Date: Tue, 31 Jan 2012 18:24:26 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r230832 - in vendor/libpcap/dist: . test Message-ID: <201201311824.q0VIOQGe048776@svn.freebsd.org>
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Author: gnn Date: Tue Jan 31 18:24:25 2012 New Revision: 230832 URL: http://svn.freebsd.org/changeset/base/230832 Log: Add, remove and move files for the 1.2.1 import of libpcap Submitted by: wxs Added: vendor/libpcap/dist/pcap-netfilter-linux.c (contents, props changed) vendor/libpcap/dist/pcap-netfilter-linux.h (contents, props changed) vendor/libpcap/dist/pcap-tstamp.manmisc.in (contents, props changed) vendor/libpcap/dist/pcap_list_tstamp_types.3pcap.in (contents, props changed) vendor/libpcap/dist/pcap_set_tstamp_type.3pcap.in (contents, props changed) vendor/libpcap/dist/pcap_tstamp_type_name_to_val.3pcap vendor/libpcap/dist/pcap_tstamp_type_val_to_name.3pcap vendor/libpcap/dist/test/ vendor/libpcap/dist/test/filtertest.c - copied unchanged from r230831, vendor/libpcap/dist/filtertest.c vendor/libpcap/dist/test/findalldevstest.c - copied unchanged from r230831, vendor/libpcap/dist/findalldevstest.c vendor/libpcap/dist/test/nonblocktest.c (contents, props changed) vendor/libpcap/dist/test/opentest.c - copied unchanged from r230831, vendor/libpcap/dist/opentest.c vendor/libpcap/dist/test/reactivatetest.c (contents, props changed) vendor/libpcap/dist/test/selpolltest.c - copied unchanged from r230831, vendor/libpcap/dist/selpolltest.c Deleted: vendor/libpcap/dist/filtertest.c vendor/libpcap/dist/findalldevstest.c vendor/libpcap/dist/opentest.c vendor/libpcap/dist/pcap_free_datalinks.3pcap vendor/libpcap/dist/pcap_freealldevs.3pcap vendor/libpcap/dist/selpolltest.c Added: vendor/libpcap/dist/pcap-netfilter-linux.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap-netfilter-linux.c Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,468 @@ +/* + * Copyright (c) 2011 Jakub Zawadzki + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "pcap-int.h" + +#ifdef NEED_STRERROR_H +#include "strerror.h" +#endif + +#include <errno.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <sys/socket.h> +#include <arpa/inet.h> + +#include <time.h> +#include <sys/time.h> +#include <netinet/in.h> +#include <linux/types.h> + +#include <linux/netlink.h> +#include <linux/netfilter/nfnetlink.h> +#include <linux/netfilter/nfnetlink_log.h> + +#include "pcap-netfilter-linux.h" + +#define HDR_LENGTH (NLMSG_LENGTH(NLMSG_ALIGN(sizeof(struct nfgenmsg)))) + +#define NFLOG_IFACE "nflog" + +static int +nflog_read_linux(pcap_t *handle, int max_packets, pcap_handler callback, u_char *user) +{ + const unsigned char *buf; + int count = 0; + int len; + + /* ignore interrupt system call error */ + do { + len = recv(handle->fd, handle->buffer, handle->bufsize, 0); + if (handle->break_loop) { + handle->break_loop = 0; + return -2; + } + } while ((len == -1) && (errno == EINTR)); + + if (len < 0) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Can't receive packet %d:%s", errno, pcap_strerror(errno)); + return -1; + } + + buf = handle->buffer; + while (len >= NLMSG_SPACE(0)) { + const struct nlmsghdr *nlh = (const struct nlmsghdr *) buf; + u_int32_t msg_len; + + if (nlh->nlmsg_len < sizeof(struct nlmsghdr) || len < nlh->nlmsg_len) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Message truncated: (got: %d) (nlmsg_len: %u)", len, nlh->nlmsg_len); + return -1; + } + + if (NFNL_SUBSYS_ID(nlh->nlmsg_type) == NFNL_SUBSYS_ULOG && + NFNL_MSG_TYPE(nlh->nlmsg_type) == NFULNL_MSG_PACKET) + { + const unsigned char *payload = NULL; + struct pcap_pkthdr pkth; + + if (handle->linktype != DLT_NFLOG) { + const struct nfattr *payload_attr = NULL; + + if (nlh->nlmsg_len < HDR_LENGTH) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Malformed message: (nlmsg_len: %u)", nlh->nlmsg_len); + return -1; + } + + if (nlh->nlmsg_len > HDR_LENGTH) { + struct nfattr *attr = NFM_NFA(NLMSG_DATA(nlh)); + int attr_len = nlh->nlmsg_len - NLMSG_ALIGN(HDR_LENGTH); + + while (NFA_OK(attr, attr_len)) { + switch (NFA_TYPE(attr)) { + case NFULA_PAYLOAD: + payload_attr = attr; + break; + } + attr = NFA_NEXT(attr, attr_len); + } + } + + if (payload_attr) { + payload = NFA_DATA(payload_attr); + pkth.len = pkth.caplen = NFA_PAYLOAD(payload_attr); + } + + } else { + payload = NLMSG_DATA(nlh); + pkth.caplen = pkth.len = nlh->nlmsg_len-NLMSG_ALIGN(sizeof(struct nlmsghdr)); + } + + if (payload) { + /* pkth.caplen = min (payload_len, handle->snapshot); */ + + gettimeofday(&pkth.ts, NULL); + if (handle->fcode.bf_insns == NULL || + bpf_filter(handle->fcode.bf_insns, payload, pkth.len, pkth.caplen)) + { + handle->md.packets_read++; + callback(user, &pkth, payload); + count++; + } + } + } + + msg_len = NLMSG_ALIGN(nlh->nlmsg_len); + if (msg_len > len) + msg_len = len; + + len -= msg_len; + buf += msg_len; + } + return count; +} + +static int +netfilter_set_datalink(pcap_t *handle, int dlt) +{ + handle->linktype = dlt; + return 0; +} + +static int +netfilter_stats_linux(pcap_t *handle, struct pcap_stat *stats) +{ + stats->ps_recv = handle->md.packets_read; + stats->ps_drop = 0; + stats->ps_ifdrop = 0; + return 0; +} + +static int +netfilter_inject_linux(pcap_t *handle, const void *buf, size_t size) +{ + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "inject not supported on netfilter devices"); + return (-1); +} + +struct my_nfattr { + u_int16_t nfa_len; + u_int16_t nfa_type; + void *data; +}; + +static int +nflog_send_config_msg(const pcap_t *handle, u_int8_t family, u_int16_t res_id, const struct my_nfattr *mynfa) +{ + char buf[1024] __attribute__ ((aligned)); + + struct nlmsghdr *nlh = (struct nlmsghdr *) buf; + struct nfgenmsg *nfg = (struct nfgenmsg *) (buf + sizeof(struct nlmsghdr)); + + struct sockaddr_nl snl; + static unsigned int seq_id; + + if (!seq_id) + seq_id = time(NULL); + ++seq_id; + + nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nfgenmsg)); + nlh->nlmsg_type = (NFNL_SUBSYS_ULOG << 8) | NFULNL_MSG_CONFIG; + nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK; + nlh->nlmsg_pid = 0; /* to kernel */ + nlh->nlmsg_seq = seq_id; + + nfg->nfgen_family = family; + nfg->version = NFNETLINK_V0; + nfg->res_id = htons(res_id); + + if (mynfa) { + struct nfattr *nfa = (struct nfattr *) (buf + NLMSG_ALIGN(nlh->nlmsg_len)); + + nfa->nfa_type = mynfa->nfa_type; + nfa->nfa_len = NFA_LENGTH(mynfa->nfa_len); + memcpy(NFA_DATA(nfa), mynfa->data, mynfa->nfa_len); + nlh->nlmsg_len = NLMSG_ALIGN(nlh->nlmsg_len) + NFA_ALIGN(nfa->nfa_len); + } + + memset(&snl, 0, sizeof(snl)); + snl.nl_family = AF_NETLINK; + + if (sendto(handle->fd, nlh, nlh->nlmsg_len, 0, (struct sockaddr *) &snl, sizeof(snl)) == -1) + return -1; + + /* waiting for reply loop */ + do { + socklen_t addrlen = sizeof(snl); + int len; + + /* ignore interrupt system call error */ + do { + len = recvfrom(handle->fd, buf, sizeof(buf), 0, (struct sockaddr *) &snl, &addrlen); + } while ((len == -1) && (errno == EINTR)); + + if (len <= 0) + return len; + + if (addrlen != sizeof(snl) || snl.nl_family != AF_NETLINK) { + errno = EINVAL; + return -1; + } + + nlh = (struct nlmsghdr *) buf; + if (snl.nl_pid != 0 || seq_id != nlh->nlmsg_seq) /* if not from kernel or wrong sequence skip */ + continue; + + while (len >= NLMSG_SPACE(0) && NLMSG_OK(nlh, len)) { + if (nlh->nlmsg_type == NLMSG_ERROR || (nlh->nlmsg_type == NLMSG_DONE && nlh->nlmsg_flags & NLM_F_MULTI)) { + if (nlh->nlmsg_len < NLMSG_ALIGN(sizeof(struct nlmsgerr))) { + errno = EBADMSG; + return -1; + } + errno = -(*((int *)NLMSG_DATA(nlh))); + return (errno == 0) ? 