/src/openssl/ssl/d1_srtp.c

Source (jump to first uncovered line)
/*
 * Copyright 2011-2025 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * DTLS code by Eric Rescorla <ekr@rtfm.com>
 *
 * Copyright (C) 2006, Network Resonance, Inc. Copyright (C) 2011, RTFM, Inc.
 */

#include <stdio.h>
#include <openssl/objects.h>
#include "ssl_local.h"
#include "internal/ssl_unwrap.h"

#ifndef OPENSSL_NO_SRTP

static const SRTP_PROTECTION_PROFILE srtp_known_profiles[] = {
    {
     "SRTP_AES128_CM_SHA1_80",
     SRTP_AES128_CM_SHA1_80,
     },
    {
     "SRTP_AES128_CM_SHA1_32",
     SRTP_AES128_CM_SHA1_32,
     },
    {
     "SRTP_AEAD_AES_128_GCM",
     SRTP_AEAD_AES_128_GCM,
     },
    {
     "SRTP_AEAD_AES_256_GCM",
     SRTP_AEAD_AES_256_GCM,
     },
    {
     "SRTP_DOUBLE_AEAD_AES_128_GCM_AEAD_AES_128_GCM",
     SRTP_DOUBLE_AEAD_AES_128_GCM_AEAD_AES_128_GCM,
     },
    {
     "SRTP_DOUBLE_AEAD_AES_256_GCM_AEAD_AES_256_GCM",
     SRTP_DOUBLE_AEAD_AES_256_GCM_AEAD_AES_256_GCM,
     },
    {
     "SRTP_ARIA_128_CTR_HMAC_SHA1_80",
     SRTP_ARIA_128_CTR_HMAC_SHA1_80,
     },
    {
     "SRTP_ARIA_128_CTR_HMAC_SHA1_32",
     SRTP_ARIA_128_CTR_HMAC_SHA1_32,
     },
    {
     "SRTP_ARIA_256_CTR_HMAC_SHA1_80",
     SRTP_ARIA_256_CTR_HMAC_SHA1_80,
     },
    {
     "SRTP_ARIA_256_CTR_HMAC_SHA1_32",
     SRTP_ARIA_256_CTR_HMAC_SHA1_32,
     },
    {
     "SRTP_AEAD_ARIA_128_GCM",
     SRTP_AEAD_ARIA_128_GCM,
     },
    {
     "SRTP_AEAD_ARIA_256_GCM",
     SRTP_AEAD_ARIA_256_GCM,
     },
    {0}
};

static int find_profile_by_name(char *profile_name,
                                const SRTP_PROTECTION_PROFILE **pptr, size_t len)
{
    const SRTP_PROTECTION_PROFILE *p;

    p = srtp_known_profiles;
    while (p->name) {
        if ((len == strlen(p->name))
            && strncmp(p->name, profile_name, len) == 0) {
            *pptr = p;
            return 0;
        }

        p++;
    }

    return 1;
}

static int ssl_ctx_make_profiles(const char *profiles_string,
                                 STACK_OF(SRTP_PROTECTION_PROFILE) **out)
{
    STACK_OF(SRTP_PROTECTION_PROFILE) *profiles;

    char *col;
    char *ptr = (char *)profiles_string;
    const SRTP_PROTECTION_PROFILE *p;

    if ((profiles = sk_SRTP_PROTECTION_PROFILE_new_null()) == NULL) {
        ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
        return 1;
    }

    do {
        col = strchr(ptr, ':');

        if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr)
                                               : strlen(ptr))) {
            if (sk_SRTP_PROTECTION_PROFILE_find(profiles,
                                                (SRTP_PROTECTION_PROFILE *)p) >= 0) {
                ERR_raise(ERR_LIB_SSL, SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
                goto err;
            }

            if (!sk_SRTP_PROTECTION_PROFILE_push(profiles,
                                                 (SRTP_PROTECTION_PROFILE *)p)) {
                ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
                goto err;
            }
        } else {
            ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
            goto err;
        }

        if (col)
            ptr = col + 1;
    } while (col);

    sk_SRTP_PROTECTION_PROFILE_free(*out);

    *out = profiles;

    return 0;
 err:
    sk_SRTP_PROTECTION_PROFILE_free(profiles);
    return 1;
}

int SSL_CTX_set_tlsext_use_srtp(SSL_CTX *ctx, const char *profiles)
{
    if (IS_QUIC_METHOD(ctx->method))
        return 1;

    return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles);
}

int SSL_set_tlsext_use_srtp(SSL *s, const char *profiles)
{
    SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);

    if (sc == NULL)
        return 1;

    return ssl_ctx_make_profiles(profiles, &sc->srtp_profiles);
}

STACK_OF(SRTP_PROTECTION_PROFILE) *SSL_get_srtp_profiles(SSL *s)
{
    SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);

    if (sc != NULL) {
        if (sc->srtp_profiles != NULL) {
            return sc->srtp_profiles;
        } else if ((s->ctx != NULL) && (s->ctx->srtp_profiles != NULL)) {
            return s->ctx->srtp_profiles;
        }
    }

    return NULL;
}

SRTP_PROTECTION_PROFILE *SSL_get_selected_srtp_profile(SSL *s)
{
    SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);

    if (sc == NULL)
        return 0;

