/src/openssl36/providers/implementations/macs/gmac_prov.c

Source
/*
 * Copyright 2018-2026 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
 */
/* clang-format off */

/* clang-format on */

#include <stdlib.h>
#include <string.h>
#include <openssl/core_dispatch.h>
#include <openssl/core_names.h>
#include <openssl/params.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include <openssl/proverr.h>

#include "internal/cryptlib.h"
#include "prov/implementations.h"
#include "prov/provider_ctx.h"
#include "prov/provider_util.h"
#include "prov/providercommon.h"

/*
 * Forward declaration of everything implemented here.  This is not strictly
 * necessary for the compiler, but provides an assurance that the signatures
 * of the functions in the dispatch table are correct.
 */
static OSSL_FUNC_mac_newctx_fn gmac_new;
static OSSL_FUNC_mac_dupctx_fn gmac_dup;
static OSSL_FUNC_mac_freectx_fn gmac_free;
static OSSL_FUNC_mac_gettable_params_fn gmac_gettable_params;
static OSSL_FUNC_mac_get_params_fn gmac_get_params;
#ifdef FIPS_MODULE
static OSSL_FUNC_mac_gettable_ctx_params_fn gmac_gettable_ctx_params;
static OSSL_FUNC_mac_get_ctx_params_fn gmac_get_ctx_params;
#endif
static OSSL_FUNC_mac_settable_ctx_params_fn gmac_settable_ctx_params;
static OSSL_FUNC_mac_set_ctx_params_fn gmac_set_ctx_params;
static OSSL_FUNC_mac_init_fn gmac_init;
static OSSL_FUNC_mac_update_fn gmac_update;
static OSSL_FUNC_mac_final_fn gmac_final;

/* local GMAC pkey structure */

struct gmac_data_st {
    void *provctx;
    EVP_CIPHER_CTX *ctx; /* Cipher context */
    PROV_CIPHER cipher;
};

static void gmac_free(void *vmacctx)
{
    struct gmac_data_st *macctx = vmacctx;

    if (macctx != NULL) {
        EVP_CIPHER_CTX_free(macctx->ctx);
        ossl_prov_cipher_reset(&macctx->cipher);
        OPENSSL_free(macctx);
    }
}

static void *gmac_new(void *provctx)
{
    struct gmac_data_st *macctx;

    if (!ossl_prov_is_running())
        return NULL;

    if ((macctx = OPENSSL_zalloc(sizeof(*macctx))) == NULL
        || (macctx->ctx = EVP_CIPHER_CTX_new()) == NULL) {
        gmac_free(macctx);
        return NULL;
    }
    macctx->provctx = provctx;

    return macctx;
}

static void *gmac_dup(void *vsrc)
{
    struct gmac_data_st *src = vsrc;
    struct gmac_data_st *dst;

    if (!ossl_prov_is_running())
        return NULL;

    dst = gmac_new(src->provctx);
    if (dst == NULL)
        return NULL;

    if (!EVP_CIPHER_CTX_copy(dst->ctx, src->ctx)
        || !ossl_prov_cipher_copy(&dst->cipher, &src->cipher)) {
        gmac_free(dst);
        return NULL;
    }
    return dst;
}

static size_t gmac_size(void)
{
    return EVP_GCM_TLS_TAG_LEN;
}

static int gmac_setkey(struct gmac_data_st *macctx,
    const unsigned char *key, size_t keylen)
{
    EVP_CIPHER_CTX *ctx = macctx->ctx;

    if (keylen != (size_t)EVP_CIPHER_CTX_get_key_length(ctx)) {
        ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
        return 0;
    }
    if (!EVP_EncryptInit_ex(ctx, NULL, NULL, key, NULL))
        return 0;
    return 1;
}

static int gmac_init(void *vmacctx, const unsigned char *key,
    size_t keylen, const OSSL_PARAM params[])
{
    struct gmac_data_st *macctx = vmacctx;

