* time, so that we only need one Ethereal binary and one Tethereal binary
* for Windows, regardless of whether WinPcap is installed or not.
*
- * $Id: capture-wpcap.c,v 1.8 2004/01/05 19:31:42 ulfl Exp $
+ * $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
static pcap_t* (*p_pcap_open_live) (char *, int, int, int, char *);
#endif
static int (*p_pcap_loop) (pcap_t *, int, pcap_handler, guchar *);
+static void (*p_pcap_freecode) (struct bpf_program *);
#ifdef HAVE_PCAP_FINDALLDEVS
static int (*p_pcap_findalldevs) (pcap_if_t **, char *);
static void (*p_pcap_freealldevs) (pcap_if_t *);
#endif
+#ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL
+static int (*p_pcap_datalink_name_to_val) (const char *);
+#endif
+#ifdef HAVE_PCAP_DATALINK_VAL_TO_NAME
+static const char *(*p_pcap_datalink_val_to_name) (int);
+#endif
static const char *(*p_pcap_lib_version) (void);
+static int (*p_pcap_setbuff) (pcap_t *, int dim);
typedef struct {
const char *name;
SYM(pcap_lookupnet, FALSE),
SYM(pcap_open_live, FALSE),
SYM(pcap_loop, FALSE),
+ SYM(pcap_freecode, FALSE),
#ifdef HAVE_PCAP_FINDALLDEVS
SYM(pcap_findalldevs, TRUE),
SYM(pcap_freealldevs, TRUE),
+#endif
+#ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL
+ SYM(pcap_datalink_name_to_val, TRUE),
+#endif
+#ifdef HAVE_PCAP_DATALINK_VAL_TO_NAME
+ SYM(pcap_datalink_val_to_name, TRUE),
#endif
SYM(pcap_lib_version, TRUE),
+ SYM(pcap_setbuff, TRUE),
{ NULL, NULL, FALSE }
};
return p_pcap_dispatch(a, b, c, d);
}
-
int
pcap_snapshot(pcap_t *a)
{
return p_pcap_snapshot(a);
}
-
int
pcap_datalink(pcap_t *a)
{
return p_pcap_loop(a, b, c, d);
}
+void
+pcap_freecode(struct bpf_program *a)
+{
+ g_assert(has_wpcap);
+ p_pcap_freecode(a);
+}
+
#ifdef HAVE_PCAP_FINDALLDEVS
int
pcap_findalldevs(pcap_if_t **a, char *b)
}
#endif
+#if defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || defined(HAVE_PCAP_DATALINK_VAL_TO_NAME)
+/*
+ * Table of DLT_ types, names, and descriptions, for use if the version
+ * of WinPcap we have installed lacks "pcap_datalink_name_to_val()"
+ * or "pcap_datalink_val_to_name()".
+ */
+struct dlt_choice {
+ const char *name;
+ const char *description;
+ int dlt;
+};
+
+#define DLT_CHOICE(code, description) { #code, description, code }
+#define DLT_CHOICE_SENTINEL { NULL, NULL, 0 }
+
+static struct dlt_choice dlt_choices[] = {
+ DLT_CHOICE(DLT_NULL, "BSD loopback"),
+ DLT_CHOICE(DLT_EN10MB, "Ethernet"),
+ DLT_CHOICE(DLT_IEEE802, "Token ring"),
+ DLT_CHOICE(DLT_ARCNET, "ARCNET"),
+ DLT_CHOICE(DLT_SLIP, "SLIP"),
+ DLT_CHOICE(DLT_PPP, "PPP"),
+ DLT_CHOICE(DLT_FDDI, "FDDI"),
+ DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 IP-over-ATM"),
+ DLT_CHOICE(DLT_RAW, "Raw IP"),
+#ifdef DLT_SLIP_BSDOS
+ DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"),
+#endif
+#ifdef DLT_PPP_BSDOS
+ DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"),
+#endif
+#ifdef DLT_ATM_CLIP
+ DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"),
+#endif
+#ifdef DLT_PPP_SERIAL
+ DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"),
+#endif
+#ifdef DLT_PPP_ETHER
+ DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"),
+#endif
+#ifdef DLT_C_HDLC
+ DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"),
+#endif
+#ifdef DLT_IEEE802_11
+ DLT_CHOICE(DLT_IEEE802_11, "802.11"),
+#endif
+#ifdef DLT_FRELAY
+ DLT_CHOICE(DLT_FRELAY, "Frame Relay"),
+#endif
+#ifdef DLT_LOOP
+ DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"),
+#endif
+#ifdef DLT_ENC
+ DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"),
+#endif
+#ifdef DLT_LINUX_SLL
+ DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"),
+#endif
+#ifdef DLT_LTALK
+ DLT_CHOICE(DLT_LTALK, "Localtalk"),
+#endif
+#ifdef DLT_PFLOG
+ DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"),
+#endif
+#ifdef DLT_PRISM_HEADER
+ DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"),
+#endif
+#ifdef DLT_IP_OVER_FC
+ DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"),
+#endif
+#ifdef DLT_SUNATM
+ DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"),
+#endif
+#ifdef DLT_IEEE802_11_RADIO
+ DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus radio information header"),
+#endif
+#ifdef DLT_ARCNET_LINUX
+ DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"),
+#endif
+#ifdef DLT_LINUX_IRDA
+ DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"),
+#endif
+#ifdef DLT_LANE8023
+ DLT_CHOICE(DLT_LANE8023, "Linux 802.3 LANE"),
+#endif
+#ifdef DLT_CIP
+ DLT_CHOICE(DLT_CIP, "Linux Classical IP-over-ATM"),
+#endif
+#ifdef DLT_HDLC
+ DLT_CHOICE(DLT_HDLC, "Cisco HDLC"),
+#endif
+ DLT_CHOICE_SENTINEL
+};
+#endif /* defined(HAVE_PCAP_DATALINK_NAME_TO_VAL) || defined(HAVE_PCAP_DATALINK_VAL_TO_NAME) */
+
+#ifdef HAVE_PCAP_DATALINK_NAME_TO_VAL
+int
+pcap_datalink_name_to_val(const char *name)
+{
+ int i;
+
+ g_assert(has_wpcap);
+
+ if (p_pcap_datalink_name_to_val != NULL)
+ return p_pcap_datalink_name_to_val(name);
+ else {
+ /*
+ * We don't have it in WinPcap; do it ourselves.
