mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-09-21 13:34:59 +02:00
Update more controller commands, now that we have kvline support
This commit is contained in:
Nick Mathewson
parent
dab35386ca
commit
d8b3ec865d
@ -184,6 +184,17 @@ control_cmd_parse_args(const char *command,
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return result;
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}
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/**
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* Return true iff <b>lines</b> contains <b>flags</b> as a no-value
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* (keyword-only) entry.
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**/
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static bool
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config_lines_contain_flag(const config_line_t *lines, const char *flag)
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{
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const config_line_t *line = config_line_find_case(lines, flag);
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return line && !strcmp(line->value, "");
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}
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/** Called when we receive a SETCONF message: parse the body and try
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* to update our configuration. Reply with a DONE or ERROR message.
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* Modifies the contents of body.*/
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@ -370,15 +381,19 @@ handle_control_setevents(control_connection_t *conn,
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return 0;
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}
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static const control_cmd_syntax_t saveconf_syntax = {
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.max_args = 0,
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.accept_keywords = true,
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.kvline_flags=KV_OMIT_VALS,
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};
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/** Called when we get a SAVECONF command. Try to flush the current options to
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* disk, and report success or failure. */
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static int
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handle_control_saveconf(control_connection_t *conn, uint32_t len,
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const char *body)
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handle_control_saveconf(control_connection_t *conn,
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const control_cmd_args_t *args)
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{
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(void) len;
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int force = !strcmpstart(body, "FORCE");
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bool force = config_lines_contain_flag(args->kwargs, "FORCE");
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const or_options_t *options = get_options();
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if ((!force && options->IncludeUsed) || options_save_current() < 0) {
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connection_write_str_to_buf(
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@ -620,30 +635,27 @@ address_is_invalid_mapaddress_target(const char *addr)
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return address_is_invalid_destination(addr, 1);
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}
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static const control_cmd_syntax_t mapaddress_syntax = {
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.max_args=0,
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.accept_keywords=true,
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};
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/** Called when we get a MAPADDRESS command; try to bind all listed addresses,
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* and report success or failure. */
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static int
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handle_control_mapaddress(control_connection_t *conn, uint32_t len,
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const char *body)
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handle_control_mapaddress(control_connection_t *conn,
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const control_cmd_args_t *args)
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{
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smartlist_t *elts;
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smartlist_t *lines;
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smartlist_t *reply;
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char *r;
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size_t sz;
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(void) len; /* body is NUL-terminated, so it's safe to ignore the length. */
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lines = smartlist_new();
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elts = smartlist_new();
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reply = smartlist_new();
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smartlist_split_string(lines, body, " ",
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SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
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SMARTLIST_FOREACH_BEGIN(lines, char *, line) {
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tor_strlower(line);
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smartlist_split_string(elts, line, "=", 0, 2);
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if (smartlist_len(elts) == 2) {
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const char *from = smartlist_get(elts,0);
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const char *to = smartlist_get(elts,1);
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const config_line_t *line;
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for (line = args->kwargs; line; line = line->next) {
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const char *from = line->key;
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const char *to = line->value;
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{
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if (address_is_invalid_mapaddress_target(to)) {
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smartlist_add_asprintf(reply,
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"512-syntax error: invalid address '%s'", to);
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@ -658,10 +670,10 @@ handle_control_mapaddress(control_connection_t *conn, uint32_t len,
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type, tor_strdup(to));
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if (!address) {
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smartlist_add_asprintf(reply,
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"451-resource exhausted: skipping '%s'", line);
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"451-resource exhausted: skipping '%s=%s'", from,to);
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log_warn(LD_CONTROL,
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"Unable to allocate address for '%s' in MapAddress msg",
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safe_str_client(line));
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safe_str_client(to));
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} else {
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smartlist_add_asprintf(reply, "250-%s=%s", address, to);
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}
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@ -671,27 +683,16 @@ handle_control_mapaddress(control_connection_t *conn, uint32_t len,
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ADDRMAPSRC_CONTROLLER, &msg) < 0) {
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smartlist_add_asprintf(reply,
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"512-syntax error: invalid address mapping "
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" '%s': %s", line, msg);
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" '%s=%s': %s", from, to, msg);
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log_warn(LD_CONTROL,
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"Skipping invalid argument '%s' in MapAddress msg: %s",
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line, msg);
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"Skipping invalid argument '%s=%s' in MapAddress msg: %s",
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from, to, msg);
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} else {
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smartlist_add_asprintf(reply, "250-%s", line);
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smartlist_add_asprintf(reply, "250-%s=%s", from, to);
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}
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}
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} else {
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smartlist_add_asprintf(reply, "512-syntax error: mapping '%s' is "
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"not of expected form 'foo=bar'.", line);
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log_info(LD_CONTROL, "Skipping MapAddress '%s': wrong "
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"number of items.",
