BSD implementations should use msg_accrights instead of
-        * msg_control; the interface is different. */
-       msg.msg_control = ccmsg;
-       msg.msg_controllen = sizeof(ccmsg);
-
-       while(((rv = recvmsg(fd, &msg, 0)) == -1) && errno == EINTR);
-       if (rv == -1) {
-               perror("recvmsg");
-               return -1;
-       }
-       if(!rv) {
-               /* EOF */
-               return -1;
-       }
-
-       cmsg = CMSG_FIRSTHDR(&msg);
-       if (!cmsg->cmsg_type == SCM_RIGHTS) {
-               fprintf(stderr, "got control message of unknown type %d\n",
-                       cmsg->cmsg_type);
-               return -1;
-       }
-       return *(int*)CMSG_DATA(cmsg);
-}
-
-
-int tun_alloc(int iftype, char *if_name)
-{
-    int control_fd;
-    struct sockaddr_un addr;
-    int remotefd;
-
-    control_fd = socket(AF_UNIX, SOCK_STREAM, 0);
-    if (control_fd == -1) {
-        perror("Could not create UNIX socket\n");
-        exit(-1);
-    }
-
-    memset(&addr, 0, sizeof(struct sockaddr_un));
-    /* Clear structure */
-    addr.sun_family = AF_UNIX;
-    strncpy(addr.sun_path, VSYS_TUNTAP,
-            sizeof(addr.sun_path) - 1);
-
-    if (connect(control_fd, (struct sockaddr *) &addr,
-                sizeof(struct sockaddr_un)) == -1) {
-        perror("Could not connect to Vsys control socket");
-        exit(-1);
-    }
-
-    /* passing type param */
-    if (send(control_fd, &iftype, sizeof(iftype), 0) != sizeof(iftype)) {
-        perror("Could not send paramater to Vsys control socket");
-        exit(-1);
-    }
-
-    remotefd = receive_vif_fd(control_fd, if_name);
-    return remotefd;
-}