diff options
Diffstat (limited to 'package/libs/libpcap/patches/202-protocol_api.patch')
| -rw-r--r-- | package/libs/libpcap/patches/202-protocol_api.patch | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/package/libs/libpcap/patches/202-protocol_api.patch b/package/libs/libpcap/patches/202-protocol_api.patch new file mode 100644 index 0000000000..892aeb7e0d --- /dev/null +++ b/package/libs/libpcap/patches/202-protocol_api.patch @@ -0,0 +1,141 @@ +--- a/pcap-int.h ++++ b/pcap-int.h +@@ -209,6 +209,7 @@ struct pcap_opt { + char *source; + int promisc; + int rfmon; ++ int proto; /* protocol for packet socket (linux) */ + }; + + /* +--- a/pcap-linux.c ++++ b/pcap-linux.c +@@ -335,7 +335,7 @@ static int iface_get_id(int fd, const ch + static int iface_get_mtu(int fd, const char *device, char *ebuf); + static int iface_get_arptype(int fd, const char *device, char *ebuf); + #ifdef HAVE_PF_PACKET_SOCKETS +-static int iface_bind(int fd, int ifindex, char *ebuf); ++static int iface_bind(int fd, int ifindex, char *ebuf, unsigned short proto); + #ifdef IW_MODE_MONITOR + static int has_wext(int sock_fd, const char *device, char *ebuf); + #endif /* IW_MODE_MONITOR */ +@@ -881,7 +881,7 @@ pcap_can_set_rfmon_linux(pcap_t *handle) + * (We assume that if we have Wireless Extensions support + * we also have PF_PACKET support.) + */ +- sock_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); ++ sock_fd = socket(PF_PACKET, SOCK_RAW, p->opt.proto); + if (sock_fd == -1) { + (void)snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, + "socket: %s", pcap_strerror(errno)); +@@ -1128,6 +1128,9 @@ pcap_activate_linux(pcap_t *handle) + handle->read_op = pcap_read_linux; + handle->stats_op = pcap_stats_linux; + ++ if (handle->opt.proto < 0) ++ handle->opt.proto = (int) htons(ETH_P_ALL); ++ + /* + * The "any" device is a special device which causes us not + * to bind to a particular device and thus to look at all +@@ -2684,8 +2687,8 @@ activate_new(pcap_t *handle) + * 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)); ++ socket(PF_PACKET, SOCK_DGRAM, handle->opt.proto) : ++ socket(PF_PACKET, SOCK_RAW, handle->opt.proto); + + if (sock_fd == -1) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "socket: %s", +@@ -2783,7 +2786,7 @@ activate_new(pcap_t *handle) + return PCAP_ERROR; + } + sock_fd = socket(PF_PACKET, SOCK_DGRAM, +- htons(ETH_P_ALL)); ++ handle->opt.proto); + if (sock_fd == -1) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, + "socket: %s", pcap_strerror(errno)); +@@ -2835,7 +2838,7 @@ activate_new(pcap_t *handle) + } + + if ((err = iface_bind(sock_fd, handle->md.ifindex, +- handle->errbuf)) != 1) { ++ handle->errbuf, handle->opt.proto)) != 1) { + close(sock_fd); + if (err < 0) + return err; +@@ -3640,7 +3643,7 @@ iface_get_id(int fd, const char *device, + * or a PCAP_ERROR_ value on a hard error. + */ + static int +-iface_bind(int fd, int ifindex, char *ebuf) ++iface_bind(int fd, int ifindex, char *ebuf, unsigned short proto) + { + struct sockaddr_ll sll; + int err; +@@ -3649,7 +3652,7 @@ iface_bind(int fd, int ifindex, char *eb + memset(&sll, 0, sizeof(sll)); + sll.sll_family = AF_PACKET; + sll.sll_ifindex = ifindex; +- sll.sll_protocol = htons(ETH_P_ALL); ++ sll.sll_protocol = proto; + + if (bind(fd, (struct sockaddr *) &sll, sizeof(sll)) == -1) { + if (errno == ENETDOWN) { +@@ -4359,7 +4362,7 @@ activate_old(pcap_t *handle) + + /* Open the socket */ + +- handle->fd = socket(PF_INET, SOCK_PACKET, htons(ETH_P_ALL)); ++ handle->fd = socket(PF_INET, SOCK_PACKET, handle->opt.proto); + if (handle->fd == -1) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, + "socket: %s", pcap_strerror(errno)); +--- a/pcap.c ++++ b/pcap.c +@@ -258,6 +258,8 @@ pcap_create_common(const char *source, c + pcap_set_snaplen(p, 65535); /* max packet size */ + p->opt.promisc = 0; + p->opt.buffer_size = 0; ++ p->opt.proto = -1; ++ + return (p); + } + +@@ -317,6 +319,15 @@ pcap_set_buffer_size(pcap_t *p, int buff + return 0; + } + ++int ++pcap_set_protocol(pcap_t *p, unsigned short proto) ++{ ++ if (pcap_check_activated(p)) ++ return PCAP_ERROR_ACTIVATED; ++ p->opt.proto = proto; ++ return 0; ++} ++ + int + pcap_activate(pcap_t *p) + { +--- a/pcap/pcap.h ++++ b/pcap/pcap.h +@@ -68,6 +68,7 @@ extern "C" { + #define PCAP_VERSION_MINOR 4 + + #define PCAP_ERRBUF_SIZE 256 ++#define HAS_PROTO_EXTENSION + + /* + * Compatibility for systems that have a bpf.h that +@@ -276,6 +277,7 @@ int pcap_can_set_rfmon(pcap_t *); + int pcap_set_rfmon(pcap_t *, int); + int pcap_set_timeout(pcap_t *, int); + int pcap_set_buffer_size(pcap_t *, int); ++int pcap_set_protocol(pcap_t *, unsigned short); + int pcap_activate(pcap_t *); + + pcap_t *pcap_open_live(const char *, int, int, int, char *); |