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safe_str_client(line));
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}
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SMARTLIST_FOREACH(elts, char *, cp, tor_free(cp));
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smartlist_clear(elts);
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} SMARTLIST_FOREACH_END(line);
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SMARTLIST_FOREACH(lines, char *, cp, tor_free(cp));
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smartlist_free(lines);
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smartlist_free(elts);
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}
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if (smartlist_len(reply)) {
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((char*)smartlist_get(reply,smartlist_len(reply)-1))[3] = ' ';
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@ -931,36 +932,36 @@ handle_control_extendcircuit(control_connection_t *conn, uint32_t len,
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return 0;
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}
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static const control_cmd_syntax_t setcircuitpurpose_syntax = {
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.max_args=1,
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.accept_keywords=true,
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};
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/** Called when we get a SETCIRCUITPURPOSE message. If we can find the
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* circuit and it's a valid purpose, change it. */
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static int
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handle_control_setcircuitpurpose(control_connection_t *conn,
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uint32_t len, const char *body)
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const control_cmd_args_t *args)
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{
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origin_circuit_t *circ = NULL;
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uint8_t new_purpose;
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smartlist_t *args;
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(void) len; /* body is NUL-terminated, so it's safe to ignore the length. */
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const char *circ_id = smartlist_get(args->args,0);
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args = getargs_helper("SETCIRCUITPURPOSE", conn, body, 2, -1);
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if (!args)
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goto done;
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if (!(circ = get_circ(smartlist_get(args,0)))) {
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connection_printf_to_buf(conn, "552 Unknown circuit \"%s\"\r\n",
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(char*)smartlist_get(args, 0));
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if (!(circ = get_circ(circ_id))) {
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connection_printf_to_buf(conn, "552 Unknown circuit \"%s\"\r\n", circ_id);
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goto done;
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}
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{
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const char *purp = find_element_starting_with(args,1,"PURPOSE=");
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const config_line_t *purp = config_line_find_case(args->kwargs, "PURPOSE");
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if (!purp) {
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connection_write_str_to_buf("552 No purpose given\r\n", conn);
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goto done;
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}
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new_purpose = circuit_purpose_from_string(purp);
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new_purpose = circuit_purpose_from_string(purp->value);
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if (new_purpose == CIRCUIT_PURPOSE_UNKNOWN) {
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connection_printf_to_buf(conn, "552 Unknown purpose \"%s\"\r\n", purp);
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connection_printf_to_buf(conn, "552 Unknown purpose \"%s\"\r\n",
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purp->value);
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goto done;
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}
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}
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@ -969,54 +970,50 @@ handle_control_setcircuitpurpose(control_connection_t *conn,
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connection_write_str_to_buf("250 OK\r\n", conn);
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done:
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if (args) {
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SMARTLIST_FOREACH(args, char *, cp, tor_free(cp));
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smartlist_free(args);
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}
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return 0;
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}
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static const char *attachstream_keywords[] = {
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"HOP", NULL
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};
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static const control_cmd_syntax_t attachstream_syntax = {
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.min_args=2, .max_args=2,
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.accept_keywords=true,
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.allowed_keywords=attachstream_keywords
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};
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/** Called when we get an ATTACHSTREAM message. Try to attach the requested
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* stream, and report success or failure. */
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static int
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handle_control_attachstream(control_connection_t *conn, uint32_t len,
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const char *body)
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handle_control_attachstream(control_connection_t *conn,
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const control_cmd_args_t *args)
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{
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entry_connection_t *ap_conn = NULL;
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origin_circuit_t *circ = NULL;
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int zero_circ;
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smartlist_t *args;
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crypt_path_t *cpath=NULL;
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int hop=0, hop_line_ok=1;
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(void) len;
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const char *stream_id = smartlist_get(args->args, 0);
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const char *circ_id = smartlist_get(args->args, 1);
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int zero_circ = !strcmp(circ_id, "0");
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const config_line_t *hoparg = config_line_find_case(args->kwargs, "HOP");
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args = getargs_helper("ATTACHSTREAM", conn, body, 2, -1);
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if (!args)
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if (!(ap_conn = get_stream(stream_id))) {
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connection_printf_to_buf(conn, "552 Unknown stream \"%s\"\r\n", stream_id);
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return 0;
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} else if (!zero_circ && !(circ = get_circ(circ_id))) {
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connection_printf_to_buf(conn, "552 Unknown circuit \"%s\"\r\n", circ_id);
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return 0;
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zero_circ = !strcmp("0", (char*)smartlist_get(args,1));
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if (!(ap_conn = get_stream(smartlist_get(args, 0)))) {
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connection_printf_to_buf(conn, "552 Unknown stream \"%s\"\r\n",
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(char*)smartlist_get(args, 0));
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} else if (!zero_circ && !(circ = get_circ(smartlist_get(args, 1)))) {
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connection_printf_to_buf(conn, "552 Unknown circuit \"%s\"\r\n",
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(char*)smartlist_get(args, 1));
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} else if (circ) {
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const char *hopstring = find_element_starting_with(args,2,"HOP=");
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if (hopstring) {
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hopstring += strlen("HOP=");
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hop = (int) tor_parse_ulong(hopstring, 10, 0, INT_MAX,
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if (hoparg) {
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hop = (int) tor_parse_ulong(hoparg->value, 10, 0, INT_MAX,
