mirror of
https://github.com/ossrs/srs.git
synced 2025-02-14 20:31:56 +00:00
for bug #235, move functions of block and digest to struct.
This commit is contained in:
winlin
parent
ff5cdb1cc1
commit
5d883e2e29
2 changed files with 176 additions and 161 deletions
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@ -312,31 +312,17 @@ namespace _srs_internal
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return stream.read_4bytes();
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}
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// calc the offset of key,
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// the key->offset cannot be used as the offset of key.
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int srs_key_block_get_offset(key_block* key)
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{
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int max_offset_size = 764 - 128 - 4;
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int offset = 0;
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u_int8_t* pp = (u_int8_t*)&key->offset;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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return offset % max_offset_size;
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}
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// create new key block data.
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// if created, user must free it by srs_key_block_free
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void srs_key_block_init(key_block* key)
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void key_block::init()
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{
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key_block* key = this;
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key->offset = (int32_t)rand();
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key->random0 = NULL;
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key->random1 = NULL;
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int offset = srs_key_block_get_offset(key);
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int offset = key->offsets();
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srs_assert(offset >= 0);
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key->random0_size = offset;
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@ -356,11 +342,31 @@ namespace _srs_internal
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}
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}
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// calc the offset of key,
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// the key->offset cannot be used as the offset of key.
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int key_block::offsets()
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{
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key_block* key = this;
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int max_offset_size = 764 - 128 - 4;
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int offset = 0;
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u_int8_t* pp = (u_int8_t*)&key->offset;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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return offset % max_offset_size;
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}
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// parse key block from c1s1.
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// if created, user must free it by srs_key_block_free
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// @c1s1_key_bytes the key start bytes, maybe c1s1 or c1s1+764
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int srs_key_block_parse(key_block* key, char* c1s1_key_bytes)
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int key_block::parse(char* c1s1_key_bytes)
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{
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key_block* key = this;
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int ret = ERROR_SUCCESS;
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char* pp = c1s1_key_bytes + 764;
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@ -371,7 +377,7 @@ namespace _srs_internal
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key->random0 = NULL;
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key->random1 = NULL;
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int offset = srs_key_block_get_offset(key);
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int offset = key->offsets();
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srs_assert(offset >= 0);
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pp = c1s1_key_bytes;
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@ -396,8 +402,10 @@ namespace _srs_internal
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// free the block data create by
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// srs_key_block_init or srs_key_block_parse
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void srs_key_block_free(key_block* key)
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void key_block::free()
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{
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key_block* key = this;
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if (key->random0) {
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srs_freep(key->random0);
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}
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@ -406,31 +414,17 @@ namespace _srs_internal
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}
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}
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// calc the offset of digest,
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// the key->offset cannot be used as the offset of digest.
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int srs_digest_block_get_offset(digest_block* digest)
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{
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int max_offset_size = 764 - 32 - 4;
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int offset = 0;
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u_int8_t* pp = (u_int8_t*)&digest->offset;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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return offset % max_offset_size;
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}
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// create new digest block data.
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// if created, user must free it by srs_digest_block_free
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void srs_digest_block_init(digest_block* digest)
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void digest_block::init()
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{
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digest_block* digest = this;
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digest->offset = (int32_t)rand();
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digest->random0 = NULL;
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digest->random1 = NULL;
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int offset = srs_digest_block_get_offset(digest);
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int offset = digest->offsets();
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srs_assert(offset >= 0);
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digest->random0_size = offset;
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@ -449,12 +443,32 @@ namespace _srs_internal
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snprintf(digest->random1, digest->random1_size, "%s", RTMP_SIG_SRS_HANDSHAKE);
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}
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}
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// calc the offset of digest,
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// the key->offset cannot be used as the offset of digest.
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int digest_block::offsets()
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{
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digest_block* digest = this;
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int max_offset_size = 764 - 32 - 4;
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int offset = 0;
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u_int8_t* pp = (u_int8_t*)&digest->offset;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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offset += *pp++;
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return offset % max_offset_size;
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}
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// parse digest block from c1s1.
