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pulse-server: limit the amount of connections

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Set to 64, like pulseaudio. We might want to configure this.

See #1305
This commit is contained in:
Wim Taymans 2021-06-17 18:36:28 +02:00
parent 4aa80c7a71
commit 38c721993f
2 changed files with 27 additions and 18 deletions
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1
src/modules/module-protocol-pulse/internal.h
View file

@ -197,6 +197,7 @@ struct server {
struct spa_source *source;
struct spa_list clients;
uint32_t n_clients;
unsigned int activated:1;
};

44
src/modules/module-protocol-pulse/pulse-server.c
View file

@ -93,6 +93,7 @@
#define LISTEN_BACKLOG 32
#define MAX_FORMATS 32
#define MAX_CLIENTS 64
#include "format.c"
#include "volume.c"
@ -1675,6 +1676,7 @@ static void stream_process(void *data)
pd.missing = size;
pd.underrun = false;
}
pw_log_debug("produce %d", size);
buf->datas[0].chunk->offset = 0;
buf->datas[0].chunk->stride = stream->frame_size;
buf->datas[0].chunk->size = size;
@ -5355,6 +5357,7 @@ static bool client_detach(struct client *client)
/* remove from the `server->clients` list */
spa_list_remove(&client->link);
client->server->n_clients--;
client->server = NULL;
return true;
@ -5770,7 +5773,18 @@ on_connect(void *data, int fd, uint32_t mask)
struct sockaddr_storage name;
socklen_t length;
int client_fd, val, pid;
struct client *client;
struct client *client = NULL;
length = sizeof(name);
client_fd = accept4(fd, (struct sockaddr *) &name, &length, SOCK_CLOEXEC);
if (client_fd < 0)
goto error;
if (server->n_clients >= MAX_CLIENTS) {
close(client_fd);
errno = ECONNREFUSED;
goto error;
}
client = calloc(1, sizeof(struct client));
if (client == NULL)
@ -5778,14 +5792,24 @@ on_connect(void *data, int fd, uint32_t mask)
client->impl = impl;
client->ref = 1;
client->server = server;
client->connect_tag = SPA_ID_INVALID;
client->server = server;
spa_list_append(&server->clients, &client->link);
server->n_clients++;
pw_map_init(&client->streams, 16, 16);
spa_list_init(&client->out_messages);
spa_list_init(&client->operations);
spa_list_init(&client->pending_samples);
pw_log_debug(NAME": client %p fd:%d", client, client_fd);
client->source = pw_loop_add_io(impl->loop,
client_fd,
SPA_IO_ERR | SPA_IO_HUP | SPA_IO_IN,
true, on_client_data, client);
if (client->source == NULL)
goto error;
client->props = pw_properties_new(
PW_KEY_CLIENT_API, "pipewire-pulse",
NULL);
@ -5800,13 +5824,6 @@ on_connect(void *data, int fd, uint32_t mask)
if (client->routes == NULL)
goto error;
length = sizeof(name);
client_fd = accept4(fd, (struct sockaddr *) &name, &length, SOCK_CLOEXEC);
if (client_fd < 0)
goto error;
pw_log_debug(NAME": client %p fd:%d", client, client_fd);
if (server->addr.ss_family == AF_UNIX) {
#ifdef SO_PRIORITY
val = 6;
@ -5827,17 +5844,8 @@ on_connect(void *data, int fd, uint32_t mask)
if (setsockopt(client_fd, IPPROTO_IP, IP_TOS, &val, sizeof(val)) < 0)
pw_log_warn("setsockopt(IP_TOS) failed: %m");
}
pw_properties_set(client->props, PW_KEY_CLIENT_ACCESS, "restricted");
}
client->source = pw_loop_add_io(impl->loop,
client_fd,
SPA_IO_ERR | SPA_IO_HUP | SPA_IO_IN,
true, on_client_data, client);
if (client->source == NULL)
goto error;
return;
error:
pw_log_error(NAME" %p: failed to create client: %m", impl);