diff options
Diffstat (limited to 'package/libpcap/patches/200-debian_fix_any_intf.patch')
| -rw-r--r-- | package/libpcap/patches/200-debian_fix_any_intf.patch | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/package/libpcap/patches/200-debian_fix_any_intf.patch b/package/libpcap/patches/200-debian_fix_any_intf.patch index 8da6ef2..e69de29 100644 --- a/package/libpcap/patches/200-debian_fix_any_intf.patch +++ b/package/libpcap/patches/200-debian_fix_any_intf.patch @@ -1,149 +0,0 @@ ---- a/pcap-linux.c -+++ b/pcap-linux.c -@@ -297,6 +297,12 @@ pcap_create(const char *device, char *eb - { - pcap_t *handle; - -+ /* -+ * A null device name is equivalent to the "any" device. -+ */ -+ if (device == NULL) -+ device = "any"; -+ - #ifdef HAVE_DAG_API - if (strstr(device, "dag")) { - return dag_create(device, ebuf); -@@ -338,10 +344,9 @@ pcap_can_set_rfmon_linux(pcap_t *p) - struct iwreq ireq; - #endif - -- if (p->opt.source == NULL) { -+ if (strcmp(p->opt.source, "any") == 0) { - /* -- * This is equivalent to the "any" device, and we don't -- * support monitor mode on it. -+ * Monitor mode makes no sense on the "any" device. - */ - return 0; - } -@@ -518,12 +523,11 @@ pcap_activate_linux(pcap_t *handle) - handle->stats_op = pcap_stats_linux; - - /* -- * NULL and "any" are special devices which give us the hint to -- * monitor all devices. -+ * The "any" device is a special device which causes us not -+ * to bind to a particular device and thus to look at all -+ * devices. - */ -- if (!device || strcmp(device, "any") == 0) { -- device = NULL; -- handle->md.device = strdup("any"); -+ if (strcmp(device, "any") == 0) { - if (handle->opt.promisc) { - handle->opt.promisc = 0; - /* Just a warning. */ -@@ -531,10 +535,9 @@ pcap_activate_linux(pcap_t *handle) - "Promiscuous mode not supported on the \"any\" device"); - status = PCAP_WARNING_PROMISC_NOTSUP; - } -+ } - -- } else -- handle->md.device = strdup(device); -- -+ handle->md.device = strdup(device); - if (handle->md.device == NULL) { - snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "strdup: %s", - pcap_strerror(errno) ); -@@ -1657,19 +1660,21 @@ static int - activate_new(pcap_t *handle) - { - #ifdef HAVE_PF_PACKET_SOCKETS -+ const char *device = handle->opt.source; -+ int is_any_device = (strcmp(device, "any") == 0); - int sock_fd = -1, arptype, val; - int err = 0; - struct packet_mreq mr; -- const char* device = handle->opt.source; - - /* -- * Open a socket with protocol family packet. If a device is -- * given we try to open it in raw mode otherwise we use -- * the cooked interface. -- */ -- sock_fd = device ? -- socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)) -- : socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)); -+ * Open a socket with protocol family packet. If the -+ * "any" device was specified, we open a SOCK_DGRAM -+ * socket for the cooked interface, otherwise we first -+ * try a SOCK_RAW socket for the raw interface. -+ */ -+ sock_fd = is_any_device ? -+ socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)) : -+ socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); - - if (sock_fd == -1) { - snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "socket: %s", -@@ -1704,7 +1709,7 @@ activate_new(pcap_t *handle) - * to cooked mode if we have an unknown interface type - * or a type we know doesn't work well in raw mode. - */ -- if (device) { -+ if (!is_any_device) { - /* Assume for now we don't need cooked mode. */ - handle->md.cooked = 0; - -@@ -1819,15 +1824,23 @@ activate_new(pcap_t *handle) - } - } else { - /* -- * This is cooked mode. -+ * The "any" device. -+ */ -+ if (handle->opt.rfmon) { -+ /* -+ * It doesn't support monitor mode. -+ */ -+ return PCAP_ERROR_RFMON_NOTSUP; -+ } -+ -+ /* -+ * It uses cooked mode. - */ - handle->md.cooked = 1; - handle->linktype = DLT_LINUX_SLL; - - /* - * We're not bound to a device. -- * XXX - true? Or true only if we're using -- * the "any" device? - * For now, we're using this as an indication - * that we can't transmit; stop doing that only - * if we figure out how to transmit in cooked -@@ -1852,10 +1865,13 @@ activate_new(pcap_t *handle) - - /* - * Hmm, how can we set promiscuous mode on all interfaces? -- * I am not sure if that is possible at all. -+ * I am not sure if that is possible at all. For now, we -+ * silently ignore attempts to turn promiscuous mode on -+ * for the "any" device (so you don't have to explicitly -+ * disable it in programs such as tcpdump). - */ - -- if (device && handle->opt.promisc) { -+ if (!is_any_device && handle->opt.promisc) { - memset(&mr, 0, sizeof(mr)); - mr.mr_ifindex = handle->md.ifindex; - mr.mr_type = PACKET_MR_PROMISC; -@@ -3118,7 +3134,7 @@ activate_old(pcap_t *handle) - - /* Bind to the given device */ - -- if (!device) { -+ if (strcmp(device, "any") == 0) { - strncpy(handle->errbuf, "pcap_activate: The \"any\" device isn't supported on 2.0[.x]-kernel systems", - PCAP_ERRBUF_SIZE); - return PCAP_ERROR; |