diff options
| author | OpenGnSys Support Team <soporte-og@soleta.eu> | 2019-08-28 16:34:00 +0200 |
|---|---|---|
| committer | OpenGnSys Support Team <soporte-og@soleta.eu> | 2019-08-28 17:16:01 +0200 |
| commit | 20dcb0a906b55c4e3f52bf2b994d696c4f42cc70 (patch) | |
| tree | c2576545298e5402ec6214087a4089745da75980 /sources/ogAdmServer.cpp | |
| parent | 881f532ee1c46b930af86976ea7f177c31482154 (diff) | |
#915 close connection to REST API if request is too long
If REST API request length is >= 4096 bytes, close the connection.
Diffstat (limited to 'sources/ogAdmServer.cpp')
| -rw-r--r-- | sources/ogAdmServer.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sources/ogAdmServer.cpp b/sources/ogAdmServer.cpp index 2168a5c..75f0a2c 100644 --- a/sources/ogAdmServer.cpp +++ b/sources/ogAdmServer.cpp @@ -122,6 +122,8 @@ enum og_client_state { OG_CLIENT_PROCESSING_REQUEST, }; +#define OG_MSG_REQUEST_MAXLEN 4096 + /* Shut down connection if there is no complete message after 10 seconds. */ #define OG_CLIENT_TIMEOUT 10 @@ -130,7 +132,7 @@ struct og_client { struct ev_timer timer; struct sockaddr_in addr; enum og_client_state state; - char buf[4096]; + char buf[OG_MSG_REQUEST_MAXLEN]; unsigned int buf_len; unsigned int msg_len; int keepalive_idx; @@ -4193,6 +4195,11 @@ static void og_client_read_cb(struct ev_loop *loop, struct ev_io *io, int events ev_timer_again(loop, &cli->timer); cli->buf_len += ret; + if (cli->buf_len >= sizeof(cli->buf)) { + syslog(LOG_ERR, "client request from %s:%hu is too long\n", + inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port)); + goto close; + } switch (cli->state) { case OG_CLIENT_RECEIVING_HEADER: |