/*
* RFC2428 states ....
*
* The first two fields contained in the parenthesis MUST be blank. The
* third field MUST be the string representation of the TCP port number
* on which the server is listening for a data connection.
*
* The network protocol used by the data connection will be the same network
* protocol used by the control connection. In addition, the network
* address used to establish the data connection will be the same
* network address used for the control connection.
*
* An example response string follows:
*
* Entering Extended Passive Mode (|||6446|)
*
* ... which in fact means that again both address families IPv4 and IPv6
* are supported. But gladly it's not necessary to parse because it doesn't
* occur in EPSV responses. We can leverage ftp_ip_address which is
* protocol independent and already set.
*
*/
static gboolean
parse_extended_pasv_response(const guchar *line, gint linelen, guint16 *ftp_port,
guint *pasv_offset, guint *ftp_port_len)
{
gint n;
gchar *args;
gchar *p;
gchar *e;
guchar c;
gboolean ret = FALSE;
gboolean delimiters_seen = FALSE;
/*
* Copy the rest of the line into a null-terminated buffer.
*/
args = wmem_strndup(wmem_packet_scope(), line, linelen);
p = args;
/*
* Look for ( <d> <d> <d>
(Try to cope with '(' in description)
*/
for (; !delimiters_seen;) {
guchar delimiter = '\0';
while ((c = *p) != '\0' && (c != '('))
p++;
if (*p == '\0') {
return FALSE;
}
/* Skip '(' */
p++;
/* Make sure same delimiter is used 3 times */
for (n=0; n<3; n++) {
if ((c = *p) != '\0') {
if (delimiter == '\0' && isvalid_rfc2428_delimiter(c)) {
delimiter = c;
}
if (c != delimiter) {
break;
}
p++;
}
else {
break;
}
}
delimiters_seen = TRUE;
}
/*
* Should now be at digits.
*/
if (*p != '\0') {
const gchar* endptr;
gboolean port_valid;
/*
* We didn't run out of text without finding anything.
*/
port_valid = ws_strtou16(p, &endptr, ftp_port);
/* the conversion returned false, but the converted value could
be valid instead, check it out */
if (!port_valid && *endptr == '|')
port_valid = TRUE;
if (port_valid) {
*pasv_offset = (guint32)(p - args);
ret = TRUE;
/* get port string length */
if ((e=strchr(p,')')) == NULL) {
ret = FALSE;
}
else {
*ftp_port_len = (guint)(--e - p);
}
}
}
return ret;
}
/*
* RFC2428 states...
*
* AF Number Protocol
* --------- --------
* 1 Internet Protocol, Version 4
* 2 Internet Protocol, Version 6
*
* AF Number Address Format Example
* --------- -------------- -------
* 1 dotted decimal 132.235.1.2
* 2 IPv6 string 1080::8:800:200C:417A
* representations
* defined in
*
* The following are sample EPRT commands:
* EPRT |1|132.235.1.2|6275|
* EPRT |2|1080::8:800:200C:417A|5282|
*
* The first command specifies that the server should use IPv4 to open a
* data connection to the host "132.235.1.2" on TCP port 6275. The
* second command specifies that the server should use the IPv6 network
* protocol and the network address "1080::8:800:200C:417A" to open a
* TCP data connection on port 5282.
*
* ... which means in fact that RFC2428 is capable to handle both,
* IPv4 and IPv6 so we have to care about the address family and properly
* act depending on it.
*
*/
static gboolean
parse_eprt_request(const guchar* line, gint linelen, guint32 *eprt_af,
guint32 *eprt_ip, guint16 *eprt_ipv6, guint16 *ftp_port,
guint32 *eprt_ip_len, guint32 *ftp_port_len)
{
gint delimiters_seen = 0;
gchar delimiter;
gint fieldlen;
gchar *field;
gint n;
gint lastn;
char *args, *p;
gboolean ret = TRUE;
/* line contains the EPRT parameters, we need at least the 4 delimiters */
if (!line || linelen<4)
return FALSE;
/* Copy the rest of the line into a null-terminated buffer. */
args = wmem_strndup(wmem_packet_scope(), line, linelen);
p = args;
/*
* Handle a NUL being in the line; if there's a NUL in the line,
* strlen(args) will terminate at the NUL and will thus return
* a value less than linelen.
