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MEDIUM: tcp/http: add 'set-src-port' action
set-src-port works the same way as 'set-src' but for the source port. It's available in 'tcp-request connection' and 'http-request' actions.
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@ -3845,6 +3845,21 @@ http-request { allow | deny | tarpit | auth [realm <realm>] | redirect <rule> |
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When set-src is successful, the source port is set to 0.
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- set-src-port <expr> :
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Is used to set the source port address to the value of specified
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expression.
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<expr> Is a standard HAProxy expression formed by a sample-fetch
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followed by some converters.
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Example:
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http-request set-src-port hdr(x-port)
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http-request set-src-port int(4000)
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Be careful to use "set-src-port" after "set-src", because "set-src" sets
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the source port to 0.
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- "silent-drop" : this stops the evaluation of the rules and makes the
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client-facing connection suddenly disappear using a system-dependant way
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that tries to prevent the client from being notified. The effect it then
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@ -8689,6 +8704,20 @@ tcp-request connection <action> [{if | unless} <condition>]
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When set-src is successful, the source port is set to 0.
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- set-src-port <expr> :
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Is used to set the source port address to the value of specified
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expression.
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<expr> Is a standard HAProxy expression formed by a sample-fetch
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followed by some converters.
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Example:
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tcp-request connection set-src-port int(4000)
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Be careful to use "set-src-port" after "set-src", because "set-src" sets
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the source port to 0.
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- "silent-drop" :
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This stops the evaluation of the rules and makes the client-facing
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connection suddenly disappear using a system-dependant way that tries
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@ -1453,6 +1453,32 @@ enum act_return tcp_action_req_set_src(struct act_rule *rule, struct proxy *px,
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return ACT_RET_CONT;
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}
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/*
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* Execute the "set-src-port" action. May be called from {tcp,http}request
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* We must test the sin_family before setting the port
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*/
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enum act_return tcp_action_req_set_src_port(struct act_rule *rule, struct proxy *px,
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struct session *sess, struct stream *s, int flags)
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{
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struct connection *cli_conn;
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if ((cli_conn = objt_conn(sess->origin)) && conn_ctrl_ready(cli_conn)) {
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struct sample *smp;
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conn_get_from_addr(cli_conn);
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smp = sample_fetch_as_type(px, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->arg.expr, SMP_T_SINT);
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if (smp) {
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if (((struct sockaddr_storage *)&cli_conn->addr.from)->ss_family == AF_INET) {
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((struct sockaddr_in *)&cli_conn->addr.from)->sin_port = htons(smp->data.u.sint);
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} else if (((struct sockaddr_storage *)&cli_conn->addr.from)->ss_family == AF_INET6) {
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((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_port = htons(smp->data.u.sint);
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}
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}
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}
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return ACT_RET_CONT;
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}
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/* Executes the "silent-drop" action. May be called from {tcp,http}{request,response} */
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static enum act_return tcp_exec_action_silent_drop(struct act_rule *rule, struct proxy *px, struct session *sess, struct stream *strm, int flags)
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{
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@ -2061,7 +2087,7 @@ static int tcp_parse_tcp_req(char **args, int section_type, struct proxy *curpx,
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return -1;
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}
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/* parse "set-src" action */
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/* parse "set-src" and "set-src-port" actions */
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enum act_parse_ret tcp_parse_set_src(const char **args, int *orig_arg, struct proxy *px, struct act_rule *rule, char **err)
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{
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int cur_arg;
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@ -2091,6 +2117,8 @@ enum act_parse_ret tcp_parse_set_src(const char **args, int *orig_arg, struct pr
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if (!strcmp(args[*orig_arg-1], "set-src")) {
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rule->action_ptr = tcp_action_req_set_src;
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} else if (!strcmp(args[*orig_arg-1], "set-src-port")) {
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rule->action_ptr = tcp_action_req_set_src_port;
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} else {
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return ACT_RET_PRS_ERR;
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}
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@ -2493,6 +2521,7 @@ static struct srv_kw_list srv_kws = { "TCP", { }, {
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static struct action_kw_list tcp_req_conn_actions = {ILH, {
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{ "silent-drop", tcp_parse_silent_drop },
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{ "set-src", tcp_parse_set_src },
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{ "set-src-port", tcp_parse_set_src },
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{ /* END */ }
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}};
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@ -2509,6 +2538,7 @@ static struct action_kw_list tcp_res_cont_actions = {ILH, {
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static struct action_kw_list http_req_actions = {ILH, {
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{ "silent-drop", tcp_parse_silent_drop },
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{ "set-src", tcp_parse_set_src },
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{ "set-src-port", tcp_parse_set_src },
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{ /* END */ }
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}};
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