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use the correct handle when calling the read callback

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when calling isc_nm_read() on an HTTP socket, the read callback
was being run with the incorrect handle. this has been corrected.
This commit is contained in:
Evan Hunt
2021-04-21 17:35:07 -07:00
parent f0d75ee7c3
commit 7f367b0c7f
2 changed files with 29 additions and 17 deletions
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33
lib/isc/netmgr/http.c
View File

@@ -122,6 +122,7 @@ struct isc_nm_http_session {
size_t nsstreams;
isc_nmhandle_t *handle;
isc_nmhandle_t *client_httphandle;
isc_nmsocket_t *serversocket;
isc_nmiface_t server_iface;
@@ -412,11 +413,13 @@ finish_http_session(isc_nm_http_session_t *session) {
if (session->closed) {
return;
}
if (session->handle != NULL) {
if (!session->closed) {
session->closed = true;
isc_nm_cancelread(session->handle);
}
if (!ISC_LIST_EMPTY(session->cstreams)) {
http_cstream_t *cstream =
ISC_LIST_HEAD(session->cstreams);
@@ -426,7 +429,8 @@ finish_http_session(isc_nm_http_session_t *session) {
ISC_LIST_DEQUEUE(session->cstreams, cstream,
link);
cstream->read_cb(
session->handle, ISC_R_UNEXPECTED,
session->client_httphandle,
ISC_R_UNEXPECTED,
&(isc_region_t){ cstream->rbuf,
cstream->rbufsize },
cstream->read_cbarg);
@@ -437,6 +441,10 @@ finish_http_session(isc_nm_http_session_t *session) {
isc_nmhandle_detach(&session->handle);
}
if (session->client_httphandle != NULL) {
isc_nmhandle_detach(&session->client_httphandle);
}
INSIST(ISC_LIST_EMPTY(session->cstreams));
/* detach from server socket */
@@ -1049,15 +1057,24 @@ get_http_cstream(isc_nmsocket_t *sock, http_cstream_t **streamp) {
}
static void
http_call_connect_cb(isc_nmsocket_t *sock, isc_result_t result) {
http_call_connect_cb(isc_nmsocket_t *sock, isc_nm_http_session_t *session,
isc_result_t result) {
isc__nm_uvreq_t *req = NULL;
isc_nmhandle_t *httphandle = isc__nmhandle_get(sock, &sock->peer,
&sock->iface->addr);
REQUIRE(sock->connect_cb != NULL);
req = isc__nm_uvreq_get(sock->mgr, sock);
req->cb.connect = sock->connect_cb;
req->cbarg = sock->connect_cbarg;
req->handle = isc__nmhandle_get(sock, &sock->peer, &sock->iface->addr);
if (session != NULL) {
session->client_httphandle = httphandle;
req->handle = NULL;
isc_nmhandle_attach(httphandle, &req->handle);
} else {
req->handle = httphandle;
}
isc__nmsocket_clearcb(sock);
isc__nm_connectcb(sock, req, result, true);
@@ -1066,8 +1083,8 @@ http_call_connect_cb(isc_nmsocket_t *sock, isc_result_t result) {
static void
transport_connect_cb(isc_nmhandle_t *handle, isc_result_t result, void *cbarg) {
isc_nmsocket_t *http_sock = (isc_nmsocket_t *)cbarg;
isc_nm_http_session_t *session = NULL;
isc_nmsocket_t *transp_sock = NULL;
isc_nm_http_session_t *session = NULL;
http_cstream_t *cstream = NULL;
isc_mem_t *mctx = NULL;
@@ -1134,13 +1151,15 @@ transport_connect_cb(isc_nmhandle_t *handle, isc_result_t result, void *cbarg) {
}
http_transpost_tcp_nodelay(handle);
http_call_connect_cb(http_sock, result);
http_call_connect_cb(http_sock, session, result);
http_do_bio(session, NULL, NULL, NULL);
isc__nmsocket_detach(&http_sock);
return;
error:
http_call_connect_cb(http_sock, result);
http_call_connect_cb(http_sock, session, result);
if (http_sock->h2.connect.uri != NULL) {
isc_mem_free(mctx, http_sock->h2.connect.uri);
@@ -2361,7 +2380,7 @@ failed_read_cb(isc_result_t result, isc_nm_http_session_t *session) {
cstream = ISC_LIST_HEAD(session->cstreams);
while (cstream != NULL) {
http_cstream_t *next = ISC_LIST_NEXT(cstream, link);
cstream->read_cb(session->handle, result,
cstream->read_cb(session->client_httphandle, result,
&(isc_region_t){ cstream->rbuf,
cstream->rbufsize },
cstream->read_cbarg);

13
lib/isc/tests/doh_test.c
View File

@@ -581,20 +581,13 @@ timeout_retry_cb(isc_nmhandle_t *handle, isc_result_t eresult,
return;
}
/*
* XXX: We should be attaching to a readhandle in
* timeout_request_cb() and detaching it here, but we
* don't do this because the handle passed to this function
* is for the tcpsocket, not the httpsocket. This is a
* bug.
*/
/* isc_nmhandle_detach(&handle); */
isc_nmhandle_detach(&handle);
}
static void
timeout_request_cb(isc_nmhandle_t *handle, isc_result_t result, void *arg) {
isc_nmhandle_t *sendhandle = NULL;
/* isc_nmhandle_t *readhandle = NULL; */
isc_nmhandle_t *readhandle = NULL;
REQUIRE(VALID_NMHANDLE(handle));
@@ -608,7 +601,7 @@ timeout_request_cb(isc_nmhandle_t *handle, isc_result_t result, void *arg) {
.length = send_msg.len },
timeout_query_sent_cb, arg);
/* isc_nmhandle_attach(handle, &readhandle); */
isc_nmhandle_attach(handle, &readhandle);
isc_nm_read(handle, timeout_retry_cb, NULL);
return;