*/
if ((gint)strlen(args) < linelen)
linelen = (gint)strlen(args);
/*
* RFC2428 sect. 2 states ...
*
* The EPRT command keyword MUST be followed by a single space (ASCII
* 32). Following the space, a delimiter character (<d>) MUST be
* specified.
*
* ... the preceding <space> is already stripped so we know that the first
* character must be the delimiter and has just to be checked to be valid.
*/
if (!isvalid_rfc2428_delimiter(*p))
return FALSE; /* EPRT command does not follow a vaild delimiter;
* malformed EPRT command - immediate escape */
delimiter = *p;
/* Validate that the delimiter occurs 4 times in the string */
for (n = 0; n < linelen; n++) {
if (*(p+n) == delimiter)
delimiters_seen++;
}
if (delimiters_seen != 4)
return FALSE; /* delimiter doesn't occur 4 times
* probably no EPRT request - immediate escape */
/* we know that the first character is a delimiter... */
delimiters_seen = 1;
lastn = 0;
/* ... so we can start searching from the 2nd onwards */
for (n=1; n < linelen; n++) {
if (*(p+n) != delimiter)
continue;
/* we found a delimiter */
delimiters_seen++;
fieldlen = n - lastn - 1;
if (fieldlen<=0)
return FALSE; /* all fields must have data in them */
field = p + lastn + 1;
if (delimiters_seen == 2) { /* end of address family field */
gchar *af_str;
af_str = wmem_strndup(wmem_packet_scope(), field, fieldlen);
if (!ws_strtou32(af_str, NULL, eprt_af))
return FALSE;
}
else if (delimiters_seen == 3) {/* end of IP address field */
gchar *ip_str;
ip_str = wmem_strndup(wmem_packet_scope(), field, fieldlen);
if (*eprt_af == EPRT_AF_IPv4) {
if (str_to_ip(ip_str, eprt_ip))
ret = TRUE;
else
ret = FALSE;
}
else if (*eprt_af == EPRT_AF_IPv6) {
if (str_to_ip6(ip_str, eprt_ipv6))
ret = TRUE;
else
ret = FALSE;
}
else
return FALSE; /* invalid/unknown address family */
*eprt_ip_len = fieldlen;
}
else if (delimiters_seen == 4) {/* end of port field */
gchar *pt_str;
pt_str = wmem_strndup(wmem_packet_scope(), field, fieldlen);
if (!ws_strtou16(pt_str, NULL, ftp_port))
return FALSE;
*ftp_port_len = fieldlen;
}
lastn = n;
}
return ret;
}
int main(int argc, char **argv)
{
int result;
int option_idx = 0;
char* remote_host = NULL;
guint16 remote_port = 22;
char* remote_username = NULL;
char* remote_password = NULL;
char* remote_interface = NULL;
char* sshkey = NULL;
char* sshkey_passphrase = NULL;
char* remote_filter = NULL;
guint32 count = 0;
int ret = EXIT_FAILURE;
extcap_parameters * extcap_conf = g_new0(extcap_parameters, 1);
char* help_url;
char* help_header = NULL;
#ifdef _WIN32
WSADATA wsaData;
attach_parent_console();
#endif /* _WIN32 */
help_url = data_file_url("ciscodump.html");
extcap_base_set_util_info(extcap_conf, argv[0], CISCODUMP_VERSION_MAJOR, CISCODUMP_VERSION_MINOR,
CISCODUMP_VERSION_RELEASE, help_url);
g_free(help_url);
extcap_base_register_interface(extcap_conf, CISCODUMP_EXTCAP_INTERFACE, "Cisco remote capture", 147, "Remote capture dependent DLT");
help_header = g_strdup_printf(
" %s --extcap-interfaces\n"
" %s --extcap-interface=%s --extcap-dlts\n"
" %s --extcap-interface=%s --extcap-config\n"
" %s --extcap-interface=%s --remote-host myhost --remote-port 22222 "
