diff options
Diffstat (limited to 'caputils/capture-pcap-util-unix.c')
-rw-r--r-- | caputils/capture-pcap-util-unix.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/caputils/capture-pcap-util-unix.c b/caputils/capture-pcap-util-unix.c index d827319819..9ad2296fbc 100644 --- a/caputils/capture-pcap-util-unix.c +++ b/caputils/capture-pcap-util-unix.c @@ -22,38 +22,6 @@ #include <dlfcn.h> #endif -#ifndef HAVE_PCAP_FINDALLDEVS - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> -#include <errno.h> - -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#ifdef HAVE_SYS_SOCKET_H -#include <sys/socket.h> -#endif - -#ifdef HAVE_SYS_IOCTL_H -#include <sys/ioctl.h> -#endif - -/* - * Keep Digital UNIX happy when including <net/if.h>. - */ -struct mbuf; -struct rtentry; -#include <net/if.h> - -#ifdef HAVE_SYS_SOCKIO_H -# include <sys/sockio.h> -#endif - -#endif /* HAVE_PCAP_FINDALLDEVS */ - #ifdef HAVE_LIBCAP # include <sys/capability.h> #endif @@ -93,231 +61,11 @@ get_remote_interface_list(const char *hostname, const char *port, } #endif -#ifdef HAVE_PCAP_FINDALLDEVS GList * get_interface_list(int *err, char **err_str) { return get_interface_list_findalldevs(err, err_str); } -#else /* HAVE_PCAP_FINDALLDEVS */ -struct search_user_data { - char *name; - if_info_t *if_info; -}; - -static void -search_for_if_cb(gpointer data, gpointer user_data) -{ - struct search_user_data *search_user_data = (struct search_user_data*)user_data; - if_info_t *if_info = (if_info_t *)data; - - if (strcmp(if_info->name, search_user_data->name) == 0) - search_user_data->if_info = if_info; -} - -GList * -get_interface_list(cap_device_open_err *err, char **err_str) -{ - GList *il = NULL; - gint nonloopback_pos = 0; - struct ifreq *ifr, *last; - struct ifconf ifc; - struct ifreq ifrflags; - int sock = socket(AF_INET, SOCK_DGRAM, 0); - struct search_user_data user_data; - pcap_t *pch; - int len, lastlen; - char *buf; - if_info_t *if_info; - char errbuf[PCAP_ERRBUF_SIZE]; - gboolean loopback; - - if (sock < 0) { - *err = CANT_GET_INTERFACE_LIST; - if (err_str != NULL) { - *err_str = g_strdup_printf( - "Can't get list of interfaces: error opening socket: %s", - g_strerror(errno)); - } - return NULL; - } - - /* - * This code came from: W. Richard Stevens: "UNIX Network Programming", - * Networking APIs: Sockets and XTI, Vol 1, page 434. - */ - lastlen = 0; - len = 100 * sizeof(struct ifreq); - for ( ; ; ) { - buf = (char *)g_malloc0(len); - ifc.ifc_len = len; - ifc.ifc_buf = buf; - if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) { - if (errno != EINVAL || lastlen != 0) { - if (err_str != NULL) { - *err_str = g_strdup_printf( - "Can't get list of interfaces: SIOCGIFCONF ioctl error: %s", - g_strerror(errno)); - } - goto fail; - } - } else { - if ((unsigned int) ifc.ifc_len < sizeof(struct ifreq)) { - if (err_str != NULL) { - *err_str = g_strdup( - "Can't get list of interfaces: SIOCGIFCONF ioctl gave too small return buffer"); - } - goto fail; - } - if (ifc.ifc_len == lastlen) - break; /* success, len has not changed */ - lastlen = ifc.ifc_len; - } - len += 10 * sizeof(struct ifreq); /* increment */ - g_free(buf); - } - ifr = (struct ifreq *) ifc.ifc_req; - last = (struct ifreq *) ((char *) ifr + ifc.ifc_len); - while (ifr < last) { - /* - * Skip entries that begin with "dummy", or that include - * a ":" (the latter are Solaris virtuals). - */ - if (strncmp(ifr->ifr_name, "dummy", 5) == 0 || - strchr(ifr->ifr_name, ':') != NULL) - goto next; - - /* - * If we already have this interface name on the list, - * don't add it, but, if we don't already have an IP - * address for it, add that address (SIOCGIFCONF returns, - * at least