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// if created, user must free it by srs_digest_block_free
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// @c1s1_digest_bytes the digest start bytes, maybe c1s1 or c1s1+764
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int srs_digest_block_parse(digest_block* digest, char* c1s1_digest_bytes)
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int digest_block::parse(char* c1s1_digest_bytes)
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{
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digest_block* digest = this;
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int ret = ERROR_SUCCESS;
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char* pp = c1s1_digest_bytes;
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@ -465,7 +479,7 @@ namespace _srs_internal
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digest->random0 = NULL;
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digest->random1 = NULL;
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int offset = srs_digest_block_get_offset(digest);
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int offset = digest->offsets();
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srs_assert(offset >= 0);
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digest->random0_size = offset;
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@ -489,8 +503,10 @@ namespace _srs_internal
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// free the block data create by
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// srs_digest_block_init or srs_digest_block_parse
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void srs_digest_block_free(digest_block* digest)
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void digest_block::free()
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{
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digest_block* digest = this;
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if (digest->random0) {
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srs_freep(digest->random0);
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}
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@ -792,21 +808,21 @@ namespace _srs_internal
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version = __srs_stream_read_4bytes(_c1s1 + 4); // client c1 version
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if (_schema == srs_schema0) {
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if ((ret = srs_key_block_parse(&block0.key, _c1s1 + 8)) != ERROR_SUCCESS) {
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if ((ret = block0.key.parse(_c1s1 + 8)) != ERROR_SUCCESS) {
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srs_error("parse the c1 key failed. ret=%d", ret);
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return ret;
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}
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if ((ret = srs_digest_block_parse(&block1.digest, _c1s1 + 8 + 764)) != ERROR_SUCCESS) {
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if ((ret = block1.digest.parse(_c1s1 + 8 + 764)) != ERROR_SUCCESS) {
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srs_error("parse the c1 digest failed. ret=%d", ret);
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return ret;
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}
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srs_verbose("parse c1 key-digest success");
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} else if (_schema == srs_schema1) {
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if ((ret = srs_digest_block_parse(&block0.digest, _c1s1 + 8)) != ERROR_SUCCESS) {
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if ((ret = block0.digest.parse(_c1s1 + 8)) != ERROR_SUCCESS) {
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srs_error("parse the c1 key failed. ret=%d", ret);
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return ret;
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}
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if ((ret = srs_key_block_parse(&block1.key, _c1s1 + 8 + 764)) != ERROR_SUCCESS) {
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if ((ret = block1.key.parse(_c1s1 + 8 + 764)) != ERROR_SUCCESS) {
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srs_error("parse the c1 digest failed. ret=%d", ret);
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return ret;
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}
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@ -840,11 +856,11 @@ namespace _srs_internal
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// generate signature by schema
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if (_schema == srs_schema0) {
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srs_key_block_init(&block0.key);
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srs_digest_block_init(&block1.digest);
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block0.key.init();
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block1.digest.init();
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} else {
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srs_digest_block_init(&block0.digest);
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srs_key_block_init(&block1.key);
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block0.digest.init();
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block1.key.init();
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}
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schema = _schema;
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@ -941,8 +957,8 @@ namespace _srs_internal
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}
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if (schema == srs_schema0) {
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srs_key_block_init(&block0.key);
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srs_digest_block_init(&block1.digest);
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block0.key.init();
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block1.digest.init();
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// directly generate the public key.
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// @see: https://github.com/winlinvip/simple-rtmp-server/issues/148
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@ -953,8 +969,8 @@ namespace _srs_internal
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}
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srs_assert(pkey_size == 128);
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} else {
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srs_digest_block_init(&block0.digest);
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srs_key_block_init(&block1.key);
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block0.digest.init();
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block1.key.init();
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// directly generate the public key.
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// @see: https://github.com/winlinvip/simple-rtmp-server/issues/148
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@ -1048,11 +1064,11 @@ namespace _srs_internal
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}
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if (schema == srs_schema0) {
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srs_key_block_free(&block0.key);
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srs_digest_block_free(&block1.digest);
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block0.key.free();
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block1.digest.free();
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} else {
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srs_digest_block_free(&block0.digest);
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srs_key_block_free(&block1.key);
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block0.digest.free();
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block1.key.free();
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}
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}
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}
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@ -41,78 +41,6 @@ class SrsHandshakeBytes;
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namespace _srs_internal
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{
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/**
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* the schema type.
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*/
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enum srs_schema_type
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{
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srs_schema_invalid = 2,
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/**
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* key-digest sequence
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*/
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srs_schema0 = 0,
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/**
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* digest-key sequence
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* @remark, FMS requires the schema1(digest-key), or connect failed.
