#include <sys/types.h>
#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h> /* needed to define AF_ values on UNIX */
+#endif
+
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h> /* needed to define AF_ values on Windows */
+#endif
+
+#ifdef NEED_INET_V6DEFS_H
+# include "inet_v6defs.h"
+#endif
+
#include <signal.h>
#include <errno.h>
#include "alert_box.h"
#include "simple_dialog.h"
#include <epan/prefs.h>
-#include "conditions.h"
-#include "ringbuffer.h"
#ifdef _WIN32
#include "capture-wpcap.h"
#include "file_util.h"
#include "log.h"
+typedef struct if_stat_cache_item_s {
+ char *name;
+ struct pcap_stat ps;
+} if_stat_cache_item_t;
+struct if_stat_cache_s {
+ int stat_fd;
+ int fork_child;
+ GList *cache_list; /* List of if_stat_chache_entry_t */
+};
/**
* Start a capture.
gchar *name;
if_info_t *if_info;
if_addr_t *if_addr;
- struct addrinfo *ai;
- struct sockaddr_in *sa4;
- struct sockaddr_in6 *sa6;
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Interface List ...");
/* Try to get our interface list */
*err = sync_interface_list_open(&msg);
- if(*err != 0) {
+ if (*err != 0) {
g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Interface List failed!");
- if (*err_str)
- *err_str = msg;
- else
+ if (err_str) {
+ if (*err_str)
+ *err_str = msg;
+ else
+ g_free(msg);
+ } else {
g_free(msg);
+ }
return NULL;
}
if_info->description = g_strdup(if_parts[1]);
addr_parts = g_strsplit(if_parts[2], ",", 0);
for (j = 0; addr_parts[j] != NULL; j++) {
- /* XXX - We're failing to convert IPv6 addresses (on Ubuntu, at least) */
- if (getaddrinfo(addr_parts[j], NULL, NULL, &ai) == 0) {
+ if_addr = g_malloc0(sizeof(if_addr_t));
+ if (inet_pton(AF_INET, addr_parts[j], &if_addr->ip_addr.ip4_addr)) {
+ if_addr->type = AT_IPv4;
+ } else if (inet_pton(AF_INET6, addr_parts[j],
+ &if_addr->ip_addr.ip6_addr)) {
+ if_addr->type = AT_IPv6;
+ } else {
+ g_free(if_addr);
if_addr = NULL;
- switch (ai->ai_family) {
- case AF_INET:
- if_addr = g_malloc0(sizeof(if_addr_t));
- if_addr->type = AT_IPv4;
- sa4 = (struct sockaddr_in *) ai->ai_addr;
- if_addr->ip_addr.ip4_addr = sa4->sin_addr.s_addr;
- break;
- case AF_INET6:
- if_addr = g_malloc0(sizeof(if_addr_t));
- if_addr->type = AT_IPv6;
- sa6 = (struct sockaddr_in6 *) ai->ai_addr;
- memcpy(&if_addr->ip_addr.ip6_addr, sa6->sin6_addr.s6_addr, 16);
- break;
- }
- if (if_addr) {
- if_info->ip_addr = g_slist_append(if_info->ip_addr, if_addr);
- }
- freeaddrinfo(ai);
+ }
+ if (if_addr) {
+ if_info->ip_addr = g_slist_append(if_info->ip_addr, if_addr);
}
}
if (strcmp(if_parts[3], "loopback") == 0)
/* Check to see if we built a list */
if (if_list == NULL) {
- if (*err_str)
+ if (err_str && *err_str)
*err_str = g_strdup("No interfaces found");
*err = NO_INTERFACES_FOUND;
}
return if_list;
}
+/* XXX - We parse simple text output to get our interface list. Should
+ * we use "real" data serialization instead, e.g. via XML? */
+GList *
+capture_pcap_linktype_list(gchar *ifname, char **err_str)
+{
+ GList *linktype_list = NULL;
+ int err, i;
+ gchar *msg;
+ gchar **raw_list, **lt_parts;
+ data_link_info_t *data_link_info;
+
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Interface List ...");
+
+ /* Try to get our interface list */
+ err = sync_linktype_list_open(ifname, &msg);
+ if (err != 0) {
+ g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture Interface List failed!");
+ if (err_str) {
+ *err_str = msg;
+ } else {
+ g_free(msg);
+ }
+ return NULL;
+ }
+
+ /* Split our lines */
+ raw_list = g_strsplit(msg, "\n", 0);
+ g_free(msg);
+
+ for (i = 0; raw_list[i] != NULL; i++) {
+ /* ...and what if the interface name has a tab in it, Mr. Clever Programmer? */
+ lt_parts = g_strsplit(raw_list[i], "\t", 3);
+ if (lt_parts[0] == NULL || lt_parts[1] == NULL || lt_parts[2] == NULL) {
+ g_strfreev(lt_parts);
+ continue;
+ }
+
+ data_link_info = g_malloc(sizeof (data_link_info_t));
+ data_link_info->dlt = (int) strtol(lt_parts[0], NULL, 10);
+ data_link_info->name = g_strdup(lt_parts[1]);
+ if (strcmp(lt_parts[2], "(not supported)") != 0)
+ data_link_info->description = g_strdup(lt_parts[2]);
+ else
+ data_link_info->description = NULL;
+
+ linktype_list = g_list_append(linktype_list, data_link_info);
+ }
+ g_strfreev(raw_list);
+
+ /* Check to see if we built a list */
+ if (linktype_list == NULL) {
+ if (err_str)
+ *err_str = NULL;
+ }
+ return linktype_list;
+}
+
+if_stat_cache_t *
+capture_stat_start(GList *if_list) {
+ int stat_fd, fork_child;
+ gchar *msg;
+ if_stat_cache_t *sc = NULL;
+ GList *if_entry;
+ if_info_t *if_info;
+ if_stat_cache_item_t *sc_item;
+
+ /* Fire up dumpcap. */
+ /*
+ * XXX - on systems with BPF, the number of BPF devices limits the
+ * number of devices on which you can capture simultaneously.