    return sc->srtp_profile;
}
#endif

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2011-2025 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		/*
11		* DTLS code by Eric Rescorla <ekr@rtfm.com>
12		*
13		* Copyright (C) 2006, Network Resonance, Inc. Copyright (C) 2011, RTFM, Inc.
14		*/
15
16		#include <stdio.h>
17		#include <openssl/objects.h>
18		#include "ssl_local.h"
19		#include "internal/ssl_unwrap.h"
20
21		#ifndef OPENSSL_NO_SRTP
22
23		static const SRTP_PROTECTION_PROFILE srtp_known_profiles[] = {
24		{
25		"SRTP_AES128_CM_SHA1_80",
26		SRTP_AES128_CM_SHA1_80,
27		},
28		{
29		"SRTP_AES128_CM_SHA1_32",
30		SRTP_AES128_CM_SHA1_32,
31		},
32		{
33		"SRTP_AEAD_AES_128_GCM",
34		SRTP_AEAD_AES_128_GCM,
35		},
36		{
37		"SRTP_AEAD_AES_256_GCM",
38		SRTP_AEAD_AES_256_GCM,
39		},
40		{
41		"SRTP_DOUBLE_AEAD_AES_128_GCM_AEAD_AES_128_GCM",
42		SRTP_DOUBLE_AEAD_AES_128_GCM_AEAD_AES_128_GCM,
43		},
44		{
45		"SRTP_DOUBLE_AEAD_AES_256_GCM_AEAD_AES_256_GCM",
46		SRTP_DOUBLE_AEAD_AES_256_GCM_AEAD_AES_256_GCM,
47		},
48		{
49		"SRTP_ARIA_128_CTR_HMAC_SHA1_80",
50		SRTP_ARIA_128_CTR_HMAC_SHA1_80,
51		},
52		{
53		"SRTP_ARIA_128_CTR_HMAC_SHA1_32",
54		SRTP_ARIA_128_CTR_HMAC_SHA1_32,
55		},
56		{
57		"SRTP_ARIA_256_CTR_HMAC_SHA1_80",
58		SRTP_ARIA_256_CTR_HMAC_SHA1_80,
59		},
60		{
61		"SRTP_ARIA_256_CTR_HMAC_SHA1_32",
62		SRTP_ARIA_256_CTR_HMAC_SHA1_32,
63		},
64		{
65		"SRTP_AEAD_ARIA_128_GCM",
66		SRTP_AEAD_ARIA_128_GCM,
67		},
68		{
69		"SRTP_AEAD_ARIA_256_GCM",
70		SRTP_AEAD_ARIA_256_GCM,
71		},
72		{0}
73		};
74
75		static int find_profile_by_name(char *profile_name,
76		const SRTP_PROTECTION_PROFILE **pptr, size_t len)
77	0	{
78	0	const SRTP_PROTECTION_PROFILE *p;
79
80	0	p = srtp_known_profiles;
81	0	while (p->name) {
82	0	if ((len == strlen(p->name))
83	0	&& strncmp(p->name, profile_name, len) == 0) {
84	0	*pptr = p;
85	0	return 0;
86	0	}
87
88	0	p++;
89	0	}
90
91	0	return 1;
92	0	}
93
94		static int ssl_ctx_make_profiles(const char *profiles_string,
95		STACK_OF(SRTP_PROTECTION_PROFILE) **out)
96	0	{
97	0	STACK_OF(SRTP_PROTECTION_PROFILE) *profiles;
98
99	0	char *col;
100	0	char ptr = (char )profiles_string;
101	0	const SRTP_PROTECTION_PROFILE *p;
102
103	0	if ((profiles = sk_SRTP_PROTECTION_PROFILE_new_null()) == NULL) {
104	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
105	0	return 1;
106	0	}
107
108	0	do {
109	0	col = strchr(ptr, ':');
110
111	0	if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr)
112	0	: strlen(ptr))) {
113	0	if (sk_SRTP_PROTECTION_PROFILE_find(profiles,
114	0	(SRTP_PROTECTION_PROFILE *)p) >= 0) {
115	0	ERR_raise(ERR_LIB_SSL, SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
116	0	goto err;
117	0	}
118
119	0	if (!sk_SRTP_PROTECTION_PROFILE_push(profiles,
120	0	(SRTP_PROTECTION_PROFILE *)p)) {
121	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
122	0	goto err;
123	0	}
124	0	} else {
125	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
126	0	goto err;
127	0	}
128
129	0	if (col)
130	0	ptr = col + 1;
131	0	} while (col);
132
133	0	sk_SRTP_PROTECTION_PROFILE_free(*out);
134
135	0	*out = profiles;
136
137	0	return 0;
138	0	err:
139	0	sk_SRTP_PROTECTION_PROFILE_free(profiles);
140	0	return 1;
141	0	}
142
143		int SSL_CTX_set_tlsext_use_srtp(SSL_CTX ctx, const char profiles)
144	0	{
145	0	if (IS_QUIC_METHOD(ctx->method))
146	0	return 1;
147
148	0	return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles);
149	0	}
150
151		int SSL_set_tlsext_use_srtp(SSL s, const char profiles)
152	0	{
153	0	SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
154
155	0	if (sc == NULL)
156	0	return 1;
157
158	0	return ssl_ctx_make_profiles(profiles, &sc->srtp_profiles);
159	0	}
160
161		STACK_OF(SRTP_PROTECTION_PROFILE) SSL_get_srtp_profiles(SSL s)
162	0	{
163	0	SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
164
165	0	if (sc != NULL) {
166	0	if (sc->srtp_profiles != NULL) {
167	0	return sc->srtp_profiles;
168	0	} else if ((s->ctx != NULL) && (s->ctx->srtp_profiles != NULL)) {
169	0	return s->ctx->srtp_profiles;
170	0	}
171	0	}
172
173	0	return NULL;
174	0	}
175
176		SRTP_PROTECTION_PROFILE SSL_get_selected_srtp_profile(SSL s)
177	0	{
178	0	SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
179
180	0	if (sc == NULL)
181	0	return 0;
182
183	0	return sc->srtp_profile;
184	0	}
185		#endif

Coverage Report

Created: 2025-06-13 06:55