From b7676495c8c1ba0d94b42b3fbcb91d318c586f63 Mon Sep 17 00:00:00 2001
From: kworm83 <21957311+kworm83@users.noreply.github.com>
Date: Tue, 18 Jan 2022 09:46:38 -0600
Subject: [PATCH] Add alg parameter to Identity header

---
 modules/stir_shaken/stir_shaken.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/stir_shaken/stir_shaken.c b/modules/stir_shaken/stir_shaken.c
index aa5f7ce8fd1..4a2526ec34a 100644
--- a/modules/stir_shaken/stir_shaken.c
+++ b/modules/stir_shaken/stir_shaken.c
@@ -784,7 +784,7 @@ static int add_identity_hf(struct sip_msg *msg, EVP_PKEY *pkey,
 
 	hdr_buf.len = IDENTITY_HDR_LEN + unsigned_buf.len + 1/*'.'*/ +
 		calc_base64_encode_len(RAW_SIG_LEN) + 1/*';'*/ + HDR_INFO_PARAM_LEN +
-		2/*'<','>'*/ + cr_url->len + 1/*';'*/ + HDR_PPT_PARAM_LEN + CRLF_LEN;
+		2/*'<','>'*/ + cr_url->len + 1/*';'*/ + HDR_ALG_PARAM_LEN + 1/*';'*/ + HDR_PPT_PARAM_LEN + CRLF_LEN;
 	hdr_buf.s = pkg_malloc(hdr_buf.len);
 	if (!hdr_buf.s) {
 		LM_ERR("oom!\n");
@@ -814,6 +814,9 @@ static int add_identity_hf(struct sip_msg *msg, EVP_PKEY *pkey,
 	hdr_buf.len += cr_url->len;
 	hdr_buf.s[hdr_buf.len++] = '>';
 	hdr_buf.s[hdr_buf.len++] = ';';
+	memcpy(hdr_buf.s + hdr_buf.len, HDR_ALG_PARAM_S, HDR_ALG_PARAM_LEN);
++       hdr_buf.len += HDR_ALG_PARAM_LEN;
++       hdr_buf.s[hdr_buf.len++] = ';';
 	memcpy(hdr_buf.s + hdr_buf.len, HDR_PPT_PARAM_S, HDR_PPT_PARAM_LEN);
 	hdr_buf.len += HDR_PPT_PARAM_LEN;
 	memcpy(hdr_buf.s + hdr_buf.len, CRLF, CRLF_LEN);