+ *
+ * This means that
+ *
+ * 1) this might fail if you run out of BPF devices
+ *
+ * and
+ *
+ * 2) opening every interface could leave too few BPF devices
+ * for *other* programs.
+ *
+ * It also means the system could end up getting a lot of traffic
+ * that it has to pass through the networking stack and capture
+ * mechanism, so opening all the devices and presenting packet
+ * counts might not always be a good idea.
+ */
+ if (sync_interface_stats_open(&stat_fd, &fork_child, &msg) == 0) {
+ sc = g_malloc(sizeof(if_stat_cache_t));
+ sc->stat_fd = stat_fd;
+ sc->fork_child = fork_child;
+ sc->cache_list = NULL;
+
+ /* Initialize the cache */
+ for (if_entry = if_list; if_entry != NULL; if_entry = g_list_next(if_entry)) {
+ if_info = if_entry->data;
+ sc_item = g_malloc0(sizeof(if_stat_cache_item_t));
+ sc_item->name = g_strdup(if_info->name);
+ sc->cache_list = g_list_append(sc->cache_list, sc_item);
+ }
+ }
+ return sc;
+}
+
+#define MAX_STAT_LINE_LEN 500
+
+static void
+capture_stat_cache_update(if_stat_cache_t *sc) {
+ gchar stat_line[MAX_STAT_LINE_LEN];
+ gchar **stat_parts;
+ GList *sc_entry;
+ if_stat_cache_item_t *sc_item;
+
+ if (!sc)
+ return;
+
+ while (sync_pipe_gets_nonblock(sc->stat_fd, stat_line, MAX_STAT_LINE_LEN) > 0) {
+ g_strstrip(stat_line);
+ stat_parts = g_strsplit(stat_line, "\t", 3);
+ if (stat_parts[0] == NULL || stat_parts[1] == NULL ||
+ stat_parts[2] == NULL) {
+ g_strfreev(stat_parts);
+ continue;
+ }
+ for (sc_entry = sc->cache_list; sc_entry != NULL; sc_entry = g_list_next(sc_entry)) {
+ sc_item = sc_entry->data;
+ if (strcmp(sc_item->name, stat_parts[0]) == 0) {
+ sc_item->ps.ps_recv = (u_int) strtoul(stat_parts[1], NULL, 10);
+ sc_item->ps.ps_drop = (u_int) strtoul(stat_parts[2], NULL, 10);
+ }
+ }
+ g_strfreev(stat_parts);
+ }
+}
+
+gboolean
+capture_stats(if_stat_cache_t *sc, char *ifname, struct pcap_stat *ps) {
+ GList *sc_entry;
+ if_stat_cache_item_t *sc_item;
+
+ if (!sc || !ifname || !ps) {
+ return FALSE;
+ }
+
+ capture_stat_cache_update(sc);
+ for (sc_entry = sc->cache_list; sc_entry != NULL; sc_entry = g_list_next(sc_entry)) {
+ sc_item = sc_entry->data;
+ if (strcmp(sc_item->name, ifname) == 0) {
+ memcpy(ps, &sc_item->ps, sizeof(struct pcap_stat));
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+void
+capture_stat_stop(if_stat_cache_t *sc) {
+ GList *sc_entry;
+ if_stat_cache_item_t *sc_item;
+ gchar *msg;
+
+ if (!sc)
+ return;
+
+ sync_interface_stats_close(&sc->stat_fd, &sc->fork_child, &msg);
+
+ for (sc_entry = sc->cache_list; sc_entry != NULL; sc_entry = g_list_next(sc_entry)) {
+ sc_item = sc_entry->data;
+ g_free(sc_item->name);
+ g_free(sc_item);
+ }
+ g_free(sc);
+}
#endif /* HAVE_LIBPCAP */
git.samba.org / obnox / wireshark / wip.git / blobdiff