"--remote-username myuser --remote-interface gigabit0/0 "
"--fifo=FILENAME --capture\n", argv[0], argv[0], CISCODUMP_EXTCAP_INTERFACE, argv[0],
CISCODUMP_EXTCAP_INTERFACE, argv[0], CISCODUMP_EXTCAP_INTERFACE);
extcap_help_add_header(extcap_conf, help_header);
g_free(help_header);
extcap_help_add_option(extcap_conf, "--help", "print this help");
extcap_help_add_option(extcap_conf, "--version", "print the version");
extcap_help_add_option(extcap_conf, "--remote-host <host>", "the remote SSH host");
extcap_help_add_option(extcap_conf, "--remote-port <port>", "the remote SSH port (default: 22)");
extcap_help_add_option(extcap_conf, "--remote-username <username>", "the remote SSH username (default: the current user)");
extcap_help_add_option(extcap_conf, "--remote-password <password>", "the remote SSH password. "
"If not specified, ssh-agent and ssh-key are used");
extcap_help_add_option(extcap_conf, "--sshkey <public key path>", "the path of the ssh key");
extcap_help_add_option(extcap_conf, "--sshkey-passphrase <public key passphrase>", "the passphrase to unlock public ssh");
extcap_help_add_option(extcap_conf, "--remote-interface <iface>", "the remote capture interface");
extcap_help_add_option(extcap_conf, "--remote-filter <filter>", "a filter for remote capture "
"(default: don't capture data for lal interfaces IPs)");
opterr = 0;
optind = 0;
if (argc == 1) {
extcap_help_print(extcap_conf);
goto end;
}
while ((result = getopt_long(argc, argv, ":", longopts, &option_idx)) != -1) {
switch (result) {
case OPT_HELP:
extcap_help_print(extcap_conf);
ret = EXIT_SUCCESS;
goto end;
case OPT_VERSION:
printf("%s\n", extcap_conf->version);
goto end;
case OPT_REMOTE_HOST:
g_free(remote_host);
remote_host = g_strdup(optarg);
break;
case OPT_REMOTE_PORT:
if (!ws_strtou16(optarg, NULL, &remote_port) || remote_port == 0) {
g_warning("Invalid port: %s", optarg);
goto end;
}
break;
case OPT_REMOTE_USERNAME:
g_free(remote_username);
remote_username = g_strdup(optarg);
break;
case OPT_REMOTE_PASSWORD:
g_free(remote_password);
remote_password = g_strdup(optarg);
memset(optarg, 'X', strlen(optarg));
break;
case OPT_SSHKEY:
g_free(sshkey);
sshkey = g_strdup(optarg);
break;
case OPT_SSHKEY_PASSPHRASE:
g_free(sshkey_passphrase);
sshkey_passphrase = g_strdup(optarg);
memset(optarg, 'X', strlen(optarg));
break;
case OPT_REMOTE_INTERFACE:
g_free(remote_interface);
remote_interface = g_strdup(optarg);
break;
case OPT_REMOTE_FILTER:
g_free(remote_filter);
remote_filter = g_strdup(optarg);
break;
case OPT_REMOTE_COUNT:
if (!ws_strtou32(optarg, NULL, &count)) {
g_warning("Invalid packet count: %s", optarg);
goto end;
}
break;
case ':':
/* missing option argument */
g_warning("Option '%s' requires an argument", argv[optind - 1]);
break;
default:
if (!extcap_base_parse_options(extcap_conf, result - EXTCAP_OPT_LIST_INTERFACES, optarg)) {
g_warning("Invalid option: %s", argv[optind - 1]);
goto end;
}
}
}
extcap_cmdline_debug(argv, argc);
if (optind != argc) {
g_warning("Unexpected extra option: %s", argv[optind]);
goto end;
}