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&hop_line_ok, NULL);
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if (!hop_line_ok) { /* broken hop line */
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connection_printf_to_buf(conn, "552 Bad value hop=%s\r\n", hopstring);
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connection_printf_to_buf(conn, "552 Bad value hop=%s\r\n",
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hoparg->value);
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return 0;
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}
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}
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}
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SMARTLIST_FOREACH(args, char *, cp, tor_free(cp));
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smartlist_free(args);
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if (!ap_conn || (!zero_circ && !circ) || !hop_line_ok)
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return 0;
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if (ENTRY_TO_CONN(ap_conn)->state != AP_CONN_STATE_CONTROLLER_WAIT &&
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ENTRY_TO_CONN(ap_conn)->state != AP_CONN_STATE_CONNECT_WAIT &&
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@ -1071,59 +1068,49 @@ handle_control_attachstream(control_connection_t *conn, uint32_t len,
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return 0;
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}
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static const char *postdescriptor_keywords[] = {
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"cache", "purpose", NULL,
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};
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static const control_cmd_syntax_t postdescriptor_syntax = {
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.max_args = 0,
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.accept_keywords = true,
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.allowed_keywords = postdescriptor_keywords,
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.want_object = true,
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};
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/** Called when we get a POSTDESCRIPTOR message. Try to learn the provided
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* descriptor, and report success or failure. */
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static int
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handle_control_postdescriptor(control_connection_t *conn, uint32_t len,
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const char *body)
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handle_control_postdescriptor(control_connection_t *conn,
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const control_cmd_args_t *args)
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{
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char *desc;
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const char *msg=NULL;
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uint8_t purpose = ROUTER_PURPOSE_GENERAL;
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int cache = 0; /* eventually, we may switch this to 1 */
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const config_line_t *line;
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const char *cp = memchr(body, '\n', len);
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if (cp == NULL) {
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connection_printf_to_buf(conn, "251 Empty body\r\n");
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return 0;
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line = config_line_find_case(args->kwargs, "purpose");
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if (line) {
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purpose = router_purpose_from_string(line->value);
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connection_printf_to_buf(conn, "552 Unknown purpose \"%s\"\r\n",
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line->value);
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goto done;
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}
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++cp;
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char *cmdline = tor_memdup_nulterm(body, cp-body);
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smartlist_t *args = smartlist_new();
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smartlist_split_string(args, cmdline, " ",
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SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
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SMARTLIST_FOREACH_BEGIN(args, char *, option) {
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if (!strcasecmpstart(option, "purpose=")) {
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option += strlen("purpose=");
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purpose = router_purpose_from_string(option);
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if (purpose == ROUTER_PURPOSE_UNKNOWN) {
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connection_printf_to_buf(conn, "552 Unknown purpose \"%s\"\r\n",
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option);
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goto done;
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}
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} else if (!strcasecmpstart(option, "cache=")) {
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option += strlen("cache=");
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if (!strcasecmp(option, "no"))
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cache = 0;
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else if (!strcasecmp(option, "yes"))
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cache = 1;
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else {
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connection_printf_to_buf(conn, "552 Unknown cache request \"%s\"\r\n",
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option);
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goto done;
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}
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} else { /* unrecognized argument? */
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connection_printf_to_buf(conn,
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"512 Unexpected argument \"%s\" to postdescriptor\r\n", option);
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line = config_line_find_case(args->kwargs, "cache");
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if (line) {
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if (!strcasecmp(line->value, "no"))
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cache = 0;
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else if (!strcasecmp(line->value, "yes"))
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cache = 1;
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else {
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connection_printf_to_buf(conn, "552 Unknown cache request \"%s\"\r\n",
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line->value);
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goto done;
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}
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} SMARTLIST_FOREACH_END(option);
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}
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read_escaped_data(cp, len-(cp-body), &desc);
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switch (router_load_single_router(desc, purpose, cache, &msg)) {
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switch (router_load_single_router(args->object, purpose, cache, &msg)) {
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case -1:
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if (!msg) msg = "Could not parse descriptor";
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connection_printf_to_buf(conn, "554 %s\r\n", msg);
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@ -1137,11 +1124,7 @@ handle_control_postdescriptor(control_connection_t *conn, uint32_t len,
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break;
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}
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tor_free(desc);
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done:
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SMARTLIST_FOREACH(args, char *, arg, tor_free(arg));
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smartlist_free(args);
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tor_free(cmdline);
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return 0;
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}
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@ -1230,38 +1213,29 @@ handle_control_closestream(control_connection_t *conn,
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return 0;
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}
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static const control_cmd_syntax_t closecircuit_syntax = {
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.min_args=1, .max_args=1,
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.accept_keywords=true,
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.kvline_flags=KV_OMIT_VALS,
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// XXXX we might want to exclude unrecognized flags, but for now we
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// XXXX just ignore them for backward compatibility.
