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limit the number of concurrent connections for all four protocols

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kick a client if it doesn't authenticate within 5s on ESD and native protocol


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@292 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-11-18 00:28:26 +00:00
parent c57d5deef6
commit eef235d879
4 changed files with 104 additions and 12 deletions
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37
polyp/protocol-native.c
View file

@ -50,6 +50,12 @@
#include "strlist.h"
#include "props.h"
/* Kick a client if it doesn't authenticate within this time */
#define AUTH_TIMEOUT 5
/* Don't accept more connection than this */
#define MAX_CONNECTIONS 10
struct connection;
struct pa_protocol_native;
@ -100,6 +106,7 @@ struct connection {
struct pa_idxset *record_streams, *output_streams;
uint32_t rrobin_index;
struct pa_subscription *subscription;
struct pa_time_event *auth_timeout_event;
};
struct pa_protocol_native {
@ -374,6 +381,9 @@ static void connection_free(struct connection *c) {
if (c->subscription)
pa_subscription_free(c->subscription);
if (c->auth_timeout_event)
c->protocol->core->mainloop->time_free(c->auth_timeout_event);
pa_xfree(c);
}
@ -746,6 +756,10 @@ static void command_auth(struct pa_pdispatch *pd, uint32_t command, uint32_t tag
}
c->authorized = 1;
if (c->auth_timeout_event) {
c->protocol->core->mainloop->time_free(c->auth_timeout_event);
c->auth_timeout_event = NULL;
}
}
pa_pstream_send_simple_ack(c->pstream, tag);
@ -1973,14 +1987,37 @@ static void client_kill_cb(struct pa_client *c) {
/*** socket server callbacks ***/
static void auth_timeout(struct pa_mainloop_api*m, struct pa_time_event *e, const struct timeval *tv, void *userdata) {
struct connection *c = userdata;
assert(m && tv && c && c->auth_timeout_event == e);
if (!c->authorized)
connection_free(c);
}
static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) {
struct pa_protocol_native *p = userdata;
struct connection *c;
assert(io && p);
if (pa_idxset_ncontents(p->connections)+1 > MAX_CONNECTIONS) {
pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.\n", MAX_CONNECTIONS);
pa_iochannel_free(io);
return;
}
c = pa_xmalloc(sizeof(struct connection));
c->authorized =!! p->public;
if (!c->authorized) {
struct timeval tv;
gettimeofday(&tv, NULL);
tv.tv_sec += AUTH_TIMEOUT;
c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c);
} else
c->auth_timeout_event = NULL;
c->protocol = p;
assert(p->core);
c->client = pa_client_new(p->core, "NATIVE", "Client");