/src/openssl30/ssl/d1_srtp.c

Source
/*
 * 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,
    },
    { 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)
{
    return ssl_ctx_make_profiles(profiles, &s->srtp_profiles);
}

STACK_OF(SRTP_PROTECTION_PROFILE) *SSL_get_srtp_profiles(SSL *s)
{
    if (s != NULL) {
        if (s->srtp_profiles != NULL) {
            return s->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)
{
    return s->srtp_profile;
}
#endif

Line	Count	Source
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		{ 0 }
40		};
41
42		static int find_profile_by_name(char *profile_name,
43		SRTP_PROTECTION_PROFILE **pptr, size_t len)
44	0	{
45	0	SRTP_PROTECTION_PROFILE *p;
46
47	0	p = srtp_known_profiles;
48	0	while (p->name) {
49	0	if ((len == strlen(p->name))
50	0	&& strncmp(p->name, profile_name, len) == 0) {
51	0	*pptr = p;
52	0	return 0;
53	0	}
54
55	0	p++;
56	0	}
57
58	0	return 1;
59	0	}
60
61		static int ssl_ctx_make_profiles(const char *profiles_string,
62		STACK_OF(SRTP_PROTECTION_PROFILE) **out)
63	0	{
64	0	STACK_OF(SRTP_PROTECTION_PROFILE) *profiles;
65
66	0	char *col;
67	0	char ptr = (char )profiles_string;
68	0	SRTP_PROTECTION_PROFILE *p;
69
70	0	if ((profiles = sk_SRTP_PROTECTION_PROFILE_new_null()) == NULL) {
71	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
72	0	return 1;
73	0	}
74
75	0	do {
76	0	col = strchr(ptr, ':');
77
78	0	if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr) : strlen(ptr))) {
79	0	if (sk_SRTP_PROTECTION_PROFILE_find(profiles, p) >= 0) {
80	0	ERR_raise(ERR_LIB_SSL, SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
81	0	goto err;
82	0	}
83
84	0	if (!sk_SRTP_PROTECTION_PROFILE_push(profiles, p)) {
85	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
86	0	goto err;
87	0	}
88	0	} else {
89	0	ERR_raise(ERR_LIB_SSL, SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
90	0	goto err;
91	0	}
92
93	0	if (col)
94	0	ptr = col + 1;
95	0	} while (col);
96
97	0	sk_SRTP_PROTECTION_PROFILE_free(*out);
98
99	0	*out = profiles;
100
101	0	return 0;
102	0	err:
103	0	sk_SRTP_PROTECTION_PROFILE_free(profiles);
104	0	return 1;
105	0	}
106
107		int SSL_CTX_set_tlsext_use_srtp(SSL_CTX ctx, const char profiles)
108	0	{
109	0	return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles);
110	0	}
111
112		int SSL_set_tlsext_use_srtp(SSL s, const char profiles)
113	0	{
114	0	return ssl_ctx_make_profiles(profiles, &s->srtp_profiles);
115	0	}
116
117		STACK_OF(SRTP_PROTECTION_PROFILE) SSL_get_srtp_profiles(SSL s)
118	6.76k	{
119	6.76k	if (s != NULL) {
120	6.76k	if (s->srtp_profiles != NULL) {
121	0	return s->srtp_profiles;
122	6.76k	} else if ((s->ctx != NULL) && (s->ctx->srtp_profiles != NULL)) {
123	0	return s->ctx->srtp_profiles;
124	0	}
125	6.76k	}
126
127	6.76k	return NULL;
128	6.76k	}
129
130		SRTP_PROTECTION_PROFILE SSL_get_selected_srtp_profile(SSL s)
131	0	{
132	0	return s->srtp_profile;
133	0	}
134		#endif

Coverage Report

Created: 2025-12-31 06:58