if (extcap_base_handle_interface(extcap_conf)) {
ret = EXIT_SUCCESS;
goto end;
}
if (extcap_conf->show_config) {
ret = list_config(extcap_conf->interface, remote_port);
goto end;
}
#ifdef _WIN32
result = WSAStartup(MAKEWORD(1,1), &wsaData);
if (result != 0) {
g_warning("ERROR: WSAStartup failed with error: %d", result);
goto end;
}
#endif /* _WIN32 */
if (extcap_conf->capture) {
if (!remote_host) {
g_warning("Missing parameter: --remote-host");
goto end;
}
if (!remote_interface) {
g_warning("ERROR: No interface specified (--remote-interface)");
goto end;
}
if (count == 0) {
g_warning("ERROR: count of packets must be specified (--remote-count)");
goto end;
}
ret = ssh_open_remote_connection(remote_host, remote_port, remote_username,
remote_password, sshkey, sshkey_passphrase, remote_interface,
remote_filter, count, extcap_conf->fifo);
} else {
g_debug("You should not come here... maybe some parameter missing?");
ret = EXIT_FAILURE;
}
end:
g_free(remote_host);
g_free(remote_username);
g_free(remote_password);
g_free(remote_interface);
g_free(sshkey);
g_free(sshkey_passphrase);
g_free(remote_filter);
extcap_base_cleanup(&extcap_conf);
return ret;
}
int main(int argc, char *argv[])
{
int option_idx = 0;
int result;
guint16 port = 0;
int ret = EXIT_FAILURE;
extcap_parameters* extcap_conf = g_new0(extcap_parameters, 1);
char* help_url;
char* help_header = NULL;
char* payload = NULL;
char* port_msg = NULL;
#ifdef _WIN32
WSADATA wsaData;
attach_parent_console();
#endif /* _WIN32 */
help_url = data_file_url("udpdump.html");
extcap_base_set_util_info(extcap_conf, argv[0], UDPDUMP_VERSION_MAJOR, UDPDUMP_VERSION_MINOR, UDPDUMP_VERSION_RELEASE,
help_url);
g_free(help_url);
extcap_base_register_interface(extcap_conf, UDPDUMP_EXTCAP_INTERFACE, "UDP Listener remote capture", 252, "Exported PDUs");
help_header = g_strdup_printf(
" %s --extcap-interfaces\n"
" %s --extcap-interface=%s --extcap-dlts\n"
" %s --extcap-interface=%s --extcap-config\n"
" %s --extcap-interface=%s --port 5555 --fifo myfifo --capture",
argv[0], argv[0], UDPDUMP_EXTCAP_INTERFACE, argv[0], UDPDUMP_EXTCAP_INTERFACE, argv[0], UDPDUMP_EXTCAP_INTERFACE);
extcap_help_add_header(extcap_conf, help_header);
g_free(help_header);
extcap_help_add_option(extcap_conf, "--help", "print this help");
extcap_help_add_option(extcap_conf, "--version", "print the version");
port_msg = g_strdup_printf("the port to listens on. Default: %u", UDPDUMP_DEFAULT_PORT);
extcap_help_add_option(extcap_conf, "--port <port>", port_msg);
g_free(port_msg);
opterr = 0;
optind = 0;
if (argc == 1) {
extcap_help_print(extcap_conf);
goto end;
}
while ((result = getopt_long(argc, argv, ":", longopts, &option_idx)) != -1) {
switch (result) {
case OPT_HELP:
extcap_help_print(extcap_conf);
ret = EXIT_SUCCESS;
goto end;
case OPT_VERSION:
printf("%s\n", extcap_conf->version);
goto end;
case OPT_PORT:
if (!ws_strtou16(optarg, NULL, &port)) {
g_warning("Invalid port: %s", optarg);
goto end;
}
break;
case OPT_PAYLOAD:
g_free(payload);
payload = g_strdup(optarg);
break;
case ':':
/* missing option argument */
g_warning("Option '%s' requires an argument", argv[optind - 1]);