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};
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/** Called when we get a CLOSECIRCUIT command; try to close the named circuit
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* and report success or failure. */
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static int
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handle_control_closecircuit(control_connection_t *conn, uint32_t len,
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const char *body)
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handle_control_closecircuit(control_connection_t *conn,
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const control_cmd_args_t *args)
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{
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const char *circ_id = smartlist_get(args->args, 0);
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origin_circuit_t *circ = NULL;
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int safe = 0;
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smartlist_t *args;
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(void) len;
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args = getargs_helper("CLOSECIRCUIT", conn, body, 1, -1);
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if (!args)
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if (!(circ=get_circ(circ_id))) {
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connection_printf_to_buf(conn, "552 Unknown circuit \"%s\"\r\n", circ_id);
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return 0;
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if (!(circ=get_circ(smartlist_get(args, 0))))
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connection_printf_to_buf(conn, "552 Unknown circuit \"%s\"\r\n",
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(char*)smartlist_get(args, 0));
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else {
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int i;
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for (i=1; i < smartlist_len(args); ++i) {
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if (!strcasecmp(smartlist_get(args, i), "IfUnused"))
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safe = 1;
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else
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log_info(LD_CONTROL, "Skipping unknown option %s",
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(char*)smartlist_get(args,i));
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}
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}
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SMARTLIST_FOREACH(args, char *, cp, tor_free(cp));
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smartlist_free(args);
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if (!circ)
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return 0;
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bool safe = config_lines_contain_flag(args->kwargs, "IfUnused");
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if (!safe || !circ->p_streams) {
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circuit_mark_for_close(TO_CIRCUIT(circ), END_CIRC_REASON_REQUESTED);
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@ -1271,36 +1245,43 @@ handle_control_closecircuit(control_connection_t *conn, uint32_t len,
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return 0;
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}
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static const control_cmd_syntax_t resolve_syntax = {
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.max_args=0,
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.accept_keywords=true,
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.kvline_flags=KV_OMIT_VALS,
|
||||
};
|
||||
|
||||
/** Called when we get a RESOLVE command: start trying to resolve
|
||||
* the listed addresses. */
|
||||
static int
|
||||
handle_control_resolve(control_connection_t *conn, uint32_t len,
|
||||
const char *body)
|
||||
handle_control_resolve(control_connection_t *conn,
|
||||
const control_cmd_args_t *args)
|
||||
{
|
||||
smartlist_t *args, *failed;
|
||||
smartlist_t *failed;
|
||||
int is_reverse = 0;
|
||||
(void) len; /* body is nul-terminated; it's safe to ignore the length */
|
||||
|
||||
if (!(conn->event_mask & (((event_mask_t)1)<<EVENT_ADDRMAP))) {
|
||||
log_warn(LD_CONTROL, "Controller asked us to resolve an address, but "
|
||||
"isn't listening for ADDRMAP events. It probably won't see "
|
||||
"the answer.");
|
||||
}
|
||||
args = smartlist_new();
|
||||
smartlist_split_string(args, body, " ",
|
||||
SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
|
||||
|
||||
{
|
||||
const char *modearg = find_element_starting_with(args, 0, "mode=");
|
||||
if (modearg && !strcasecmp(modearg, "mode=reverse"))
|
||||
const config_line_t *modearg = config_line_find_case(args->kwargs, "mode");
|
||||
if (modearg && !strcasecmp(modearg->value, "reverse"))
|
||||
is_reverse = 1;
|
||||
}
|
||||
failed = smartlist_new();
|
||||
SMARTLIST_FOREACH(args, const char *, arg, {
|
||||
if (!is_keyval_pair(arg)) {
|
||||
if (dnsserv_launch_request(arg, is_reverse, conn)<0)
|
||||
smartlist_add(failed, (char*)arg);
|
||||
}
|
||||
});
|
||||
for (const config_line_t *line = args->kwargs; line; line = line->next) {
|
||||
if (!strlen(line->value)) {
|
||||
const char *addr = line->key;
|
||||
if (dnsserv_launch_request(addr, is_reverse, conn)<0)
|
||||
smartlist_add(failed, (char*)addr);
|
||||
} else {
|
||||
// XXXX arguably we should reject unrecognized keyword arguments,
|
||||
// XXXX but the old implementation didn't do that.