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*/
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//
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srs_schema1 = 1,
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};
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/**
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* 764bytes key structure
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* random-data: (offset)bytes
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* key-data: 128bytes
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* random-data: (764-offset-128-4)bytes
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* offset: 4bytes
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* @see also: http://blog.csdn.net/win_lin/article/details/13006803
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*/
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class key_block
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{
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public:
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// (offset)bytes
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char* random0;
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int random0_size;
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// 128bytes
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char key[128];
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// (764-offset-128-4)bytes
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char* random1;
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int random1_size;
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// 4bytes
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int32_t offset;
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};
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/**
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* 764bytes digest structure
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* offset: 4bytes
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* random-data: (offset)bytes
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* digest-data: 32bytes
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* random-data: (764-4-offset-32)bytes
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* @see also: http://blog.csdn.net/win_lin/article/details/13006803
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*/
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class digest_block
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{
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public:
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// 4bytes
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int32_t offset;
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// (offset)bytes
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char* random0;
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int random0_size;
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// 32bytes
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char digest[32];
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// (764-4-offset-32)bytes
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char* random1;
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int random1_size;
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};
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// the digest key generate size.
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#define __SRS_OpensslHashSize 512
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extern u_int8_t SrsGenuineFMSKey[];
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@ -159,40 +87,111 @@ namespace _srs_internal
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private:
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virtual int do_initialize();
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};
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/**
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* the schema type.
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*/
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enum srs_schema_type
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{
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srs_schema_invalid = 2,
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/**
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* key-digest sequence
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*/
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srs_schema0 = 0,
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/**
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* digest-key sequence
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* @remark, FMS requires the schema1(digest-key), or connect failed.
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*/
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//
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srs_schema1 = 1,
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};
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// calc the offset of key,
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// the key->offset cannot be used as the offset of key.
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int srs_key_block_get_offset(key_block* key);
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/**
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* 764bytes key structure
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* random-data: (offset)bytes
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* key-data: 128bytes
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* random-data: (764-offset-128-4)bytes
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* offset: 4bytes
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* @see also: http://blog.csdn.net/win_lin/article/details/13006803
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*/
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class key_block
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{
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public:
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// (offset)bytes
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char* random0;
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int random0_size;
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// 128bytes
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char key[128];
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// (764-offset-128-4)bytes
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char* random1;
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int random1_size;
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// 4bytes
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int32_t offset;
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public:
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// create new key block data.
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// if created, user must free it by srs_key_block_free
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void init();
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// calc the offset of key,
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// the key->offset cannot be used as the offset of key.
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int offsets();
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// parse key block from c1s1.
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// if created, user must free it by srs_key_block_free
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// @c1s1_key_bytes the key start bytes, maybe c1s1 or c1s1+764
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int parse(char* c1s1_key_bytes);
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// free the block data create by
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// srs_key_block_init or srs_key_block_parse
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void free();
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};
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// create new key block data.
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// if created, user must free it by srs_key_block_free
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void srs_key_block_init(key_block* key);
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/**
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* 764bytes digest structure
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* offset: 4bytes
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* random-data: (offset)bytes
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* digest-data: 32bytes
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* random-data: (764-4-offset-32)bytes
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* @see also: http://blog.csdn.net/win_lin/article/details/13006803
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*/
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class digest_block
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{
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public:
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// 4bytes
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int32_t offset;
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// (offset)bytes
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char* random0;
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int random0_size;
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// 32bytes
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char digest[32];
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// (764-4-offset-32)bytes
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char* random1;
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int random1_size;
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public:
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// create new digest block data.
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// if created, user must free it by srs_digest_block_free
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void init();
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// calc the offset of digest,
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// the key->offset cannot be used as the offset of digest.
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int offsets();
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// parse key block from c1s1.
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// if created, user must free it by srs_key_block_free
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// @c1s1_key_bytes the key start bytes, maybe c1s1 or c1s1+764
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int srs_key_block_parse(key_block* key, char* c1s1_key_bytes);
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// free the block data create by
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// srs_key_block_init or srs_key_block_parse
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void srs_key_block_free(key_block* key);
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// calc the offset of digest,
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// the key->offset cannot be used as the offset of digest.
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int srs_digest_block_get_offset(digest_block* digest);
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// create new digest block data.
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// if created, user must free it by srs_digest_block_free
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void srs_digest_block_init(digest_block* digest);
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// parse digest block from c1s1.
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// if created, user must free it by srs_digest_block_free
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// @c1s1_digest_bytes the digest start bytes, maybe c1s1 or c1s1+764
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int srs_digest_block_parse(digest_block* digest, char* c1s1_digest_bytes);
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// free the block data create by
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// srs_digest_block_init or srs_digest_block_parse
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void srs_digest_block_free(digest_block* digest);
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// parse digest block from c1s1.
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// if created, user must free it by srs_digest_block_free
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// @c1s1_digest_bytes the digest start bytes, maybe c1s1 or c1s1+764
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int parse(char* c1s1_digest_bytes);
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// free the block data create by
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// srs_digest_block_init or srs_digest_block_parse
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void free();
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};
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/**
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* copy whole c1s1 to bytes.
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