break;
default:
if (!extcap_base_parse_options(extcap_conf, result - EXTCAP_OPT_LIST_INTERFACES, optarg)) {
g_warning("Invalid option: %s", argv[optind - 1]);
goto end;
}
}
}
extcap_cmdline_debug(argv, argc);
if (optind != argc) {
g_warning("Unexpected extra option: %s", argv[optind]);
goto end;
}
if (extcap_base_handle_interface(extcap_conf)) {
ret = EXIT_SUCCESS;
goto end;
}
if (extcap_conf->show_config) {
ret = list_config(extcap_conf->interface);
goto end;
}
if (!payload)
payload = g_strdup("data");
#ifdef _WIN32
result = WSAStartup(MAKEWORD(1,1), &wsaData);
if (result != 0) {
g_warning("Error: WSAStartup failed with error: %d", result);
goto end;
}
#endif /* _WIN32 */
if (port == 0)
port = UDPDUMP_DEFAULT_PORT;
if (extcap_conf->capture)
run_listener(extcap_conf->fifo, port, payload);
end:
/* clean up stuff */
extcap_base_cleanup(&extcap_conf);
g_free(payload);
return ret;
}
int main(int argc, char *argv[])
{
char* err_msg;
int result;
int option_idx = 0;
ssh_params_t* ssh_params = ssh_params_new();
char* remote_interface = NULL;
char* remote_filter = NULL;
guint32 count = 0;
int ret = EXIT_FAILURE;
extcap_parameters * extcap_conf = g_new0(extcap_parameters, 1);
char* help_url;
char* help_header = NULL;
/*
* Get credential information for later use.
*/
init_process_policies();
/*
* Attempt to get the pathname of the directory containing the
* executable file.
*/
err_msg = init_progfile_dir(argv[0]);
if (err_msg != NULL) {
g_warning("Can't get pathname of directory containing the captype program: %s.",
err_msg);
g_free(err_msg);
}
help_url = data_file_url("ciscodump.html");
extcap_base_set_util_info(extcap_conf, argv[0], CISCODUMP_VERSION_MAJOR, CISCODUMP_VERSION_MINOR,
CISCODUMP_VERSION_RELEASE, help_url);
g_free(help_url);
extcap_base_register_interface(extcap_conf, CISCODUMP_EXTCAP_INTERFACE, "Cisco remote capture", 147, "Remote capture dependent DLT");
help_header = g_strdup_printf(
" %s --extcap-interfaces\n"
" %s --extcap-interface=%s --extcap-dlts\n"
" %s --extcap-interface=%s --extcap-config\n"
" %s --extcap-interface=%s --remote-host myhost --remote-port 22222 "
"--remote-username myuser --remote-interface gigabit0/0 "
"--fifo=FILENAME --capture\n", argv[0], argv[0], CISCODUMP_EXTCAP_INTERFACE, argv[0],
CISCODUMP_EXTCAP_INTERFACE, argv[0], CISCODUMP_EXTCAP_INTERFACE);
extcap_help_add_header(extcap_conf, help_header);
g_free(help_header);
extcap_help_add_option(extcap_conf, "--help", "print this help");
extcap_help_add_option(extcap_conf, "--version", "print the version");
extcap_help_add_option(extcap_conf, "--remote-host <host>", "the remote SSH host");
extcap_help_add_option(extcap_conf, "--remote-port <port>", "the remote SSH port (default: 22)");
extcap_help_add_option(extcap_conf, "--remote-username <username>", "the remote SSH username (default: the current user)");
extcap_help_add_option(extcap_conf, "--remote-password <password>", "the remote SSH password. "
"If not specified, ssh-agent and ssh-key are used");
extcap_help_add_option(extcap_conf, "--sshkey <public key path>", "the path of the ssh key");