+ */
+ for (i = 0; dlt_choices[i].name != NULL; i++) {
+ if (strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
+ name) == 0)
+ return dlt_choices[i].dlt;
+ }
+ return -1;
+ }
+}
+#endif
+
+#ifdef HAVE_PCAP_DATALINK_VAL_TO_NAME
+const char *
+pcap_datalink_val_to_name(int dlt)
+{
+ int i;
+
+ g_assert(has_wpcap);
+
+ if (p_pcap_datalink_val_to_name != NULL)
+ return p_pcap_datalink_val_to_name(dlt);
+ else {
+ /*
+ * We don't have it in WinPcap; do it ourselves.
+ */
+ for (i = 0; dlt_choices[i].name != NULL; i++) {
+ if (dlt_choices[i].dlt == dlt)
+ return dlt_choices[i].name + sizeof("DLT_") - 1;
+ }
+ return NULL;
+ }
+}
+#endif
+
+/* setbuff is win32 specific! */
+int pcap_setbuff(pcap_t *a, int b)
+{
+ g_assert(has_wpcap);
+ return p_pcap_setbuff(a, b);
+}
+
/*
* This will use "pcap_findalldevs()" if we have it, otherwise it'll
* fall back on "pcap_lookupdev()".
return il;
}
+/*
+ * Get an error message string for a CANT_GET_INTERFACE_LIST error from
+ * "get_interface_list()".
+ */
+gchar *
+cant_get_if_list_error_message(const char *err_str)
+{
+ /*
+ * If the error message includes "Not enough storage is available
+ * to process this command" or "The operation completed successfully",
+ * suggest that they install a WinPcap version later than 3.0.
+ */
+ if (strstr(err_str, "Not enough storage is available to process this command") != NULL ||
+ strstr(err_str, "The operation completed successfully") != NULL) {
+ return g_strdup_printf("Can't get list of interfaces: %s\n"
+"This might be a problem with WinPcap 3.0; you should try updating to\n"
+"a later version of WinPcap - see the WinPcap site at winpcap.polito.it",
+ err_str);
+ }
+ return g_strdup_printf("Can't get list of interfaces: %s", err_str);
+}
+
/*
* Append the version of WinPcap with which we were compiled to a GString.
*/
* not and, if we have it and we have "pcap_lib_version()",
* what version we have.
*/
+ GModule *handle; /* handle returned by dlopen */
+ static gchar *packetVer;
+ gchar *blankp;
+
if (has_wpcap) {
g_string_sprintfa(str, "with ");
if (p_pcap_lib_version != NULL)
g_string_sprintfa(str, p_pcap_lib_version());
- else
- g_string_append(str, "WinPcap (version unknown)");
+ else {
+ /*
+ * An alternative method of obtaining the version
+ * number, by using the PacketLibraryVersion"
+ * string from packet.dll.
+ *
+ * Unfortunately, in WinPcap 3.0, it returns
+ * "3.0 alpha3", even in the final version of
+ * WinPcap 3.0, so if there's a blank in the
+ * string, we strip it and everything after
+ * it from the string, so we don't misleadingly
+ * report that 3.0 alpha3 is being used when
+ * the final version is being used.
+ */
+ if (packetVer == NULL) {
+ packetVer = "version unknown";
+ handle = g_module_open("Packet.dll", 0);
+ if (handle != NULL) {
+ if (g_module_symbol(handle,
+ "PacketLibraryVersion",
+ (gpointer*)&packetVer)) {
+ packetVer = g_strdup(packetVer);
+ blankp = strchr(packetVer, ' ');
+ if (blankp != NULL)
+ *blankp = '\0';
+ }
+ g_module_close(handle);
+ }
+ }
+ g_string_sprintfa(str, "WinPcap (%s)", packetVer);
+ }
} else
g_string_append(str, "without WinPcap");
g_string_append(str, " ");
git.samba.org / obnox / wireshark / wip.git / blobdiff