0 : -1; + } + nlh = NLMSG_NEXT(nlh, len); + } + } while (1); + + return -1; /* never here */ +} + +static int +nflog_send_config_cmd(const pcap_t *handle, u_int16_t group_id, u_int8_t cmd, u_int8_t family) +{ + struct nfulnl_msg_config_cmd msg; + struct my_nfattr nfa; + + msg.command = cmd; + + nfa.data = &msg; + nfa.nfa_type = NFULA_CFG_CMD; + nfa.nfa_len = sizeof(msg); + + return nflog_send_config_msg(handle, family, group_id, &nfa); +} + +static int +nflog_send_config_mode(const pcap_t *handle, u_int16_t group_id, u_int8_t copy_mode, u_int32_t copy_range) +{ + struct nfulnl_msg_config_mode msg; + struct my_nfattr nfa; + + msg.copy_range = htonl(copy_range); + msg.copy_mode = copy_mode; + + nfa.data = &msg; + nfa.nfa_type = NFULA_CFG_MODE; + nfa.nfa_len = sizeof(msg); + + return nflog_send_config_msg(handle, AF_UNSPEC, group_id, &nfa); +} + +static int +nflog_activate(pcap_t* handle) +{ + const char *dev = handle->opt.source; + unsigned short groups[32]; + int group_count = 0; + int i; + + if (strncmp(dev, NFLOG_IFACE, strlen(NFLOG_IFACE)) == 0) { + dev += strlen(NFLOG_IFACE); + + /* nflog:30,33,42 looks nice, allow it */ + if (*dev == ':') + dev++; + + while (*dev) { + long int group_id; + char *end_dev; + + if (group_count == 32) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, + "Maximum 32 netfilter groups! dev: %s", + handle->opt.source); + return PCAP_ERROR; + } + + group_id = strtol(dev, &end_dev, 0); + if (end_dev != dev) { + if (group_id < 0 || group_id > 65535) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, + "Netfilter group range from 0 to 65535 (got %ld)", + group_id); + return PCAP_ERROR; + } + + groups[group_count++] = (unsigned short) group_id; + dev = end_dev; + } + if (*dev != ',') + break; + dev++; + } + } + + if (*dev) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, + "Can't get netfilter group(s) index from %s", + handle->opt.source); + return PCAP_ERROR; + } + + /* if no groups, add default: 0 */ + if (!group_count) { + groups[0] = 0; + group_count = 1; + } + + /* Initialize some components of the pcap structure. */ + handle->bufsize = 128 + handle->snapshot; + handle->offset = 0; + handle->linktype = DLT_NFLOG; + handle->read_op = nflog_read_linux; + handle->inject_op = netfilter_inject_linux; + handle->setfilter_op = install_bpf_program; /* no kernel filtering */ + handle->setdirection_op = NULL; + handle->set_datalink_op = NULL; + handle->set_datalink_op = netfilter_set_datalink; + handle->getnonblock_op = pcap_getnonblock_fd; + handle->setnonblock_op = pcap_setnonblock_fd; + handle->stats_op = netfilter_stats_linux; + + /* Create netlink socket */ + handle->fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER); + if (handle->fd < 0) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Can't create raw socket %d:%s", errno, pcap_strerror(errno)); + return PCAP_ERROR; + } + + handle->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); + if (handle->dlt_list != NULL) { + handle->dlt_list[0] = DLT_NFLOG; + handle->dlt_list[1] = DLT_IPV4; + handle->dlt_count = 2; + } + + handle->buffer = malloc(handle->bufsize); + if (!handle->buffer) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Can't allocate dump buffer: %s", pcap_strerror(errno)); + goto close_fail; + } + + if (nflog_send_config_cmd(handle, 0, NFULNL_CFG_CMD_PF_UNBIND, AF_INET) < 0) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "NFULNL_CFG_CMD_PF_UNBIND: %s", pcap_strerror(errno)); + goto close_fail; + } + + if (nflog_send_config_cmd(handle, 0, NFULNL_CFG_CMD_PF_BIND, AF_INET) < 0) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "NFULNL_CFG_CMD_PF_BIND: %s", pcap_strerror(errno)); + goto close_fail; + } + + /* Bind socket to the nflog groups */ + for (i = 0; i < group_count; i++) { + if (nflog_send_config_cmd(handle, groups[i], NFULNL_CFG_CMD_BIND, AF_UNSPEC) < 0) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Can't listen on group group index: %s", pcap_strerror(errno)); + goto close_fail; + } + + if (nflog_send_config_mode(handle, groups[i], NFULNL_COPY_PACKET, handle->snapshot) < 0) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "NFULNL_COPY_PACKET: %s", pcap_strerror(errno)); + goto close_fail; + } + } + + if (handle->opt.rfmon) { + /* + * Monitor mode doesn't apply to netfilter devices. + */ + pcap_cleanup_live_common(handle); + return PCAP_ERROR_RFMON_NOTSUP; + } + + if (handle->opt.buffer_size != 