extcap_help_add_option(extcap_conf, "--sshkey-passphrase <public key passphrase>", "the passphrase to unlock public ssh");
extcap_help_add_option(extcap_conf, "--proxycommand <proxy command>", "the command to use as proxy the the ssh connection");
extcap_help_add_option(extcap_conf, "--remote-interface <iface>", "the remote capture interface");
extcap_help_add_option(extcap_conf, "--remote-filter <filter>", "a filter for remote capture "
"(default: don't capture data for lal interfaces IPs)");
opterr = 0;
optind = 0;
if (argc == 1) {
extcap_help_print(extcap_conf);
goto end;
}
while ((result = getopt_long(argc, argv, ":", longopts, &option_idx)) != -1) {
switch (result) {
case OPT_HELP:
extcap_help_print(extcap_conf);
ret = EXIT_SUCCESS;
goto end;
case OPT_VERSION:
printf("%s\n", extcap_conf->version);
goto end;
case OPT_REMOTE_HOST:
g_free(ssh_params->host);
ssh_params->host = g_strdup(optarg);
break;
case OPT_REMOTE_PORT:
if (!ws_strtou16(optarg, NULL, &ssh_params->port) || ssh_params->port == 0) {
g_warning("Invalid port: %s", optarg);
goto end;
}
break;
case OPT_REMOTE_USERNAME:
g_free(ssh_params->username);
ssh_params->username = g_strdup(optarg);
break;
case OPT_REMOTE_PASSWORD:
g_free(ssh_params->password);
ssh_params->password = g_strdup(optarg);
memset(optarg, 'X', strlen(optarg));
break;
case OPT_SSHKEY:
g_free(ssh_params->sshkey_path);
ssh_params->sshkey_path = g_strdup(optarg);
break;
case OPT_SSHKEY_PASSPHRASE:
g_free(ssh_params->sshkey_passphrase);
ssh_params->sshkey_passphrase = g_strdup(optarg);
memset(optarg, 'X', strlen(optarg));
break;
case OPT_PROXYCOMMAND:
g_free(ssh_params->proxycommand);
ssh_params->proxycommand = g_strdup(optarg);
break;
case OPT_REMOTE_INTERFACE:
g_free(remote_interface);
remote_interface = g_strdup(optarg);
break;
case OPT_REMOTE_FILTER:
g_free(remote_filter);
remote_filter = g_strdup(optarg);
break;
case OPT_REMOTE_COUNT:
if (!ws_strtou32(optarg, NULL, &count)) {
g_warning("Invalid packet count: %s", optarg);
goto end;
}
break;
case ':':
/* missing option argument */
g_warning("Option '%s' requires an argument", argv[optind - 1]);
break;
default:
if (!extcap_base_parse_options(extcap_conf, result - EXTCAP_OPT_LIST_INTERFACES, optarg)) {
g_warning("Invalid option: %s", argv[optind - 1]);
goto end;
}
}
}
extcap_cmdline_debug(argv, argc);
if (optind != argc) {
g_warning("Unexpected extra option: %s", argv[optind]);
goto end;
}
if (extcap_base_handle_interface(extcap_conf)) {
ret = EXIT_SUCCESS;
goto end;
}
if (extcap_conf->show_config) {
ret = list_config(extcap_conf->interface, ssh_params->port);
goto end;
}
err_msg = ws_init_sockets();
if (err_msg != NULL) {
g_warning("ERROR: %s", err_msg);
g_free(err_msg);
g_warning("%s", please_report_bug());
goto end;
}
if (extcap_conf->capture) {
if (!ssh_params->host) {
g_warning("Missing parameter: --remote-host");
goto end;
}
if (!remote_interface) {
g_warning("ERROR: No interface specified (--remote-interface)");
goto end;
}
if (count == 0) {
g_warning("ERROR: count of packets must be specified (--remote-count)");
goto end;
}
ssh_params->debug = extcap_conf->debug;