|
||||
}
|
||||
}
|
||||
|
||||
send_control_done(conn);
|
||||
SMARTLIST_FOREACH(failed, const char *, arg, {
|
||||
@ -1308,8 +1289,6 @@ handle_control_resolve(control_connection_t *conn, uint32_t len,
|
||||
"internal", 0);
|
||||
});
|
||||
|
||||
SMARTLIST_FOREACH(args, char *, cp, tor_free(cp));
|
||||
smartlist_free(args);
|
||||
smartlist_free(failed);
|
||||
return 0;
|
||||
}
|
||||
@ -1443,30 +1422,33 @@ handle_control_dropguards(control_connection_t *conn,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const char *hsfetch_keywords[] = {
|
||||
"SERVER", NULL,
|
||||
};
|
||||
static const control_cmd_syntax_t hsfetch_syntax = {
|
||||
.min_args = 1, .max_args = 1,
|
||||
.accept_keywords = true,
|
||||
.allowed_keywords = hsfetch_keywords,
|
||||
.want_object = true,
|
||||
};
|
||||
|
||||
/** Implementation for the HSFETCH command. */
|
||||
static int
|
||||
handle_control_hsfetch(control_connection_t *conn, uint32_t len,
|
||||
const char *body)
|
||||
handle_control_hsfetch(control_connection_t *conn,
|
||||
const control_cmd_args_t *args)
|
||||
|
||||
{
|
||||
int i;
|
||||
char digest[DIGEST_LEN], *hsaddress = NULL, *arg1 = NULL, *desc_id = NULL;
|
||||
smartlist_t *args = NULL, *hsdirs = NULL;
|
||||
(void) len; /* body is nul-terminated; it's safe to ignore the length */
|
||||
static const char *hsfetch_command = "HSFETCH";
|
||||
char digest[DIGEST_LEN], *desc_id = NULL;
|
||||
smartlist_t *hsdirs = NULL;
|
||||
static const char *v2_str = "v2-";
|
||||
const size_t v2_str_len = strlen(v2_str);
|
||||
rend_data_t *rend_query = NULL;
|
||||
ed25519_public_key_t v3_pk;
|
||||
uint32_t version;
|
||||
|
||||
/* Make sure we have at least one argument, the HSAddress. */
|
||||
args = getargs_helper(hsfetch_command, conn, body, 1, -1);
|
||||
if (!args) {
|
||||
goto exit;
|
||||
}
|
||||
const char *hsaddress = NULL;
|
||||
|
||||
/* Extract the first argument (either HSAddress or DescID). */
|
||||
arg1 = smartlist_get(args, 0);
|
||||
const char *arg1 = smartlist_get(args->args, 0);
|
||||
/* Test if it's an HS address without the .onion part. */
|
||||
if (rend_valid_v2_service_id(arg1)) {
|
||||
hsaddress = arg1;
|
||||
@ -1490,18 +1472,11 @@ handle_control_hsfetch(control_connection_t *conn, uint32_t len,
|
||||
goto done;
|
||||
}
|
||||
|
||||
static const char *opt_server = "SERVER=";
|
||||
for (const config_line_t *line = args->kwargs; line; line = line->next) {
|
||||
if (!strcasecmp(line->key, "SERVER")) {
|
||||
const char *server = line->value;
|
||||
|
||||
/* Skip first argument because it's the HSAddress or DescID. */
|
||||
for (i = 1; i < smartlist_len(args); ++i) {
|
||||
const char *arg = smartlist_get(args, i);
|
||||
const node_t *node;
|
||||
|
||||
if (!strcasecmpstart(arg, opt_server)) {
|
||||
const char *server;
|
||||
|
||||
server = arg + strlen(opt_server);
|
||||
node = node_get_by_hex_id(server, 0);
|
||||
const node_t *node = node_get_by_hex_id(server, 0);
|
||||
if (!node) {
|
||||
connection_printf_to_buf(conn, "552 Server \"%s\" not found\r\n",
|
||||
server);
|
||||
@ -1514,9 +1489,7 @@ handle_control_hsfetch(control_connection_t *conn, uint32_t len,
|
||||
/* Valid server, add it to our local list. */
|
||||
smartlist_add(hsdirs, node->rs);
|
||||
} else {
|
||||
connection_printf_to_buf(conn, "513 Unexpected argument \"%s\"\r\n",
|
||||
arg);
|
||||
goto done;
|
||||
tor_assert_nonfatal_unreached();
|
||||
}
|
||||
}
|
||||
|
||||
@ -1532,9 +1505,8 @@ handle_control_hsfetch(control_connection_t *conn, uint32_t len,
|
||||
/* Using a descriptor ID, we force the user to provide at least one
|
||||
* hsdir server using the SERVER= option. */
|
||||
if (desc_id && (!hsdirs || !smartlist_len(hsdirs))) {
|
||||
connection_printf_to_buf(conn, "512 %s option is required\r\n",
|
||||
opt_server);
|
||||
goto done;
|
||||
connection_printf_to_buf(conn, "512 SERVER option is required\r\n");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* We are about to trigger HSDir fetch so send the OK now because after
|
||||
@ -1552,96 +1524,75 @@ handle_control_hsfetch(control_connection_t *conn, uint32_t len,
|
||||
}
|
||||
|
||||
done:
|
||||