0) { + /* + * Set the socket buffer size to the specified value. + */ + if (setsockopt(handle->fd, SOL_SOCKET, SO_RCVBUF, &handle->opt.buffer_size, sizeof(handle->opt.buffer_size)) == -1) { + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "SO_RCVBUF: %s", pcap_strerror(errno)); + goto close_fail; + } + } + + handle->selectable_fd = handle->fd; + return 0; + +close_fail: + pcap_cleanup_live_common(handle); + return PCAP_ERROR; +} + +pcap_t * +nflog_create(const char *device, char *ebuf) +{ + pcap_t *p; + + p = pcap_create_common(device, ebuf); + if (p == NULL) + return (NULL); + + p->activate_op = nflog_activate; + return (p); +} + +int +netfilter_platform_finddevs(pcap_if_t **alldevsp, char *err_str) +{ + pcap_if_t *found_dev = *alldevsp; + int sock; + + sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER); + if (sock < 0) { + /* if netlink is not supported this this is not fatal */ + if (errno == EAFNOSUPPORT) + return 0; + snprintf(err_str, PCAP_ERRBUF_SIZE, "Can't open netlink socket %d:%s", + errno, pcap_strerror(errno)); + return -1; + } + close(sock); + + if (pcap_add_if(&found_dev, NFLOG_IFACE, 0, "Linux netfilter log (NFLOG) interface", err_str) < 0) + return -1; + return 0; +} + Added: vendor/libpcap/dist/pcap-netfilter-linux.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap-netfilter-linux.h Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2011 Jakub Zawadzki + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Prototypes for netlink-related functions + */ +int netfilter_platform_finddevs(pcap_if_t **alldevsp, char *err_str); +pcap_t *nflog_create(const char *device, char *ebuf); Added: vendor/libpcap/dist/pcap-tstamp.manmisc.in ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap-tstamp.manmisc.in Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,132 @@ +.\" +.\" Copyright (c) 1987, 1988, 1989, 1990, 1991, 1992, 1994, 1995, 1996, 1997 +.\" The Regents of the University of California. All rights reserved. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that: (1) source code distributions +.\" retain the above copyright notice and this paragraph in its entirety, (2) +.\" distributions including binary code include the above copyright notice and +.\" this paragraph in its entirety in the documentation or other materials +.\" provided with the distribution, and (3) all advertising materials mentioning +.\" features or use of this software display the following acknowledgement: +.\" ``This product includes software developed by the University of California, +.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of +.\" the University nor the names of its contributors may be used to endorse +.\" or promote products derived from this software without specific prior +.\" written permission. +.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +.\" +.TH PCAP-TSTAMP @MAN_MISC_INFO@ "22 August 2010" +.SH NAME +pcap-tstamp \- packet time stamps in libpcap +.SH DESCRIPTION +When capturing traffic, each packet is given a time stamp representing, +for incoming packets, the arrival time of the packet and, for outgoing +packets, the transmission time of the packet. This time is an +approximation of the arrival or transmission time. If it is supplied by +the operating system running on the host on which the capture is being +done, there are several reasons why it might not precisely represent the +arrival or transmission time: +.IP +if the time stamp is applied to the packet when the networking stack +receives the packet, the networking stack might not see the packet until +an interrupt is delivered for the packet or a timer event causes the +networking device driver to poll for packets, and the time stamp might +not be applied until the packet has had some processing done by other +code in the networking stack, so there might be a significant delay +between the time when the last bit of the packet is received by the +capture device and when the networking stack time-stamps the packet; +.IP +the timer