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Added SPDY/3 SETTINGS frame pack/unpack

This commit is contained in:
Tatsuhiro Tsujikawa 2012-03-08 23:49:26 +09:00
parent 643238813d
commit d05d29b507
5 changed files with 73 additions and 28 deletions
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71
lib/spdylay_frame.c
View File

@ -901,6 +901,10 @@ ssize_t spdylay_frame_pack_settings(uint8_t **buf_ptr, size_t *buflen_ptr,
{
ssize_t framelen = SPDYLAY_FRAME_HEAD_LENGTH+frame->hd.length;
int i, r;
if(frame->hd.version != SPDYLAY_PROTO_SPDY2 &&
frame->hd.version != SPDYLAY_PROTO_SPDY3) {
return SPDYLAY_ERR_UNSUPPORTED_VERSION;
}
r = spdylay_reserve_buffer(buf_ptr, buflen_ptr, framelen);
if(r != 0) {
return r;
@ -908,20 +912,29 @@ ssize_t spdylay_frame_pack_settings(uint8_t **buf_ptr, size_t *buflen_ptr,
memset(*buf_ptr, 0, framelen);
spdylay_frame_pack_ctrl_hd(*buf_ptr, &frame->hd);
spdylay_put_uint32be(&(*buf_ptr)[8], frame->niv);
for(i = 0; i < frame->niv; ++i) {
int off = i*8;
/* spdy/2 spec says ID is network byte order, but publicly
deployed server sends little endian host byte order. */
char *id_ptr = (char*)(&frame->iv[i].settings_id);
if(frame->hd.version == SPDYLAY_PROTO_SPDY2) {
for(i = 0; i < frame->niv; ++i) {
int off = i*8;
/* spdy/2 spec says ID is network byte order, but publicly
deployed server sends little endian host byte order. */
char *id_ptr = (char*)(&frame->iv[i].settings_id);
#ifdef WORDS_BIGENDIAN
(*buf_ptr)[12+off] = id_ptr[3];
(*buf_ptr)[12+off+1] = id_ptr[2];
(*buf_ptr)[12+off+2] = id_ptr[1];
(*buf_ptr)[12+off] = id_ptr[3];
(*buf_ptr)[12+off+1] = id_ptr[2];
(*buf_ptr)[12+off+2] = id_ptr[1];
#else /* !WORDS_BIGENDIAN */
memcpy(&(*buf_ptr)[12+off], id_ptr, 3);
memcpy(&(*buf_ptr)[12+off], id_ptr, 3);
#endif /* !WORDS_BIGENDIAN */
(*buf_ptr)[15+off] = frame->iv[i].flags;
spdylay_put_uint32be(&(*buf_ptr)[16+off], frame->iv[i].value);
(*buf_ptr)[15+off] = frame->iv[i].flags;
spdylay_put_uint32be(&(*buf_ptr)[16+off], frame->iv[i].value);
}
} else {
for(i = 0; i < frame->niv; ++i) {
int off = i*8;
spdylay_put_uint32be(&(*buf_ptr)[12+off], frame->iv[i].settings_id);
(*buf_ptr)[12+off] = frame->iv[i].flags;
spdylay_put_uint32be(&(*buf_ptr)[16+off], frame->iv[i].value);
}
}
return framelen;
}
@ -935,6 +948,10 @@ int spdylay_frame_unpack_settings(spdylay_settings *frame,
return SPDYLAY_ERR_INVALID_FRAME;
}
spdylay_frame_unpack_ctrl_hd(&frame->hd, head);
if(frame->hd.version != SPDYLAY_PROTO_SPDY2 &&
frame->hd.version != SPDYLAY_PROTO_SPDY3) {
return SPDYLAY_ERR_UNSUPPORTED_VERSION;
}
frame->niv = spdylay_get_uint32(payload);
if(payloadlen != 4+frame->niv*8) {
return SPDYLAY_ERR_INVALID_FRAME;
@ -943,20 +960,30 @@ int spdylay_frame_unpack_settings(spdylay_settings *frame,
if(frame->iv == NULL) {
return SPDYLAY_ERR_NOMEM;
}
for(i = 0; i < frame->niv; ++i) {
int off = i*8;
/* ID is little endian. See comments in
spdylay_frame_pack_settings(). */
frame->iv[i].settings_id = 0;
if(frame->hd.version == SPDYLAY_PROTO_SPDY2) {
for(i = 0; i < frame->niv; ++i) {
int off = i*8;
/* ID is little endian. See comments in
spdylay_frame_pack_settings(). */
frame->iv[i].settings_id = 0;
#ifdef WORDS_BIGENDIAN
*(char*)(&frame->iv[i].settings_id[1]) = &payload[4+off+2];
*(char*)(&frame->iv[i].settings_id[2]) = &payload[4+off+1];
*(char*)(&frame->iv[i].settings_id[3]) = &payload[4+off+0];
*(char*)(&frame->iv[i].settings_id[1]) = &payload[4+off+2];
*(char*)(&frame->iv[i].settings_id[2]) = &payload[4+off+1];
*(char*)(&frame->iv[i].settings_id[3]) = &payload[4+off+0];
#else /* !WORDS_BIGENDIAN */
memcpy(&frame->iv[i].settings_id, &payload[4+off], 3);
memcpy(&frame->iv[i].settings_id, &payload[4+off], 3);
#endif /* !WORDS_BIGENDIAN */
frame->iv[i].flags = payload[7+off];
frame->iv[i].value = spdylay_get_uint32(&payload[8+off]);
frame->iv[i].flags = payload[7+off];
frame->iv[i].value = spdylay_get_uint32(&payload[8+off]);
}
} else {
for(i = 0; i < frame->niv; ++i) {
int off = i*8;
frame->iv[i].settings_id = spdylay_get_uint32(&payload[4+off]) &
SPDYLAY_SETTINGS_ID_MASK;
frame->iv[i].flags = payload[4+off];
frame->iv[i].value = spdylay_get_uint32(&payload[8+off]);
}
}
return 0;
}