on BSD-flavored systems, one entry per - * interface *address*; if an interface has multiple - * addresses, we get multiple entries for it). - */ - user_data.name = ifr->ifr_name; - user_data.if_info = NULL; - g_list_foreach(il, search_for_if_cb, &user_data); - if (user_data.if_info != NULL) { - if_info_add_address(user_data.if_info, &ifr->ifr_addr); - if (user_data.if_info->addrs) { - g_slist_reverse(user_data.if_info->addrs); - } - goto next; - } - - /* - * Get the interface flags. - */ - memset(&ifrflags, 0, sizeof ifrflags); - g_strlcpy(ifrflags.ifr_name, ifr->ifr_name, - sizeof ifrflags.ifr_name); - if (ioctl(sock, SIOCGIFFLAGS, (char *)&ifrflags) < 0) { - if (errno == ENXIO) - goto next; - if (err_str != NULL) { - *err_str = g_strdup_printf( - "Can't get list of interfaces: SIOCGIFFLAGS error getting flags for interface %s: %s", - ifr->ifr_name, g_strerror(errno)); - } - goto fail; - } - - /* - * Skip interfaces that aren't up. - */ - if (!(ifrflags.ifr_flags & IFF_UP)) - goto next; - - /* - * Skip interfaces that we can't open with "libpcap". - * Open with the minimum packet size - it appears that the - * IRIX SIOCSNOOPLEN "ioctl" may fail if the capture length - * supplied is too large, rather than just truncating it. - */ - pch = pcap_open_live(ifr->ifr_name, MIN_PACKET_SIZE, 0, 0, - errbuf); - if (pch == NULL) - goto next; - pcap_close(pch); - - /* - * If it's a loopback interface, add it at the end of the - * list, otherwise add it after the last non-loopback - * interface, so all loopback interfaces go at the end - we - * don't want a loopback interface to be the default capture - * device unless there are no non-loopback devices. - */ - loopback = ((ifrflags.ifr_flags & IFF_LOOPBACK) || - strncmp(ifr->ifr_name, "lo", 2) == 0); - if_info = if_info_new(ifr->ifr_name, NULL, loopback); - if_info_add_address(if_info, &ifr->ifr_addr); - if (if_info->addrs) { - g_slist_reverse(if_info->addrs); - } - if (loopback) - il = g_list_append(il, if_info); - else { - il = g_list_insert(il, if_info, nonloopback_pos); - /* - * Insert the next non-loopback interface after this - * one. - */ - nonloopback_pos++; - } - - next: -#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN - ifr = (struct ifreq *) ((char *) ifr + - (ifr->ifr_addr.sa_len > sizeof(ifr->ifr_addr) ? - ifr->ifr_addr.sa_len : sizeof(ifr->ifr_addr)) + - IFNAMSIZ); -#else - ifr = (struct ifreq *) ((char *) ifr + sizeof(struct ifreq)); -#endif - } - -#ifdef linux - /* - * OK, maybe we have support for the "any" device, to do a cooked - * capture on all interfaces at once. - * Try opening it and, if that succeeds, add it to the end of - * the list of interfaces. - */ - pch = pcap_open_live("any", MIN_PACKET_SIZE, 0, 0, errbuf); - if (pch != NULL) { - /* - * It worked; we can use the "any" device. - */ - if_info = if_info_new("any", - "Pseudo-device that captures on all interfaces", FALSE); - il = g_list_insert(il, if_info, -1); - pcap_close(pch); - } -#endif - - g_free(ifc.ifc_buf); - close(sock); - - if (il == NULL) { - /* - * No interfaces found. - */ - *err = 0; - if (err_str != NULL) - *err_str = NULL; - } - return il; - -fail: - if (il != NULL) - free_interface_list(il); - g_free(ifc.ifc_buf); - close(sock); - *err = CANT_GET_INTERFACE_LIST; - return NULL; -} -#endif /* HAVE_PCAP_FINDALLDEVS */ /* * Get an error message string for a CANT_GET_INTERFACE_LIST error from @@ -526,11 +274,7 @@ void get_runtime_caplibs_version(GString *str) { g_string_append_printf(str, "with "); -#ifdef HAVE_PCAP_LIB_VERSION g_string_append(str, pcap_lib_version()); -#else - g_string_append(str, "libpcap (version unknown)"); -#endif } #else /* HAVE_LIBPCAP */ |