used to generate the time stamps might have low resolution, +for example, it might be a timer updated once per host operating system +timer tick, with the host operating system timer ticking once every few +milliseconds; +.IP +a high-resolution timer might use a counter that runs at a rate +dependent on the processor clock speed, and that clock speed might be +adjusted upwards or downwards over time and the timer might not be able +to compensate for all those adjustments; +.IP +the host operating system's clock might be adjusted over time to match a +time standard to which the host is being synchronized, which might be +done by temporarily slowing down or speeding up the clock or by making a +single adjustment; +.IP +different CPU cores on a multi-core or multi-processor system might be +running at different speeds, or might not have time counters all +synchronized, so packets time-stamped by different cores might not have +consistent time stamps. +.LP +In addition, packets time-stamped by different cores might be +time-stamped in one order and added to the queue of packets for libpcap +to read in another order, so time stamps might not be monotonically +increasing. +.LP +Some capture devices on some platforms can provide time stamps for +packets; those time stamps are usually high-resolution time stamps, and +are usually applied to the packet when the first or last bit of the +packet arrives, and are thus more accurate than time stamps provided by +the host operating system. Those time stamps might not, however, be +synchronized with the host operating system's clock, so that, for +example, the time stamp of a packet might not correspond to the time +stamp of an event on the host triggered by the arrival of that packet. +.LP +Depending on the capture device and the software on the host, libpcap +might allow different types of time stamp to be used. The +.BR pcap_list_tstamp_types (3PCAP) +routine provides, for a packet capture handle created by +.BR pcap_create (3PCAP) +but not yet activated by +.BR pcap_activate (3PCAP), +a list of time stamp types supported by the capture device for that +handle. +The list might be empty, in which case no choice of time stamp type is +offered for that capture device. If the list is not empty, the +.BR pcap_set_tstamp_type (3PCAP) +routine can be used after a +.B pcap_create() +call and before a +.B pcap_activate() +call to specify the type of time stamp to be used on the device. +The time stamp types are listed here; the first value is the #define to +use in code, the second value is the value returned by +.B pcap_tstamp_type_val_to_name() +and accepted by +.BR pcap_tstamp_name_to_val() . +.RS 5 +.TP 5 +.BR PCAP_TSTAMP_HOST " - " host +Time stamp provided by the host on which the capture is being done. The +precision of this time stamp is unspecified; it might or might not be +synchronized with the host operating system's clock. +.TP 5 +.BR PCAP_TSTAMP_HOST_LOWPREC " - " host_lowprec +Time stamp provided by the host on which the capture is being done. +This is a low-precision time stamp, synchronized with the host operating +system's clock. +.TP 5 +.BR PCAP_TSTAMP_HOST_HIPREC " - " host_hiprec +Time stamp provided by the host on which the capture is being done. +This is a high-precision time stamp; it might or might not be +synchronized with the host operating system's clock. It might be more +expensive to fetch than +.BR PCAP_TSTAMP_HOST_LOWPREC . +.TP 5 +.BR PCAP_TSTAMP_ADAPTER " - " adapter +Time stamp provided by the network adapter on which the capture is being +done. This is a high-precision time stamp, synchronized with the host +operating system's clock. +.TP 5 +.BR PCAP_TSTAMP_ADAPTER_UNSYNCED " - " adapter_unsynced +Time stamp provided by the network adapter on which the capture is being +done. This is a high-precision time stamp; it is not synchronized with +the host operating system's clock. +.RE +.SH SEE ALSO +pcap_set_tstamp_type(3PCAP), +pcap_list_tstamp_types(3PCAP), +pcap_tstamp_type_val_to_name(3PCAP), +pcap_tstamp_name_to_val(3PCAP) Added: vendor/libpcap/dist/pcap_list_tstamp_types.3pcap.in ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap_list_tstamp_types.3pcap.in Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,70 @@ +.