5
lib/spdylay_frame.h
View File

@ -37,6 +37,7 @@
#define SPDYLAY_LENGTH_MASK 0xffffff
#define SPDYLAY_VERSION_MASK 0x7fff
#define SPDYLAY_DELTA_WINDOW_SIZE_MASK 0x7fffffff
#define SPDYLAY_SETTINGS_ID_MASK 0xffffff
/* The length of DATA frame payload. */
#define SPDYLAY_DATA_PAYLOAD_LENGTH 4096
@ -353,6 +354,8 @@ int spdylay_frame_unpack_window_update(spdylay_window_update *frame,
* This function returns the size of packed frame if it succeeds, or
* returns one of the following negative error codes:
*
* SPDYLAY_ERR_UNSUPPORTED_VERSION
* The version is not supported.
* SPDYLAY_ERR_NOMEM
* Out of memory.
*/
@ -365,6 +368,8 @@ ssize_t spdylay_frame_pack_settings(uint8_t **buf_ptr, size_t *buflen_ptr,
* This function returns 0 if it succeeds or one of the following
* negative error codes:
*
* SPDYLAY_ERR_UNSUPPORTED_VERSION
* The version is not supported.
* SPDYLAY_ERR_INVALID_FRAME
* The input data are invalid.
* SPDYLAY_ERR_NOMEM

6
tests/main.c
View File

@ -165,8 +165,10 @@ int main(int argc, char* argv[])
test_spdylay_frame_pack_headers_spdy3) ||
!CU_add_test(pSuite, "frame_pack_window_update",
test_spdylay_frame_pack_window_update) ||
!CU_add_test(pSuite, "frame_pack_settings",
test_spdylay_frame_pack_settings) ||
!CU_add_test(pSuite, "frame_pack_settings_spdy2",
test_spdylay_frame_pack_settings_spdy2) ||
!CU_add_test(pSuite, "frame_pack_settings_spdy3",
test_spdylay_frame_pack_settings_spdy3) ||
!CU_add_test(pSuite, "frame_nv_sort", test_spdylay_frame_nv_sort) ||
!CU_add_test(pSuite, "frame_nv_downcase",
test_spdylay_frame_nv_downcase) ||

16
tests/spdylay_frame_test.c
View File

@ -442,7 +442,7 @@ void test_spdylay_frame_pack_window_update()
}
void test_spdylay_frame_pack_settings()
void test_spdylay_frame_pack_settings_version(uint16_t version)
{
spdylay_frame frame, oframe;
uint8_t *buf = NULL;
@ -461,7 +461,7 @@ void test_spdylay_frame_pack_settings()
iv[2].value = 65536;
spdylay_frame_settings_init
(&frame.settings, SPDYLAY_PROTO_SPDY2,
(&frame.settings, version,
SPDYLAY_FLAG_SETTINGS_CLEAR_PREVIOUSLY_PERSISTED_SETTINGS,
spdylay_frame_iv_copy(iv, 3), 3);
framelen = spdylay_frame_pack_settings(&buf, &buflen, &frame.settings);
@ -473,7 +473,7 @@ void test_spdylay_frame_pack_settings()
&buf[SPDYLAY_FRAME_HEAD_LENGTH],
framelen-SPDYLAY_FRAME_HEAD_LENGTH));
CU_ASSERT(SPDYLAY_PROTO_SPDY2 == oframe.settings.hd.version);
CU_ASSERT(version == oframe.settings.hd.version);
CU_ASSERT(SPDYLAY_SETTINGS == oframe.settings.hd.type);
CU_ASSERT(SPDYLAY_FLAG_SETTINGS_CLEAR_PREVIOUSLY_PERSISTED_SETTINGS ==
oframe.settings.hd.flags);
@ -491,6 +491,16 @@ void test_spdylay_frame_pack_settings()
spdylay_frame_settings_free(&oframe.settings);
}
void test_spdylay_frame_pack_settings_spdy2()
{
test_spdylay_frame_pack_settings_version(SPDYLAY_PROTO_SPDY2);
}
void test_spdylay_frame_pack_settings_spdy3()
{
test_spdylay_frame_pack_settings_version(SPDYLAY_PROTO_SPDY3);
}
void test_spdylay_frame_nv_sort()
{
char *nv[7];

3
tests/spdylay_frame_test.h
View File

@ -40,7 +40,8 @@ void test_spdylay_frame_pack_syn_reply_spdy3();
void test_spdylay_frame_pack_headers_spdy2();
void test_spdylay_frame_pack_headers_spdy3();
void test_spdylay_frame_pack_window_update();
void test_spdylay_frame_pack_settings();
void test_spdylay_frame_pack_settings_spdy2();
void test_spdylay_frame_pack_settings_spdy3();
void test_spdylay_frame_nv_sort();
void test_spdylay_frame_nv_downcase();
void test_spdylay_frame_nv_2to3();