SMARTLIST_FOREACH(args, char *, cp, tor_free(cp));
|
||||
smartlist_free(args);
|
||||
/* Contains data pointer that we don't own thus no cleanup. */
|
||||
smartlist_free(hsdirs);
|
||||
rend_data_free(rend_query);
|
||||
exit:
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const char *hspost_keywords[] = {
|
||||
"SERVER", "HSADDRESS", NULL
|
||||
};
|
||||
static const control_cmd_syntax_t hspost_syntax = {
|
||||
.min_args = 0, .max_args = 0,
|
||||
.accept_keywords = true,
|
||||
.want_object = true,
|
||||
.allowed_keywords = hspost_keywords
|
||||
};
|
||||
|
||||
/** Implementation for the HSPOST command. */
|
||||
static int
|
||||
handle_control_hspost(control_connection_t *conn,
|
||||
uint32_t len,
|
||||
const char *body)
|
||||
const control_cmd_args_t *args)
|
||||
{
|
||||
static const char *opt_server = "SERVER=";
|
||||
static const char *opt_hsaddress = "HSADDRESS=";
|
||||
smartlist_t *hs_dirs = NULL;
|
||||
const char *encoded_desc = body;
|
||||
size_t encoded_desc_len = len;
|
||||
const char *encoded_desc = args->object;
|
||||
size_t encoded_desc_len = args->object_len;
|
||||
const char *onion_address = NULL;
|
||||
const config_line_t *line;
|
||||
|
||||
char *cp = memchr(body, '\n', len);
|
||||
if (cp == NULL) {
|
||||
connection_printf_to_buf(conn, "251 Empty body\r\n");
|
||||
return 0;
|
||||
}
|
||||
char *argline = tor_strndup(body, cp-body);
|
||||
for (line = args->kwargs; line; line = line->next) {
|
||||
if (!strcasecmpstart(line->key, "SERVER")) {
|
||||
const char *server = line->value;
|
||||
const node_t *node = node_get_by_hex_id(server, 0);
|
||||
|
||||
smartlist_t *args = smartlist_new();
|
||||
|
||||
/* If any SERVER= or HSADDRESS= options were specified, try to parse
|
||||
* the options line. */
|
||||
if (!strcasecmpstart(argline, opt_server) ||
|
||||
!strcasecmpstart(argline, opt_hsaddress)) {
|
||||
/* encoded_desc begins after a newline character */
|
||||
cp = cp + 1;
|
||||
encoded_desc = cp;
|
||||
encoded_desc_len = len-(cp-body);
|
||||
|
||||
smartlist_split_string(args, argline, " ",
|
||||
SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
|
||||
SMARTLIST_FOREACH_BEGIN(args, const char *, arg) {
|
||||
if (!strcasecmpstart(arg, opt_server)) {
|
||||
const char *server = arg + strlen(opt_server);
|
||||
const node_t *node = node_get_by_hex_id(server, 0);
|
||||
|
||||
if (!node || !node->rs) {
|
||||
connection_printf_to_buf(conn, "552 Server \"%s\" not found\r\n",
|
||||
server);
|
||||
goto done;
|
||||
}
|
||||
/* Valid server, add it to our local list. */
|
||||
if (!hs_dirs)
|
||||
hs_dirs = smartlist_new();
|
||||
smartlist_add(hs_dirs, node->rs);
|
||||
} else if (!strcasecmpstart(arg, opt_hsaddress)) {
|
||||
const char *address = arg + strlen(opt_hsaddress);
|
||||
if (!hs_address_is_valid(address)) {
|
||||
connection_printf_to_buf(conn, "512 Malformed onion address\r\n");
|
||||
goto done;
|
||||
}
|
||||
onion_address = address;
|
||||
} else {
|
||||
connection_printf_to_buf(conn, "512 Unexpected argument \"%s\"\r\n",
|
||||
arg);
|
||||
if (!node || !node->rs) {
|
||||
connection_printf_to_buf(conn, "552 Server \"%s\" not found\r\n",
|
||||
server);
|
||||
goto done;
|
||||
}
|
||||
} SMARTLIST_FOREACH_END(arg);
|
||||
/* Valid server, add it to our local list. */
|
||||
if (!hs_dirs)
|
||||
hs_dirs = smartlist_new();
|
||||
smartlist_add(hs_dirs, node->rs);
|
||||
} else if (!strcasecmpstart(line->key, "HSADDRESS")) {
|
||||
const char *address = line->value;
|
||||
if (!hs_address_is_valid(address)) {
|
||||
connection_printf_to_buf(conn, "512 Malformed onion address\r\n");
|
||||
goto done;
|
||||
}
|
||||
onion_address = address;
|
||||
} else {
|
||||
tor_assert_nonfatal_unreached();
|
||||
}
|
||||
}
|
||||
|
||||
/* Handle the v3 case. */
|
||||
if (onion_address) {
|
||||
char *desc_str = NULL;
|
||||
read_escaped_data(encoded_desc, encoded_desc_len, &desc_str);
|
||||
if (hs_control_hspost_command(desc_str, onion_address, hs_dirs) < 0) {
|
||||
if (hs_control_hspost_command(encoded_desc, onion_address, hs_dirs) < 0) {
|
||||
connection_printf_to_buf(conn, "554 Invalid descriptor\r\n");
|
||||
} else {
|
||||
send_control_done(conn);