    if (!ossl_prov_is_running() || !gmac_set_ctx_params(macctx, params))
        return 0;
    if (key != NULL)
        return gmac_setkey(macctx, key, keylen);
    return EVP_EncryptInit_ex(macctx->ctx, NULL, NULL, NULL, NULL);
}

static int gmac_update(void *vmacctx, const unsigned char *data,
    size_t datalen)
{
    struct gmac_data_st *macctx = vmacctx;
    EVP_CIPHER_CTX *ctx = macctx->ctx;
    int outlen;

    if (datalen == 0)
        return 1;

    while (datalen > INT_MAX) {
        if (!EVP_EncryptUpdate(ctx, NULL, &outlen, data, INT_MAX))
            return 0;
        data += INT_MAX;
        datalen -= INT_MAX;
    }
    return EVP_EncryptUpdate(ctx, NULL, &outlen, data, (int)datalen);
}

static int gmac_final(void *vmacctx, unsigned char *out, size_t *outl,
    size_t outsize)
{
    OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
    struct gmac_data_st *macctx = vmacctx;
    int hlen = 0;

    if (!ossl_prov_is_running())
        return 0;

    if (!EVP_EncryptFinal_ex(macctx->ctx, out, &hlen))
        return 0;

    hlen = (int)gmac_size();
    params[0] = OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG,
        out, (size_t)hlen);
    if (!EVP_CIPHER_CTX_get_params(macctx->ctx, params))
        return 0;

    *outl = hlen;
    return 1;
}

/* clang-format off */
/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef gmac_get_params_list
static ossl_unused const OSSL_PARAM gmac_get_params_list[] = {
    OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef gmac_get_params_st
struct gmac_get_params_st {
    OSSL_PARAM *size;
};
#endif

#ifndef gmac_get_params_decoder
static ossl_unused int gmac_get_params_decoder
    (const OSSL_PARAM *p, struct gmac_get_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            if (ossl_likely(strcmp("size", s + 0) == 0)) {
                /* OSSL_MAC_PARAM_SIZE */
                if (ossl_unlikely(r->size != NULL)) {
                    ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                   "param %s is repeated", s);
                    return 0;
                }
                r->size = (OSSL_PARAM *)p;
            }
    return 1;
}
#endif
/* End of machine generated */

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef gmac_get_ctx_params_list
static ossl_unused const OSSL_PARAM gmac_get_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
# if defined(FIPS_MODULE)
    OSSL_PARAM_int(OSSL_MAC_PARAM_FIPS_APPROVED_INDICATOR, NULL),
# endif
    OSSL_PARAM_END
};
#endif

#ifndef gmac_get_ctx_params_st
struct gmac_get_ctx_params_st {
    OSSL_PARAM *size;
};
#endif

#ifndef gmac_get_ctx_params_decoder
static ossl_unused int gmac_get_ctx_params_decoder
    (const OSSL_PARAM *p, struct gmac_get_ctx_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            switch(s[0]) {
            default:
                break;
            case 'f':
# if defined(FIPS_MODULE)
                if (ossl_likely(strcmp("ips-indicator", s + 1) == 0)) {
                    /* OSSL_MAC_PARAM_FIPS_APPROVED_INDICATOR */
                    if (!OSSL_PARAM_set_int((OSSL_PARAM *)p, 1))
                        return 0;
                }
# endif
                break;
            case 's':
                if (ossl_likely(strcmp("ize", s + 1) == 0)) {
                    /* OSSL_MAC_PARAM_SIZE */
                    if (ossl_unlikely(r->size != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->size = (OSSL_PARAM *)p;
                }
            }
    return 1;
}
#endif
/* End of machine generated */
/* clang-format on */

static const OSSL_PARAM *gmac_gettable_params(void *provctx)
{
    return gmac_get_params_list;
}

static int gmac_get_params(OSSL_PARAM params[])
{
    struct gmac_get_params_st p;

