diff options
Diffstat (limited to 'libavformat/srtp.c')
| -rw-r--r-- | libavformat/srtp.c | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/libavformat/srtp.c b/libavformat/srtp.c index 1f068d4c9c..a93d03d539 100644 --- a/libavformat/srtp.c +++ b/libavformat/srtp.c @@ -243,8 +243,8 @@ int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len, int rtcp, hmac_size, padding; uint8_t *buf; - if (len < 12) - return 0; + if (len < 8) + return AVERROR_INVALIDDATA; rtcp = RTP_PT_IS_RTCP(in[1]); hmac_size = rtcp ? s->rtcp_hmac_size : s->rtp_hmac_size; @@ -267,6 +267,10 @@ int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len, } else { int ext, csrc; int seq = AV_RB16(buf + 2); + + if (len < 12) + return AVERROR_INVALIDDATA; + ssrc = AV_RB32(buf + 8); if (seq < s->seq_largest) @@ -326,9 +330,7 @@ static const char *aes128_80_key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn"; static const uint8_t rtp_aes128_80[] = { // RTP header - 0x80, 0xe0, 0x12, 0x34, - 0x12, 0x34, 0x56, 0x78, - 0x12, 0x34, 0x56, 0x78, + 0x80, 0xe0, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, // encrypted payload 0x62, 0x69, 0x76, 0xca, 0xc5, // HMAC @@ -337,15 +339,10 @@ static const uint8_t rtp_aes128_80[] = { static const uint8_t rtcp_aes128_80[] = { // RTCP header - 0x81, 0xc9, 0x00, 0x07, - 0x12, 0x34, 0x56, 0x78, + 0x81, 0xc9, 0x00, 0x07, 0x12, 0x34, 0x56, 0x78, // encrypted payload - 0x8a, 0xac, 0xdc, 0xa5, - 0x4c, 0xf6, 0x78, 0xa6, - 0x62, 0x8f, 0x24, 0xda, - 0x6c, 0x09, 0x3f, 0xa9, - 0x28, 0x7a, 0xb5, 0x7f, - 0x1f, 0x0f, 0xc9, 0x35, + 0x8a, 0xac, 0xdc, 0xa5, 0x4c, 0xf6, 0x78, 0xa6, 0x62, 0x8f, 0x24, 0xda, + 0x6c, 0x09, 0x3f, 0xa9, 0x28, 0x7a, 0xb5, 0x7f, 0x1f, 0x0f, 0xc9, 0x35, // RTCP index 0x80, 0x00, 0x00, 0x03, // HMAC @@ -356,9 +353,7 @@ static const char *aes128_32_key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn"; static const uint8_t rtp_aes128_32[] = { // RTP header - 0x80, 0xe0, 0x12, 0x34, - 0x12, 0x34, 0x56, 0x78, - 0x12, 0x34, 0x56, 0x78, + 0x80, 0xe0, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, // encrypted payload 0x62, 0x69, 0x76, 0xca, 0xc5, // HMAC @@ -367,15 +362,10 @@ static const uint8_t rtp_aes128_32[] = { static const uint8_t rtcp_aes128_32[] = { // RTCP header - 0x81, 0xc9, 0x00, 0x07, - 0x12, 0x34, 0x56, 0x78, + 0x81, 0xc9, 0x00, 0x07, 0x12, 0x34, 0x56, 0x78, // encrypted payload - 0x35, 0xe9, 0xb5, 0xff, - 0x0d, 0xd1, 0xde, 0x70, - 0x74, 0x10, 0xaa, 0x1b, - 0xb2, 0x8d, 0xf0, 0x20, - 0x02, 0x99, 0x6b, 0x1b, - 0x0b, 0xd0, 0x47, 0x34, + 0x35, 0xe9, 0xb5, 0xff, 0x0d, 0xd1, 0xde, 0x70, 0x74, 0x10, 0xaa, 0x1b, + 0xb2, 0x8d, 0xf0, 0x20, 0x02, 0x99, 0x6b, 0x1b, 0x0b, 0xd0, 0x47, 0x34, // RTCP index 0x80, 0x00, 0x00, 0x04, // HMAC |