\" +.\" Copyright (c) 1994, 1996, 1997 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that: (1) source code distributions +.\" retain the above copyright notice and this paragraph in its entirety, (2) +.\" distributions including binary code include the above copyright notice and +.\" this paragraph in its entirety in the documentation or other materials +.\" provided with the distribution, and (3) all advertising materials mentioning +.\" features or use of this software display the following acknowledgement: +.\" ``This product includes software developed by the University of California, +.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of +.\" the University nor the names of its contributors may be used to endorse +.\" or promote products derived from this software without specific prior +.\" written permission. +.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +.\" +.TH PCAP_LIST_TSTAMP_TYPES 3PCAP "21 August 2010" +.SH NAME +pcap_list_tstamp_types, pcap_free_tstamp_types \- get a list of time +stamp types supported by a capture device, and free that list +.SH SYNOPSIS +.nf +.ft B +#include <pcap/pcap.h> +.ft +.LP +.ft B +int pcap_list_tstamp_types(pcap_t *p, int **tstamp_typesp); +void pcap_free_tstamp_types(int *tstamp_types); +.ft +.fi +.SH DESCRIPTION +.B pcap_list_tstamp_types() +is used to get a list of the supported time stamp types of the interface +associated with the pcap descriptor. +.B pcap_list_tstamp_types() +allocates an array to hold the list and sets +.I *tstamp_typesp +to point to the array. +See +.BR pcap-tstamp (@MAN_MISC_INFO@) +for a list of all the time stamp types. +.PP +The caller is responsible for freeing the array with +.BR pcap_free_tstamp_types() , +which frees the list pointed to by +.IR tstamp_types . +.SH RETURN VALUE +.B pcap_list_tstamp_types() +returns the number of time stamp types in the array on success and +.B PCAP_ERROR +on failure. +A return value of zero means that you cannot specify a time stamp type; +you are limited to the capture device's default time stamp type. +If +.B PCAP_ERROR +is returned, +.B pcap_geterr() +or +.B pcap_perror() +may be called with +.I p +as an argument to fetch or display the error text. +.SH SEE ALSO +pcap(3PCAP), pcap_geterr(3PCAP), pcap_tstamp_type_val_to_name(3PCAP), +pcap-tstamp(@MAN_MISC_INFO@) Added: vendor/libpcap/dist/pcap_set_tstamp_type.3pcap.in ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap_set_tstamp_type.3pcap.in Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,65 @@ +.\" +.\" Copyright (c) 1994, 1996, 1997 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that: (1) source code distributions +.\" retain the above copyright notice and this paragraph in its entirety, (2) +.\" distributions including binary code include the above copyright notice and +.\" this paragraph in its entirety in the documentation or other materials +.\" provided with the distribution, and (3) all advertising materials mentioning +.\" features or use of this software display the following acknowledgement: +.\" ``This product includes software developed by the University of California, +.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of +.\" the University nor the names of its contributors may be used to endorse +.\" or promote products derived from this software without specific prior +.\" written permission. +.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +.\" +.TH PCAP_SET_TSTAMP_TYPE 3PCAP "21 August 2010" +.SH NAME +pcap_set_tstamp_type \- set the time stamp type to be used by a +capture device +.SH SYNOPSIS +.nf +.ft B +#include <pcap/pcap.h> +.ft +.LP +.ft B +int pcap_set_tstamp_type(pcap_t *p, int tstamp_type); +.ft +.fi +.SH DESCRIPTION +.B pcap_set_tstamp_type() +sets the the type of time stamp desired for packets captured on the pcap +descriptor to the type specified by +.IR tstamp_type . +It must be called on a pcap descriptor created by +.B pcap_create() +that has not yet been activated by +.BR pcap_activate() . +.B pcap_list_tstamp_types() +will give a list of the time stamp types supported by a given capture +device. +See +.BR pcap-tstamp (@MAN_MISC_INFO@) +for a list of all the time stamp types. +.SH RETURN VALUE +.B pcap_set_tstamp_type() +returns 0 on success if the specified time stamp type is expected to be +supported by the capture device, +.B PCAP_WARNING_TSTAMP_TYPE_NOTSUP +on success if the specified time stamp type is not supported by the +capture device, +.B PCAP_ERROR_ACTIVATED +if called on a capture handle that has been activated, and +.B PCAP_ERROR_CANTSET_TSTAMP_TYPE +if the capture device doesn't support setting the time stamp type. +.SH SEE ALSO +pcap(3PCAP), +pcap_list_tstamp_types(3PCAP), +pcap_tstamp_type_name_to_val(3PCAP), +pcap-tstamp(@MAN_MISC_INFO@) Added: vendor/libpcap/dist/pcap_tstamp_type_name_to_val.3pcap ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap_tstamp_type_name_to_val.3pcap Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,45 @@ +.\" +.\" Copyright (c) 1994, 1996, 1997 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that: (1) source code distributions +.\" retain the above copyright notice and this paragraph in its entirety, (2) +.\" distributions including binary code include the above copyright notice and +.\" this paragraph in its entirety in the documentation or other materials +.\" provided with the distribution, and (3) all advertising materials mentioning +.\" features or use of this software display the following acknowledgement: +.\" ``This product includes software developed by the University of California, +.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of +.\" the University nor the names of its contributors may be used to endorse +.\" or promote products derived from this software without specific prior +.\" written permission. +.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +.\" +.TH PCAP_TSTAMP_TYPE_NAME_TO_VAL 3PCAP "21 August 2010" +.SH NAME +pcap_tstamp_type_name_to_val \- get the time stamp type value +corresponding to a time stamp type name +.SH SYNOPSIS +.nf +.ft B +#include <pcap/pcap.h> +.ft +.LP +.ft B +int pcap_tstamp_type_name_to_val(const char *name); +.ft +.fi +.SH DESCRIPTION +.B pcap_tstamp_type_name_to_val() +translates a time stamp type name to the corresponding time stamp type +value. The translation is case-insensitive. +.SH RETURN VALUE +.B pcap_tstamp_type_name_to_val() +returns 0 on success and +.B PCAP_ERROR +on failure. +.SH SEE ALSO +pcap(3PCAP), pcap_tstamp_type_val_to_name(3PCAP) Added: vendor/libpcap/dist/pcap_tstamp_type_val_to_name.3pcap ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/pcap_tstamp_type_val_to_name.3pcap Tue Jan 31 18:24:25 2012 (r230832) @@ -0,0 +1,45 @@ +.\" +.\" Copyright (c) 1994, 1996, 1997 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that: (1) source code distributions +.\" retain the above copyright notice and this paragraph in its entirety, (2) +.\" distributions including binary code include the above copyright notice and +.\" this paragraph in its entirety in the documentation or other materials +.\" provided with the distribution, and (3) all advertising materials mentioning +.\" features or use of this software display the following acknowledgement: +.\" ``This product includes software developed by the University of California, +.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of +.\" the University nor the names of its contributors may be used to endorse +.\" or promote products derived from this software without specific prior +.\" written permission. +.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +.