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Don't change state in inbound_frame_handle_pad

This commit is contained in:
Tatsuhiro Tsujikawa 2014-02-11 16:24:21 +09:00
parent 6c40928fed
commit 9865b46905
1 changed files with 10 additions and 12 deletions
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22
lib/nghttp2_session.c
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@ -3383,9 +3383,10 @@ static int inbound_frame_set_settings_entry(nghttp2_inbound_frame *iframe)
} }
/* /*
* Checks PAD_HIGH and PAD_LOW flags and set next state * Checks PAD_HIGH and PAD_LOW flags and set iframe->left and
* accordingly. If padding is set, this function returns 1. If no * iframe->buflen accordingly. If padding is set, this function
* padding is set, this function returns 0. On error, returns -1. * returns 1. If no padding is set, this function returns 0. On error,
* returns -1.
*/ */
static int inbound_frame_handle_pad(nghttp2_inbound_frame *iframe, static int inbound_frame_handle_pad(nghttp2_inbound_frame *iframe,
nghttp2_frame_hd *hd) nghttp2_frame_hd *hd)
@ -3394,13 +3395,11 @@ static int inbound_frame_handle_pad(nghttp2_inbound_frame *iframe,
if((hd->flags & NGHTTP2_FLAG_PAD_LOW) == 0) { if((hd->flags & NGHTTP2_FLAG_PAD_LOW) == 0) {
return -1; return -1;
} }
iframe->state = NGHTTP2_IB_READ_NBYTE;
iframe->left = 2; iframe->left = 2;
iframe->buflen = 0; iframe->buflen = 0;
return 1; return 1;
} }
if(hd->flags & NGHTTP2_FLAG_PAD_LOW) { if(hd->flags & NGHTTP2_FLAG_PAD_LOW) {
iframe->state = NGHTTP2_IB_READ_NBYTE;
iframe->left = 1; iframe->left = 1;
iframe->buflen = 0; iframe->buflen = 0;
return 1; return 1;
@ -3507,10 +3506,11 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
} }
break; break;
} }
if(rv == 0) { if(rv == 1) {
iframe->state = NGHTTP2_IB_READ_DATA; iframe->state = NGHTTP2_IB_READ_NBYTE;
break; break;
} }
iframe->state = NGHTTP2_IB_READ_DATA;
break; break;
} }
case NGHTTP2_HEADERS: case NGHTTP2_HEADERS:
@ -3527,6 +3527,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
break; break;
} }
if(rv == 1) { if(rv == 1) {
iframe->state = NGHTTP2_IB_READ_NBYTE;
break; break;
} }
if(iframe->frame.hd.flags & NGHTTP2_FLAG_PRIORITY) { if(iframe->frame.hd.flags & NGHTTP2_FLAG_PRIORITY) {
@ -3909,8 +3910,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
nghttp2_inbound_frame_reset(session); nghttp2_inbound_frame_reset(session);
break; break;
case NGHTTP2_IB_EXPECT_CONTINUATION: case NGHTTP2_IB_EXPECT_CONTINUATION:
case NGHTTP2_IB_IGN_CONTINUATION: { case NGHTTP2_IB_IGN_CONTINUATION:
nghttp2_inbound_state state_back;
#ifdef DEBUGBUILD #ifdef DEBUGBUILD
if(iframe->state == NGHTTP2_IB_EXPECT_CONTINUATION) { if(iframe->state == NGHTTP2_IB_EXPECT_CONTINUATION) {
fprintf(stderr, "[IB_EXPECT_CONTINUATION]\n"); fprintf(stderr, "[IB_EXPECT_CONTINUATION]\n");
@ -3947,7 +3947,6 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
NGHTTP2_FLAG_PAD_HIGH | NGHTTP2_FLAG_PAD_LOW); NGHTTP2_FLAG_PAD_HIGH | NGHTTP2_FLAG_PAD_LOW);
iframe->frame.hd.length += cont_hd.length; iframe->frame.hd.length += cont_hd.length;
state_back = iframe->state;
rv = inbound_frame_handle_pad(iframe, &cont_hd); rv = inbound_frame_handle_pad(iframe, &cont_hd);
if(rv < 0) { if(rv < 0) {
busy = 1; busy = 1;
@ -3960,7 +3959,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
break; break;
} }
if(rv == 1) { if(rv == 1) {
if(state_back == NGHTTP2_IB_EXPECT_CONTINUATION) { if(iframe->state == NGHTTP2_IB_EXPECT_CONTINUATION) {
iframe->state = NGHTTP2_IB_READ_PAD_CONTINUATION; iframe->state = NGHTTP2_IB_READ_PAD_CONTINUATION;
} else { } else {
iframe->state = NGHTTP2_IB_IGN_PAD_CONTINUATION; iframe->state = NGHTTP2_IB_IGN_PAD_CONTINUATION;
@ -3975,7 +3974,6 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
iframe->state = NGHTTP2_IB_IGN_HEADER_BLOCK; iframe->state = NGHTTP2_IB_IGN_HEADER_BLOCK;
} }
break; break;
}
case NGHTTP2_IB_READ_PAD_CONTINUATION: case NGHTTP2_IB_READ_PAD_CONTINUATION:
case NGHTTP2_IB_IGN_PAD_CONTINUATION: case NGHTTP2_IB_IGN_PAD_CONTINUATION:
#ifdef DEBUGBUILD #ifdef DEBUGBUILD