|
||||
}
|
||||
tor_free(desc_str);
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* From this point on, it is only v2. */
|
||||
|
||||
/* Read the dot encoded descriptor, and parse it. */
|
||||
/* parse it. */
|
||||
rend_encoded_v2_service_descriptor_t *desc =
|
||||
tor_malloc_zero(sizeof(rend_encoded_v2_service_descriptor_t));
|
||||
read_escaped_data(encoded_desc, encoded_desc_len, &desc->desc_str);
|
||||
desc->desc_str = tor_memdup_nulterm(encoded_desc, encoded_desc_len);
|
||||
|
||||
rend_service_descriptor_t *parsed = NULL;
|
||||
char *intro_content = NULL;
|
||||
@ -1675,10 +1626,7 @@ handle_control_hspost(control_connection_t *conn,
|
||||
tor_free(intro_content);
|
||||
rend_encoded_v2_service_descriptor_free(desc);
|
||||
done:
|
||||
tor_free(argline);
|
||||
smartlist_free(hs_dirs); /* Contents belong to the rend service code. */
|
||||
SMARTLIST_FOREACH(args, char *, arg, tor_free(arg));
|
||||
smartlist_free(args);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1742,21 +1690,21 @@ get_detached_onion_services(void)
|
||||
return detached_onion_services;
|
||||
}
|
||||
|
||||
static const char *add_onion_keywords[] = {
|
||||
"Port", "Flags", "MaxStreams", "ClientAuth", NULL
|
||||
};
|
||||
static const control_cmd_syntax_t add_onion_syntax = {
|
||||
.min_args = 1, .max_args = 1,
|
||||
.accept_keywords = true,
|
||||
.allowed_keywords = add_onion_keywords
|
||||
};
|
||||
|
||||
/** Called when we get a ADD_ONION command; parse the body, and set up
|
||||
* the new ephemeral Onion Service. */
|
||||
static int
|
||||
handle_control_add_onion(control_connection_t *conn,
|
||||
uint32_t len,
|
||||
const char *body)
|
||||
const control_cmd_args_t *args)
|
||||
{
|
||||
smartlist_t *args;
|
||||
int arg_len;
|
||||
(void) len; /* body is nul-terminated; it's safe to ignore the length */
|
||||
args = getargs_helper("ADD_ONION", conn, body, 2, -1);
|
||||
if (!args)
|
||||
return 0;
|
||||
arg_len = smartlist_len(args);
|
||||
|
||||
/* Parse all of the arguments that do not involve handling cryptographic
|
||||
* material first, since there's no reason to touch that at all if any of
|
||||
* the other arguments are malformed.
|
||||
@ -1769,36 +1717,28 @@ handle_control_add_onion(control_connection_t *conn,
|
||||
int max_streams = 0;
|
||||
int max_streams_close_circuit = 0;
|
||||
rend_auth_type_t auth_type = REND_NO_AUTH;
|
||||
/* Default to adding an anonymous hidden service if no flag is given */
|
||||
int non_anonymous = 0;
|
||||
for (int i = 1; i < arg_len; i++) {
|
||||
static const char *port_prefix = "Port=";
|
||||
static const char *flags_prefix = "Flags=";
|
||||
static const char *max_s_prefix = "MaxStreams=";
|
||||
static const char *auth_prefix = "ClientAuth=";
|
||||
const config_line_t *arg;
|
||||
|
||||
const char *arg = smartlist_get(args, (int)i);
|
||||
if (!strcasecmpstart(arg, port_prefix)) {
|
||||
for (arg = args->kwargs; arg; arg = arg->next) {
|
||||
if (!strcasecmp(arg->key, "Port")) {
|
||||
/* "Port=VIRTPORT[,TARGET]". */
|
||||
const char *port_str = arg + strlen(port_prefix);
|
||||
|
||||
rend_service_port_config_t *cfg =
|
||||
rend_service_parse_port_config(port_str, ",", NULL);
|
||||
rend_service_parse_port_config(arg->value, ",", NULL);
|
||||
if (!cfg) {
|
||||
connection_printf_to_buf(conn, "512 Invalid VIRTPORT/TARGET\r\n");
|
||||
goto out;
|
||||
}
|
||||
smartlist_add(port_cfgs, cfg);
|
||||
} else if (!strcasecmpstart(arg, max_s_prefix)) {
|
||||
} else if (!strcasecmp(arg->key, "MaxStreams")) {
|
||||
/* "MaxStreams=[0..65535]". */
|
||||
const char *max_s_str = arg + strlen(max_s_prefix);
|
||||
int ok = 0;
|
||||
max_streams = (int)tor_parse_long(max_s_str, 10, 0, 65535, &ok, NULL);
|
||||
max_streams = (int)tor_parse_long(arg->value, 10, 0, 65535, &ok, NULL);
|
||||
if (!ok) {
|
||||
connection_printf_to_buf(conn, "512 Invalid MaxStreams\r\n");
|
||||
goto out;
|
||||
}
|
||||
} else if (!strcasecmpstart(arg, flags_prefix)) {
|
||||
} else if (!strcasecmp(arg->key, "Flags")) {
|
||||
/* "Flags=Flag[,Flag]", where Flag can be:
|
||||
* * 'DiscardPK' - If tor generates the keypair, do not include it in
|
||||
* the response.