ret = ssh_open_remote_connection(ssh_params, remote_interface,
remote_filter, count, extcap_conf->fifo);
} else {
g_debug("You should not come here... maybe some parameter missing?");
ret = EXIT_FAILURE;
}
end:
ssh_params_free(ssh_params);
g_free(remote_interface);
g_free(remote_filter);
extcap_base_cleanup(&extcap_conf);
return ret;
}
static void
dissect_quakeworld_ConnectionlessPacket(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, int direction)
{
proto_tree *cl_tree;
proto_tree *text_tree = NULL;
proto_item *pi = NULL;
guint8 *text;
int len;
int offset;
guint32 marker;
int command_len;
const char *command = "";
gboolean command_finished = FALSE;
marker = tvb_get_ntohl(tvb, 0);
cl_tree = proto_tree_add_subtree(tree, tvb, 0, -1, ett_quakeworld_connectionless, NULL, "Connectionless");
proto_tree_add_uint(cl_tree, hf_quakeworld_connectionless_marker,
tvb, 0, 4, marker);
/* all the rest of the packet is just text */
offset = 4;
text = tvb_get_stringz_enc(wmem_packet_scope(), tvb, offset, &len, ENC_ASCII|ENC_NA);
/* actually, we should look for a eol char and stop already there */
if (cl_tree) {
proto_item *text_item;
text_item = proto_tree_add_string(cl_tree, hf_quakeworld_connectionless_text,
tvb, offset, len, text);
text_tree = proto_item_add_subtree(text_item, ett_quakeworld_connectionless_text);
}
if (direction == DIR_C2S) {
/* client to server commands */
const char *c;
Cmd_TokenizeString(text, len);
c = Cmd_Argv(0);
/* client to sever commands */
if (strcmp(c,"ping") == 0) {
command = "Ping";
command_len = 4;
} else if (strcmp(c,"status") == 0) {
command = "Status";
command_len = 6;
} else if (strcmp(c,"log") == 0) {
command = "Log";
command_len = 3;
} else if (strcmp(c,"connect") == 0) {
guint32 version = 0;
guint16 qport = 0;
guint32 challenge = 0;
gboolean version_valid = TRUE;
gboolean qport_valid = TRUE;
gboolean challenge_valid = TRUE;
const char *infostring;
proto_tree *argument_tree = NULL;
command = "Connect";
command_len = Cmd_Argv_length(0);
if (text_tree) {
proto_item *argument_item;
pi = proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
tvb, offset, command_len, command);
argument_item = proto_tree_add_string(text_tree,
hf_quakeworld_connectionless_arguments,
tvb, offset + Cmd_Argv_start(1), len + 1 - Cmd_Argv_start(1),
text + Cmd_Argv_start(1));
argument_tree = proto_item_add_subtree(argument_item,
ett_quakeworld_connectionless_arguments);
command_finished=TRUE;
}
version_valid = ws_strtou32(Cmd_Argv(1), NULL, &version);
qport_valid = ws_strtou16(Cmd_Argv(2), NULL, &qport);
challenge_valid = ws_strtou32(Cmd_Argv(3), NULL, &challenge);
infostring = Cmd_Argv(4);
if (text_tree && (!version_valid || !qport_valid || !challenge_valid))
expert_add_info(pinfo, pi, &ei_quakeworld_connectionless_command_invalid);
if (argument_tree) {
proto_item *info_item;
proto_tree *info_tree;
proto_tree_add_uint(argument_tree,
hf_quakeworld_connectionless_connect_version,
tvb,
offset + Cmd_Argv_start(1),
Cmd_Argv_length(1), version);
proto_tree_add_uint(argument_tree,
hf_quakeworld_connectionless_connect_qport,
tvb,
offset + Cmd_Argv_start(2),