\" +.TH PCAP_TSTAMP_TYPE_VAL_TO_NAME 3PCAP "21 August 2010" +.SH NAME +pcap_tstamp_type_val_to_name, pcap_tstamp_type_val_to_description \- get +a name or description for a time stamp type value +.SH SYNOPSIS +.nf +.ft B +#include <pcap.h> +.ft +.LP +.ft B +const char *pcap_tstamp_type_val_to_name(int tstamp_type); +const char *pcap_tstamp_type_val_to_description(int tstamp_type); +.ft +.fi +.SH DESCRIPTION +.B pcap_tstamp_type_val_to_name() +translates a time stamp type value to the corresponding time stamp type +name. NULL is returned on failure. +.PP +.B pcap_tstamp_type_val_to_description() +translates a time stamp type value to a short description of that time +stamp type. NULL is returned on failure. +.SH SEE ALSO +pcap(3PCAP), pcap_tstamp_type_name_to_val(3PCAP) Copied: vendor/libpcap/dist/test/filtertest.c (from r230831, vendor/libpcap/dist/filtertest.c) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ vendor/libpcap/dist/test/filtertest.c Tue Jan 31 18:24:25 2012 (r230832, copy of r230831, vendor/libpcap/dist/filtertest.c) @@ -0,0 +1,266 @@ +/* + * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that: (1) source code distributions + * retain the above copyright notice and this paragraph in its entirety, (2) + * distributions including binary code include the above copyright notice and + * this paragraph in its entirety in the documentation or other materials + * provided with the distribution, and (3) all advertising materials mentioning + * features or use of this software display the following acknowledgement: + * ``This product includes software developed by the University of California, + * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of + * the University nor the names of its contributors may be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#ifndef lint +static const char copyright[] _U_ = + "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\ +The Regents of the University of California. All rights reserved.\n"; +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/libpcap/filtertest.c,v 1.2 2005-08-08 17:50:13 guy Exp $ (LBL)"; +#endif + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <pcap.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <arpa/inet.h> +#include <sys/types.h> +#include <sys/stat.h> + +#ifndef HAVE___ATTRIBUTE__ +#define __attribute__(x) +#endif + +static char *program_name; + +/* Forwards */ +static void usage(void) __attribute__((noreturn)); +static void error(const char *, ...) + __attribute__((noreturn, format (printf, 1, 2))); + +extern int optind; +extern int opterr; +extern char *optarg; + +/* + * On Windows, we need to open the file in binary mode, so that + * we get all the bytes specified by the size we get from "fstat()". + * On UNIX, that's not necessary. O_BINARY is defined on Windows; + * we define it as 0 if it's not defined, so it does nothing. + */ +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +static char * +read_infile(char *fname) +{ + register int i, fd, cc; + register char *cp; + struct stat buf; + + fd = open(fname, O_RDONLY|O_BINARY); + if (fd < 0) + error("can't open %s: %s", fname, pcap_strerror(errno)); + + if (fstat(fd, &buf) < 0) + error("can't stat %s: %s", fname, pcap_strerror(errno)); + + cp = malloc((u_int)buf.st_size + 1); + if (cp == NULL) + error("malloc(%d) for %s: %s", (u_int)buf.st_size + 1, + fname, pcap_strerror(errno)); + cc = read(fd, cp, (u_int)buf.st_size); + if (cc < 0) + error("read %s: %s", fname, pcap_strerror(errno)); + if (cc != buf.st_size) + error("short read %s (%d != %d)", fname, cc, (int)buf.st_size); + + close(fd); + /* replace "# comment" with spaces */ + for (i = 0; i < cc; i++) { + if (cp[i] == '#') + while (i < cc && cp[i] != '\n') + cp[i++] = ' '; + } + cp[cc] = '\0'; + return (cp); +} + +/* VARARGS */ +static void +error(const char *fmt, ...) +{ + va_list ap; + + (void)fprintf(stderr, "%s: ", program_name); + va_start(ap, fmt); + (void)vfprintf(stderr, fmt, ap); + va_end(ap); + if (*fmt) { *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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