diff options
Diffstat (limited to 'capture_opts.c')
| -rw-r--r-- | capture_opts.c | 215 |
1 files changed, 214 insertions, 1 deletions
diff --git a/capture_opts.c b/capture_opts.c index f200be3735..732e48124e 100644 --- a/capture_opts.c +++ b/capture_opts.c @@ -38,6 +38,9 @@ #include <glib.h> #include <epan/packet.h> +#include <epan/prefs.h> +#include "ui/simple_dialog.h" +#include "capture_ui_utils.h" #include "capture_opts.h" #include "ringbuffer.h" @@ -57,6 +60,8 @@ capture_opts_init(capture_options *capture_opts, void *cf) { capture_opts->cf = cf; capture_opts->ifaces = g_array_new(FALSE, FALSE, sizeof(interface_options)); + capture_opts->all_ifaces = g_array_new(FALSE, FALSE, sizeof(interface_t)); + capture_opts->num_selected = 0; capture_opts->default_options.name = NULL; capture_opts->default_options.descr = NULL; capture_opts->default_options.cfilter = NULL; @@ -528,6 +533,169 @@ capture_opts_add_iface_opt(capture_options *capture_opts, const char *optarg_str } int +capture_opts_select_iface(capture_options *capture_opts, const char *optarg_str_p) +{ + long adapter_index; + char *p; + GList *if_list; + if_info_t *if_info; + int err; + guint i; + gchar *err_str, *name = NULL; + interface_t device; + gboolean found = FALSE; + interface_options interface_opts; + + /* + * If the argument is a number, treat it as an index into the list + * of adapters, as printed by "tshark -D". + * + * This should be OK on UNIX systems, as interfaces shouldn't have + * names that begin with digits. It can be useful on Windows, where + * more than one interface can have the same name. + */ + adapter_index = strtol(optarg_str_p, &p, 10); + if (p != NULL && *p == '\0') { + if (adapter_index < 0) { + cmdarg_err("The specified adapter index is a negative number"); + return 1; + } + if (adapter_index > INT_MAX) { + cmdarg_err("The specified adapter index is too large (greater than %d)", + INT_MAX); + return 1; + } + if (adapter_index == 0) { + cmdarg_err("There is no interface with that adapter index"); + return 1; + } + if_list = capture_interface_list(&err, &err_str); + if (if_list == NULL) { + switch (err) { + + case CANT_GET_INTERFACE_LIST: + cmdarg_err("%s", err_str); + g_free(err_str); + break; + + case NO_INTERFACES_FOUND: + cmdarg_err("There are no interfaces on which a capture can be done"); + break; + } + return 2; + } + if_info = (if_info_t *)g_list_nth_data(if_list, adapter_index - 1); + if (if_info == NULL) { + cmdarg_err("There is no interface with that adapter index"); + return 1; + } + name = g_strdup(if_info->name); + /* We don't set iface_descr here because doing so requires + * capture_ui_utils.c which requires epan/prefs.c which is + * probably a bit too much dependency for here... + */ + free_interface_list(if_list); + } else { + name = g_strdup(optarg_str_p); + } + if (capture_opts->all_ifaces->len > 0) { + for(i = 0; i < capture_opts->all_ifaces->len; i++) { + device = g_array_index(capture_opts->all_ifaces, interface_t, i); + if (strcmp(device.name, name) == 0) { + if (device.hidden) { + cmdarg_err("Interface %s is hidden. You can't capture on hidden interfaces.", name); + return 1; + } + device.selected = TRUE; + capture_opts->num_selected++; + capture_opts->all_ifaces = g_array_remove_index(capture_opts->all_ifaces, i); + g_array_insert_val(capture_opts->all_ifaces, i, device); + found = TRUE; + break; + } + } + if (!found) { + device.name = g_strdup(name); + device.display_name = g_strdup_printf("%s", device.name); + device.hidden = FALSE; + device.selected = TRUE; + device.type = IF_PIPE; + device.pmode = capture_opts->default_options.promisc_mode; + device.has_snaplen = capture_opts->default_options.has_snaplen; + device.snaplen = capture_opts->default_options.snaplen; + device.cfilter = g_strdup(capture_opts->default_options.cfilter); + device.addresses = NULL; + device.no_addresses = 0; + device.last_packets = 0; + device.links = NULL; + device.active_dlt = -1; + device.local = TRUE; + device.locked = FALSE; +#if defined(_WIN32) || defined(HAVE_PCAP_CREATE) + device.buffer = 1; + device.monitor_mode_enabled = FALSE; + device.monitor_mode_supported = FALSE; +#endif + g_array_append_val(capture_opts->all_ifaces, device); + capture_opts->num_selected++; + } + } else { + interface_opts.name = g_strdup(optarg_str_p); + interface_opts.descr = g_strdup(capture_opts->default_options.descr); + interface_opts.cfilter = g_strdup(capture_opts->default_options.cfilter); + interface_opts.snaplen = capture_opts->default_options.snaplen; + interface_opts.has_snaplen = capture_opts->default_options.has_snaplen; + interface_opts.linktype = capture_opts->default_options.linktype; + interface_opts.promisc_mode = capture_opts->default_options.promisc_mode; +#if defined(_WIN32) || defined(HAVE_PCAP_CREATE) + interface_opts.buffer_size = capture_opts->default_options.buffer_size; +#endif + interface_opts.monitor_mode = capture_opts->default_options.monitor_mode; +#ifdef HAVE_PCAP_REMOTE + interface_opts.src_type = capture_opts->default_options.src_type; + interface_opts.remote_host = g_strdup(capture_opts->default_options.remote_host); + interface_opts.remote_port = g_strdup(capture_opts->default_options.remote_port); + interface_opts.auth_type = capture_opts->default_options.auth_type; + interface_opts.auth_username = g_strdup(capture_opts->default_options.auth_username); + interface_opts.auth_password = g_strdup(capture_opts->default_options.auth_password); + interface_opts.datatx_udp = capture_opts->default_options.datatx_udp; + interface_opts.nocap_rpcap = capture_opts->default_options.nocap_rpcap; + interface_opts.nocap_local = capture_opts->default_options.nocap_local; +#endif +#ifdef HAVE_PCAP_SETSAMPLING + interface_opts.sampling_method = capture_opts->default_options.sampling_method; + interface_opts.sampling_param = capture_opts->default_options.sampling_param; +#endif + g_array_append_val(capture_opts->ifaces, interface_opts); + + device.name = g_strdup(name); + device.display_name = g_strdup_printf("%s", device.name); + device.hidden = FALSE; + device.selected = TRUE; + device.type = IF_PIPE; + device.pmode = capture_opts->default_options.promisc_mode; + device.has_snaplen = capture_opts->default_options.has_snaplen; + device.snaplen = capture_opts->default_options.snaplen; + device.cfilter = g_strdup(capture_opts->default_options.cfilter); + device.addresses = NULL; + device.no_addresses = 0; + device.last_packets = 0; + device.links = NULL; + device.active_dlt = -1; + device.local = TRUE; + device.locked = FALSE; +#if defined(_WIN32) || defined(HAVE_PCAP_CREATE) + device.buffer = 1; + device.monitor_mode_enabled = FALSE; + device.monitor_mode_supported = FALSE; +#endif + g_array_append_val(capture_opts->all_ifaces, device); + capture_opts->num_selected++; + } + return 0; +} + +int capture_opts_add_opt(capture_options *capture_opts, int opt, const char *optarg_str_p, gboolean *start_capture) { int status, snaplen; @@ -827,7 +995,7 @@ gboolean capture_opts_trim_iface(capture_options *capture_opts, const char *capt /* Did the user specify an interface to use? */ - if (capture_opts->ifaces->len == 0) { + if (capture_opts->num_selected == 0 && capture_opts->ifaces->len == 0) { /* No - is a default specified in the preferences file? */ if (capture_device != NULL) { /* Yes - use it. */ @@ -959,4 +1127,49 @@ static gboolean capture_opts_output_to_pipe(const char *save_file, gboolean *is_ return 0; } +void +collect_ifaces(capture_options *capture_opts) +{ + guint i; + interface_t device; + interface_options interface_opts; + for (i = 0; i < capture_opts->all_ifaces->len; i++) { + device = g_array_index(capture_opts->all_ifaces, interface_t, i); + if (!device.hidden && device.selected) { + interface_opts.name = g_strdup(device.name); + interface_opts.descr = g_strdup(device.display_name); + interface_opts.monitor_mode = device.monitor_mode_enabled; + interface_opts.linktype = device.active_dlt; + interface_opts.cfilter = g_strdup(device.cfilter); + interface_opts.snaplen = device.snaplen; + interface_opts.has_snaplen = device.has_snaplen; + interface_opts.promisc_mode = device.pmode; +#if defined(_WIN32) || defined(HAVE_PCAP_CREATE) + interface_opts.buffer_size = device.buffer; +#endif + if (!device.local) { +#ifdef HAVE_PCAP_REMOTE + interface_opts.src_type = CAPTURE_IFREMOTE; + interface_opts.remote_host = g_strdup(device.remote_opts.remote_host_opts.remote_host); + interface_opts.remote_port = g_strdup(device.remote_opts.remote_host_opts.remote_port); + interface_opts.auth_type = device.remote_opts.remote_host_opts.auth_type; + interface_opts.auth_username = g_strdup(device.remote_opts.remote_host_opts.auth_username); + interface_opts.auth_password = g_strdup(device.remote_opts.remote_host_opts.auth_password); + interface_opts.datatx_udp = device.remote_opts.remote_host_opts.datatx_udp; + interface_opts.nocap_rpcap = device.remote_opts.remote_host_opts.nocap_rpcap; + interface_opts.nocap_local = device.remote_opts.remote_host_opts.nocap_local; +#endif +#ifdef HAVE_PCAP_SETSAMPLING + interface_opts.sampling_method = device.remote_opts.sampling_method; + interface_opts.sampling_param = device.remote_opts.sampling_param; +#endif + } + g_array_append_val(capture_opts->ifaces, interface_opts); + } else { + continue; + } + } +} + + #endif /* HAVE_LIBPCAP */ |