Cmd_Argv_length(2), qport);
proto_tree_add_int(argument_tree,
hf_quakeworld_connectionless_connect_challenge,
tvb,
offset + Cmd_Argv_start(3),
Cmd_Argv_length(3), challenge);
info_item = proto_tree_add_string(argument_tree,
hf_quakeworld_connectionless_connect_infostring,
tvb,
offset + Cmd_Argv_start(4),
Cmd_Argv_length(4), infostring);
info_tree = proto_item_add_subtree(
info_item, ett_quakeworld_connectionless_connect_infostring);
dissect_id_infostring(tvb, info_tree, offset + Cmd_Argv_start(4),
wmem_strdup(wmem_packet_scope(), infostring),
ett_quakeworld_connectionless_connect_infostring_key_value,
hf_quakeworld_connectionless_connect_infostring_key_value,
hf_quakeworld_connectionless_connect_infostring_key,
hf_quakeworld_connectionless_connect_infostring_value);
}
} else if (strcmp(c,"getchallenge") == 0) {
command = "Get Challenge";
command_len = Cmd_Argv_length(0);
} else if (strcmp(c,"rcon") == 0) {
const char* password;
int i;
char remaining[MAX_TEXT_SIZE+1];
proto_tree *argument_tree = NULL;
command = "Remote Command";
command_len = Cmd_Argv_length(0);
if (text_tree) {
proto_item *argument_item;
proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
tvb, offset, command_len, command);
argument_item = proto_tree_add_string(text_tree,
hf_quakeworld_connectionless_arguments,
tvb, offset + Cmd_Argv_start(1), len - Cmd_Argv_start(1),
text + Cmd_Argv_start(1));
argument_tree = proto_item_add_subtree(argument_item,
ett_quakeworld_connectionless_arguments);
command_finished=TRUE;
}
password = Cmd_Argv(1);
if (argument_tree) {
proto_tree_add_string(argument_tree,
hf_quakeworld_connectionless_rcon_password,
tvb,
offset + Cmd_Argv_start(1),
Cmd_Argv_length(1), password);
}
remaining[0] = '\0';
for (i=2; i<Cmd_Argc() ; i++) {
g_strlcat (remaining, Cmd_Argv(i), MAX_TEXT_SIZE+1);
g_strlcat (remaining, " ", MAX_TEXT_SIZE+1);
}
if (text_tree) {
proto_tree_add_string(argument_tree,
hf_quakeworld_connectionless_rcon_command,
tvb, offset + Cmd_Argv_start(2),
Cmd_Argv_start(Cmd_Argc()-1) + Cmd_Argv_length(Cmd_Argc()-1) -
Cmd_Argv_start(2),
remaining);
}
} else if (c[0]==A2A_PING && ( c[1]=='\0' || c[1]=='\n')) {
command = "Ping";
command_len = 1;
} else if (c[0]==A2A_ACK && ( c[1]=='\0' || c[1]=='\n')) {
command = "Ack";
command_len = 1;
} else {
command = "Unknown";
command_len = len - 1;
}
}
else {
/* server to client commands */
if (text[0] == S2C_CONNECTION) {
command = "Connected";
command_len = 1;
} else if (text[0] == A2C_CLIENT_COMMAND) {
command = "Client Command";
command_len = 1;
/* stringz (command), stringz (localid) */
} else if (text[0] == A2C_PRINT) {
command = "Print";
command_len = 1;
/* string */
} else if (text[0] == A2A_PING) {
command = "Ping";
command_len = 1;
} else if (text[0] == S2C_CHALLENGE) {
command = "Challenge";
command_len = 1;
/* string, conversion */
} else {
command = "Unknown";
command_len = len - 1;
}
}
col_append_fstr(pinfo->cinfo, COL_INFO, " %s", command);
if (!command_finished) {
proto_tree_add_string(text_tree, hf_quakeworld_connectionless_command,
tvb, offset, command_len, command);
}
/*offset += len;*/
}
