diff options
Diffstat (limited to 'contrib/ipfilter/ipsend/lsock.c')
| -rw-r--r-- | contrib/ipfilter/ipsend/lsock.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/contrib/ipfilter/ipsend/lsock.c b/contrib/ipfilter/ipsend/lsock.c deleted file mode 100644 index 7163ea7..0000000 --- a/contrib/ipfilter/ipsend/lsock.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * lsock.c (C) 1995-1998 Darren Reed - * - * See the IPFILTER.LICENCE file for details on licencing. - * - */ -#if !defined(lint) -static const char sccsid[] = "@(#)lsock.c 1.2 1/11/96 (C)1995 Darren Reed"; -static const char rcsid[] = "@(#)$Id: lsock.c,v 2.3.4.1 2006/03/17 13:45:34 darrenr Exp $"; -#endif -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <stddef.h> -#include <pwd.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/param.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <sys/dir.h> -#define __KERNEL__ -#if LINUX >= 0200 -# undef UINT_MAX -# undef INT_MAX -# undef ULONG_MAX -# undef LONG_MAX -# include <linux/notifier.h> -#endif -#include <linux/fs.h> -#if LINUX >= 0200 -#include "linux/netdevice.h" -#include "net/sock.h" -#endif -#undef __KERNEL__ -#include <linux/sched.h> -#include <linux/netdevice.h> -#include <nlist.h> -#include <sys/user.h> -#include <sys/socket.h> -#include <math.h> -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <net/if.h> -#if LINUX < 0200 -#include <net/inet/sock.h> -#endif -#include "ipsend.h" - -int nproc; -struct task_struct *proc; - -#ifndef KMEM -# ifdef _PATH_KMEM -# define KMEM _PATH_KMEM -# endif -#endif -#ifndef KMEM -# define KMEM "/dev/kmem" -#endif -#ifndef KERNEL -# define KERNEL "/System.map" -#endif - -int kmemcpy(buf, pos, n) -char *buf; -void *pos; -int n; -{ - static int kfd = -1; - - if (kfd == -1) - kfd = open(KMEM, O_RDONLY); - - if (lseek(kfd, (off_t)pos, SEEK_SET) == -1) - { - perror("lseek"); - return -1; - } - if (read(kfd, buf, n) == -1) - { - perror("read"); - return -1; - } - return n; -} - -struct nlist names[3] = { - { "_task" }, - { "_nr_tasks" }, - { NULL } - }; - -struct task_struct *getproc() -{ - struct task_struct *p, **pp; - void *v; - pid_t pid = getpid(); - int siz, n; - - n = nlist(KERNEL, names); - if (n != 0) - { - fprintf(stderr, "nlist(%#x) == %d\n", names, n); - return NULL; - } - if (KMCPY(&nproc, names[1].n_value, sizeof(nproc)) == -1) - { - fprintf(stderr, "read nproc (%#x)\n", names[1].n_value); - return NULL; - } - siz = nproc * sizeof(struct task_struct *); - if (KMCPY(&v, names[0].n_value, sizeof(v)) == -1) - { - fprintf(stderr, "read(%#x,%#x,%d) proc\n", - names[0].n_value, &v, sizeof(v)); - return NULL; - } - pp = (struct task_struct **)malloc(siz); - if (KMCPY(pp, v, siz) == -1) - { - fprintf(stderr, "read(%#x,%#x,%d) proc\n", - v, pp, siz); - return NULL; - } - proc = (struct task_struct *)malloc(siz); - for (n = 0; n < NR_TASKS; n++) - { - if (KMCPY((proc + n), pp[n], sizeof(*proc)) == -1) - { - fprintf(stderr, "read(%#x,%#x,%d) proc\n", - pp[n], proc + n, sizeof(*proc)); - return NULL; - } - } - - p = proc; - - for (n = NR_TASKS; n; n--, p++) - if (p->pid == pid) - break; - if (!n) - return NULL; - - return p; -} - - -struct sock *find_tcp(fd, ti) -int fd; -struct tcpiphdr *ti; -{ - struct sock *s; - struct inode *i; - struct files_struct *fs; - struct task_struct *p; - struct file *f, **o; - - if (!(p = getproc())) - return NULL; - - fs = p->files; - o = (struct file **)calloc(1, sizeof(*o) * (fs->count + 1)); - if (KMCPY(o, fs->fd, (fs->count + 1) * sizeof(*o)) == -1) - { - fprintf(stderr, "read(%#x,%#x,%d) - fd - failed\n", - fs->fd, o, sizeof(*o)); - return NULL; - } - f = (struct file *)calloc(1, sizeof(*f)); - if (KMCPY(f, o[fd], sizeof(*f)) == -1) - { - fprintf(stderr, "read(%#x,%#x,%d) - o[fd] - failed\n", - o[fd], f, sizeof(*f)); - return NULL; - } - - i = (struct inode *)calloc(1, sizeof(*i)); - if (KMCPY(i, f->f_inode, sizeof(*i)) == -1) - { - fprintf(stderr, "read(%#x,%#x,%d) - f_inode - failed\n", - f->f_inode, i, sizeof(*i)); - return NULL; - } - return i->u.socket_i.data; -} - -int do_socket(dev, mtu, ti, gwip) -char *dev; -int mtu; -struct tcpiphdr *ti; -struct in_addr gwip; -{ - struct sockaddr_in rsin, lsin; - struct sock *s, sk; - int fd, nfd, len; - - printf("Dest. Port: %d\n", ti->ti_dport); - - fd = socket(AF_INET, SOCK_STREAM, 0); - if (fd == -1) - { - perror("socket"); - return -1; - } - - if (fcntl(fd, F_SETFL, FNDELAY) == -1) - { - perror("fcntl"); - return -1; - } - - bzero((char *)&lsin, sizeof(lsin)); - lsin.sin_family = AF_INET; - bcopy((char *)&ti->ti_src, (char *)&lsin.sin_addr, - sizeof(struct in_addr)); - if (bind(fd, (struct sockaddr *)&lsin, sizeof(lsin)) == -1) - { - perror("bind"); - return -1; - } - len = sizeof(lsin); - (void) getsockname(fd, (struct sockaddr *)&lsin, &len); - ti->ti_sport = lsin.sin_port; - printf("sport %d\n", ntohs(lsin.sin_port)); - nfd = initdevice(dev, 0); - if (nfd == -1) - return -1; - - if (!(s = find_tcp(fd, ti))) - return -1; - - bzero((char *)&rsin, sizeof(rsin)); - rsin.sin_family = AF_INET; - bcopy((char *)&ti->ti_dst, (char *)&rsin.sin_addr, - sizeof(struct in_addr)); - rsin.sin_port = ti->ti_dport; - if (connect(fd, (struct sockaddr *)&rsin, sizeof(rsin)) == -1 && - errno != EINPROGRESS) - { - perror("connect"); - return -1; - } - KMCPY(&sk, s, sizeof(sk)); - ti->ti_win = sk.window; - ti->ti_seq = sk.sent_seq - 1; - ti->ti_ack = sk.rcv_ack_seq; - ti->ti_flags = TH_SYN; - - if (send_tcp(nfd, mtu, (ip_t *)ti, gwip) == -1) - return -1; - (void)write(fd, "Hello World\n", 12); - sleep(2); - close(fd); - return 0; -} |