|
||||
@ -1821,8 +1761,7 @@ handle_control_add_onion(control_connection_t *conn,
|
||||
smartlist_t *flags = smartlist_new();
|
||||
int bad = 0;
|
||||
|
||||
smartlist_split_string(flags, arg + strlen(flags_prefix), ",",
|
||||
SPLIT_IGNORE_BLANK, 0);
|
||||
smartlist_split_string(flags, arg->value, ",", SPLIT_IGNORE_BLANK, 0);
|
||||
if (smartlist_len(flags) < 1) {
|
||||
connection_printf_to_buf(conn, "512 Invalid 'Flags' argument\r\n");
|
||||
bad = 1;
|
||||
@ -1851,11 +1790,12 @@ handle_control_add_onion(control_connection_t *conn,
|
||||
smartlist_free(flags);
|
||||
if (bad)
|
||||
goto out;
|
||||
} else if (!strcasecmpstart(arg, auth_prefix)) {
|
||||
|
||||
} else if (!strcasecmp(arg->key, "ClientAuth")) {
|
||||
char *err_msg = NULL;
|
||||
int created = 0;
|
||||
rend_authorized_client_t *client =
|
||||
add_onion_helper_clientauth(arg + strlen(auth_prefix),
|
||||
add_onion_helper_clientauth(arg->value,
|
||||
&created, &err_msg);
|
||||
if (!client) {
|
||||
if (err_msg) {
|
||||
@ -1888,7 +1828,7 @@ handle_control_add_onion(control_connection_t *conn,
|
||||
smartlist_add(auth_created_clients, client);
|
||||
}
|
||||
} else {
|
||||
connection_printf_to_buf(conn, "513 Invalid argument\r\n");
|
||||
tor_assert_nonfatal_unreached();
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
@ -1929,7 +1869,8 @@ handle_control_add_onion(control_connection_t *conn,
|
||||
char *key_new_blob = NULL;
|
||||
char *err_msg = NULL;
|
||||
|
||||
if (add_onion_helper_keyarg(smartlist_get(args, 0), discard_pk,
|
||||
const char *onionkey = smartlist_get(args->args, 0);
|
||||
if (add_onion_helper_keyarg(onionkey, discard_pk,
|
||||
&key_new_alg, &key_new_blob, &pk, &hs_version,
|
||||
&err_msg) < 0) {
|
||||
if (err_msg) {
|
||||
@ -2031,12 +1972,6 @@ handle_control_add_onion(control_connection_t *conn,
|
||||
// Do not free entries; they are the same as auth_clients
|
||||
smartlist_free(auth_created_clients);
|
||||
}
|
||||
|
||||
SMARTLIST_FOREACH(args, char *, cp, {
|
||||
memwipe(cp, 0, strlen(cp));
|
||||
tor_free(cp);
|
||||
});
|
||||
smartlist_free(args);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -2471,28 +2406,28 @@ static const control_cmd_def_t CONTROL_COMMANDS[] =
|
||||
MULTLINE_PARSED(loadconf, 0),
|
||||
ONE_LINE_PARSED(setevents, 0),
|
||||
ONE_LINE(authenticate, legacy, CMD_FL_WIPE),
|
||||
ONE_LINE(saveconf, legacy, 0),
|
||||
ONE_LINE_PARSED(saveconf, 0),
|
||||
ONE_LINE_PARSED(signal, 0),
|
||||
ONE_LINE_PARSED(takeownership, 0),
|
||||
ONE_LINE_PARSED(dropownership, 0),
|
||||
ONE_LINE(mapaddress, legacy, 0),
|
||||
ONE_LINE_PARSED(mapaddress, 0),
|
||||
ONE_LINE_PARSED(getinfo, 0),
|
||||
ONE_LINE(extendcircuit, legacy, 0),
|
||||
ONE_LINE(setcircuitpurpose, legacy, 0),
|
||||
ONE_LINE_PARSED(setcircuitpurpose, 0),
|
||||
OBSOLETE(setrouterpurpose),
|
||||
ONE_LINE(attachstream, legacy, 0),
|
||||
MULTLINE(postdescriptor, legacy, 0),
|
||||
ONE_LINE_PARSED(attachstream, 0),
|
||||
MULTLINE_PARSED(postdescriptor, 0),
|
||||
ONE_LINE_PARSED(redirectstream, 0),
|
||||
ONE_LINE_PARSED(closestream, 0),
|
||||
ONE_LINE(closecircuit, legacy, 0),
|
||||
ONE_LINE_PARSED(closecircuit, 0),
|
||||
ONE_LINE_PARSED(usefeature, 0),
|
||||
ONE_LINE(resolve, legacy, 0),
|
||||
ONE_LINE_PARSED(resolve, 0),
|
||||
ONE_LINE_PARSED(protocolinfo, 0),
|
||||
ONE_LINE(authchallenge, legacy, CMD_FL_WIPE),
|
||||
ONE_LINE_PARSED(dropguards, 0),
|
||||
ONE_LINE(hsfetch, legacy, 0),
|
||||
MULTLINE(hspost, legacy, 0),
|
||||
ONE_LINE(add_onion, legacy, CMD_FL_WIPE),
|
||||
ONE_LINE_PARSED(hsfetch, 0),
|
||||
MULTLINE_PARSED(hspost, 0),
|
||||
ONE_LINE_PARSED(add_onion, CMD_FL_WIPE),
|
||||
ONE_LINE_PARSED(del_onion, CMD_FL_WIPE),
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user