/src/openssl/ssl/d1_srtp.c

Source (jump to first uncovered line)
/*
 * Copyright 2011-2020 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"

#ifndef OPENSSL_NO_SRTP

static 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,
                                SRTP_PROTECTION_PROFILE **pptr, size_t len)
{
    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;
    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, p) >= 0) {
                ERR_raise(ERR_LIB_SSL, SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
                goto err;
            }

            if (!sk_SRTP_PROTECTION_PROFILE_push(profiles, 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)
{
    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 0;

    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 2011-2020 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
20		#ifndef OPENSSL_NO_SRTP
21
22		static SRTP_PROTECTION_PROFILE srtp_known_profiles[] = {
23		{
24		"SRTP_AES128_CM_SHA1_80",
25		SRTP_AES128_CM_SHA1_80,
26		},
27		{
28		"SRTP_AES128_CM_SHA1_32",
29		SRTP_AES128_CM_SHA1_32,
30		},
31		{
32		"SRTP_AEAD_AES_128_GCM",
33		SRTP_AEAD_AES_128_GCM,
34		},
35		{
36		"SRTP_AEAD_AES_256_GCM",
37		SRTP_AEAD_AES_256_GCM,
38		},
39		{
40		"SRTP_DOUBLE_AEAD_AES_128_GCM_AEAD_AES_128_GCM",
41		SRTP_DOUBLE_AEAD_AES_128_GCM_AEAD_AES_128_GCM,
42		},
43		{
44		"SRTP_DOUBLE_AEAD_AES_256_GCM_AEAD_AES_256_GCM",
45		SRTP_DOUBLE_AEAD_AES_256_GCM_AEAD_AES_256_GCM,
46		},
47		{
48		"SRTP_ARIA_128_CTR_HMAC_SHA1_80",
49		SRTP_ARIA_128_CTR_HMAC_SHA1_80,
50		},
51		{
52		"SRTP_ARIA_128_CTR_HMAC_SHA1_32",
53		SRTP_ARIA_128_CTR_HMAC_SHA1_32,
54		},
55		{
56		"SRTP_ARIA_256_CTR_HMAC_SHA1_80",
57		SRTP_ARIA_256_CTR_HMAC_SHA1_80,
58		},
59		{
60		"SRTP_ARIA_256_CTR_HMAC_SHA1_32",
61		SRTP_ARIA_256_CTR_HMAC_SHA1_32,
62		},
63		{
64		"SRTP_AEAD_ARIA_128_GCM",
65		SRTP_AEAD_ARIA_128_GCM,
66		},
67		{
68		"SRTP_AEAD_ARIA_256_GCM",
69		SRTP_AEAD_ARIA_256_GCM,
70		},
71		{0}
72		};
73
74		static int find_profile_by_name(char *profile_name,
75		SRTP_PROTECTION_PROFILE **pptr, size_t len)
76	0	{
77	0	SRTP_PROTECTION_PROFILE *p;
78
79	0	p = srtp_known_profiles;
80	0	while (p->name) {
81	0	if ((len == strlen(p->name))
82	0	&& strncmp(p->name, profile_name, len) == 0) {
83	0	*pptr = p;
84	0	return 0;
85	0	}
86
87	0	p++;
88	0	}
89
90	0	return 1;
91	0	}
92
93		static int ssl_ctx_make_profiles(const char *profiles_string,
94		STACK_OF(SRTP_PROTECTION_PROFILE) **out)
95	0	{
96	0	STACK_OF(SRTP_PROTECTION_PROFILE) *profiles;
97
98	0	char *col;
99	0	char ptr = (char )profiles_string;
100	0	SRTP_PROTECTION_PROFILE *p;
101
102	0	if ((profiles = sk_SRTP_PROTECTION_PROFILE_new_null()) == NULL) {
103	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
104	0	return 1;
105	0	}
106
107	0	do {
108	0	col = strchr(ptr, ':');
109
110	0	if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr)
111	0	: strlen(ptr))) {
112	0	if (sk_SRTP_PROTECTION_PROFILE_find(profiles, p) >= 0) {
113	0	ERR_raise(ERR_LIB_SSL, SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
114	0	goto err;
115	0	}
116
117	0	if (!sk_SRTP_PROTECTION_PROFILE_push(profiles, p)) {
118	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
119	0	goto err;
120	0	}
121	0	} else {
122	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
123	0	goto err;
124	0	}
125
126	0	if (col)
127	0	ptr = col + 1;
128	0	} while (col);
129
130	0	sk_SRTP_PROTECTION_PROFILE_free(*out);
131
132	0	*out = profiles;
133
134	0	return 0;
135	0	err:
136	0	sk_SRTP_PROTECTION_PROFILE_free(profiles);
137	0	return 1;
138	0	}
139
140		int SSL_CTX_set_tlsext_use_srtp(SSL_CTX ctx, const char profiles)
141	0	{
142	0	return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles);
143	0	}
144
145		int SSL_set_tlsext_use_srtp(SSL s, const char profiles)
146	0	{
147	0	SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
148
149	0	if (sc == NULL)
150	0	return 0;
151
152	0	return ssl_ctx_make_profiles(profiles, &sc->srtp_profiles);
153	0	}
154
155		STACK_OF(SRTP_PROTECTION_PROFILE) SSL_get_srtp_profiles(SSL s)
156	0	{
157	0	SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
158
159	0	if (sc != NULL) {
160	0	if (sc->srtp_profiles != NULL) {
161	0	return sc->srtp_profiles;
162	0	} else if ((s->ctx != NULL) && (s->ctx->srtp_profiles != NULL)) {
163	0	return s->ctx->srtp_profiles;
164	0	}
165	0	}
166
167	0	return NULL;
168	0	}
169
170		SRTP_PROTECTION_PROFILE SSL_get_selected_srtp_profile(SSL s)
171	0	{
172	0	SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
173
174	0	if (sc == NULL)
175	0	return 0;
176
177	0	return sc->srtp_profile;
178	0	}
179		#endif

Coverage Report

Created: 2023-04-12 06:22