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authorMarvin W <git@larma.de>2021-03-23 20:04:28 +0100
committerMarvin W <git@larma.de>2021-03-23 20:04:28 +0100
commit4b230808b9566322fae8d1ef0d1a5cb3e8027d3b (patch)
tree0243fa93129ece9cfc1f92430ccc6659ee1259aa /plugins/crypto-vala/src/srtp.vapi
parent97ab7de7ab4f958eb7d273e524151007d44ea1d7 (diff)
downloaddino-4b230808b9566322fae8d1ef0d1a5cb3e8027d3b.tar.gz
dino-4b230808b9566322fae8d1ef0d1a5cb3e8027d3b.zip
Move SRTP implementation into crypto library for reuse
Diffstat (limited to 'plugins/crypto-vala/src/srtp.vapi')
-rw-r--r--plugins/crypto-vala/src/srtp.vapi107
1 files changed, 107 insertions, 0 deletions
diff --git a/plugins/crypto-vala/src/srtp.vapi b/plugins/crypto-vala/src/srtp.vapi
new file mode 100644
index 00000000..0fe825c3
--- /dev/null
+++ b/plugins/crypto-vala/src/srtp.vapi
@@ -0,0 +1,107 @@
+[CCode (cheader_filename="srtp.h")]
+namespace Crypto.Srtp {
+
+[Compact]
+[CCode (cname = "srtp_session_t", free_function = "srtp_destroy")]
+public class Session {
+ [CCode (cname = "srtp_create")]
+ public Session(Encryption encr, Authentication auth, uint tag_len, Prf prf, Flags flags);
+ [CCode (cname = "srtp_setkey")]
+ public int setkey(uint8[] key, uint8[] salt);
+ [CCode (cname = "srtp_setkeystring")]
+ public int setkeystring(string key, string salt);
+ [CCode (cname = "srtp_setrcc_rate")]
+ public void setrcc_rate(uint16 rate);
+
+ [CCode (cname = "srtp_send")]
+ private int rtp_send([CCode (array_length = false)] uint8[] buf, ref size_t len, size_t maxsize);
+ [CCode (cname = "srtcp_send")]
+ private int rtcp_send([CCode (array_length = false)] uint8[] buf, ref size_t len, size_t maxsize);
+ [CCode (cname = "srtp_recv")]
+ private int rtp_recv([CCode (array_length = false)] uint8[] buf, ref size_t len);
+ [CCode (cname = "srtcp_recv")]
+ private int rtcp_recv([CCode (array_length = false)] uint8[] buf, ref size_t len);
+
+ public uint8[] encrypt_rtp(uint8[] input, uint tag_len = 10) throws GLib.Error {
+ uint8[] buf = new uint8[input.length + tag_len];
+ GLib.Memory.copy(buf, input, input.length);
+ size_t buf_use = input.length;
+ int res = rtp_send(buf, ref buf_use, buf.length);
+ if (res != 0) {
+ throw new GLib.Error(-1, res, "RTP encrypt failed");
+ }
+ uint8[] ret = new uint8[buf_use];
+ GLib.Memory.copy(ret, buf, buf_use);
+ return ret;
+ }
+
+ public uint8[] encrypt_rtcp(uint8[] input, uint tag_len = 10) throws GLib.Error {
+ uint8[] buf = new uint8[input.length + tag_len + 4];
+ GLib.Memory.copy(buf, input, input.length);
+ size_t buf_use = input.length;
+ int res = rtcp_send(buf, ref buf_use, buf.length);
+ if (res != 0) {
+ throw new GLib.Error(-1, res, "RTCP encrypt failed");
+ }
+ uint8[] ret = new uint8[buf_use];
+ GLib.Memory.copy(ret, buf, buf_use);
+ return ret;
+ }
+
+ public uint8[] decrypt_rtp(uint8[] input) throws GLib.Error {
+ uint8[] buf = new uint8[input.length];
+ GLib.Memory.copy(buf, input, input.length);
+ size_t buf_use = input.length;
+ int res = rtp_recv(buf, ref buf_use);
+ if (res != 0) {
+ throw new GLib.Error(-1, res, "RTP decrypt failed");
+ }
+ uint8[] ret = new uint8[buf_use];
+ GLib.Memory.copy(ret, buf, buf_use);
+ return ret;
+ }
+
+ public uint8[] decrypt_rtcp(uint8[] input) throws GLib.Error {
+ uint8[] buf = new uint8[input.length];
+ GLib.Memory.copy(buf, input, input.length);
+ size_t buf_use = input.length;
+ int res = rtcp_recv(buf, ref buf_use);
+ if (res != 0) {
+ throw new GLib.Error(-1, res, "RTCP decrypt failed");
+ }
+ uint8[] ret = new uint8[buf_use];
+ GLib.Memory.copy(ret, buf, buf_use);
+ return ret;
+ }
+}
+
+[Flags]
+[CCode (cname = "unsigned", cprefix = "", has_type_id = false)]
+public enum Flags {
+ SRTP_UNENCRYPTED,
+ SRTCP_UNENCRYPTED,
+ SRTP_UNAUTHENTICATED,
+ SRTP_RCC_MODE1,
+ SRTP_RCC_MODE2,
+ SRTP_RCC_MODE3
+}
+
+[CCode (cname = "int", cprefix = "SRTP_ENCR_", has_type_id = false)]
+public enum Encryption {
+ NULL,
+ AES_CM,
+ AES_F8
+}
+
+[CCode (cname = "int", cprefix = "SRTP_AUTH_", has_type_id = false)]
+public enum Authentication {
+ NULL,
+ HMAC_SHA1
+}
+
+[CCode (cname = "int", cprefix = "SRTP_PRF_", has_type_id = false)]
+public enum Prf {
+ AES_CM
+}
+
+} \ No newline at end of file