    if (!gmac_get_params_decoder(params, &p))
        return 0;

    if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, gmac_size()))
        return 0;

    return 1;
}

#ifdef FIPS_MODULE
static const OSSL_PARAM *gmac_gettable_ctx_params(ossl_unused void *ctx,
    ossl_unused void *provctx)
{
    return gmac_get_ctx_params_list;
}

static int gmac_get_ctx_params(ossl_unused void *ctx, OSSL_PARAM params[])
{
    struct gmac_get_ctx_params_st p;

    if (!gmac_get_ctx_params_decoder(params, &p))
        return 0;
    if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, gmac_size()))
        return 0;
    return 1;
}
#endif

/* clang-format off */
/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef gmac_set_ctx_params_list
static ossl_unused const OSSL_PARAM gmac_set_ctx_params_list[] = {
    OSSL_PARAM_utf8_string(OSSL_MAC_PARAM_CIPHER, NULL, 0),
    OSSL_PARAM_utf8_string(OSSL_MAC_PARAM_PROPERTIES, NULL, 0),
    OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
    OSSL_PARAM_octet_string(OSSL_MAC_PARAM_IV, NULL, 0),
    OSSL_PARAM_END
};
#endif

#ifndef gmac_set_ctx_params_st
struct gmac_set_ctx_params_st {
    OSSL_PARAM *cipher;
    OSSL_PARAM *engine;
    OSSL_PARAM *iv;
    OSSL_PARAM *key;
    OSSL_PARAM *propq;
};
#endif

#ifndef gmac_set_ctx_params_decoder
static ossl_unused int gmac_set_ctx_params_decoder
    (const OSSL_PARAM *p, struct gmac_set_ctx_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            switch(s[0]) {
            default:
                break;
            case 'c':
                if (ossl_likely(strcmp("ipher", s + 1) == 0)) {
                    /* OSSL_MAC_PARAM_CIPHER */
                    if (ossl_unlikely(r->cipher != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->cipher = (OSSL_PARAM *)p;
                }
                break;
            case 'e':
                if (ossl_likely(strcmp("ngine", s + 1) == 0)) {
                    /* OSSL_ALG_PARAM_ENGINE */
                    if (ossl_unlikely(r->engine != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->engine = (OSSL_PARAM *)p;
                }
                break;
            case 'i':
                if (ossl_likely(strcmp("v", s + 1) == 0)) {
                    /* OSSL_MAC_PARAM_IV */
                    if (ossl_unlikely(r->iv != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->iv = (OSSL_PARAM *)p;
                }
                break;
            case 'k':
                if (ossl_likely(strcmp("ey", s + 1) == 0)) {
                    /* OSSL_MAC_PARAM_KEY */
                    if (ossl_unlikely(r->key != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->key = (OSSL_PARAM *)p;
                }
                break;
            case 'p':
                if (ossl_likely(strcmp("roperties", s + 1) == 0)) {
                    /* OSSL_MAC_PARAM_PROPERTIES */
                    if (ossl_unlikely(r->propq != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->propq = (OSSL_PARAM *)p;
                }
            }
    return 1;
}
#endif
/* End of machine generated */
/* clang-format on */

static const OSSL_PARAM *gmac_settable_ctx_params(ossl_unused void *ctx,
    ossl_unused void *provctx)
{
    return gmac_set_ctx_params_list;
}

/*
 * ALL parameters should be set before init().
 */
static int gmac_set_ctx_params(void *vmacctx, const OSSL_PARAM params[])
{
    struct gmac_data_st *macctx = vmacctx;
    EVP_CIPHER_CTX *ctx;
    OSSL_LIB_CTX *provctx;
    struct gmac_set_ctx_params_st p;

    if (macctx == NULL || !gmac_set_ctx_params_decoder(params, &p))
        return 0;

    if ((ctx = macctx->ctx) == NULL)
        return 0;
    provctx = PROV_LIBCTX_OF(macctx->provctx);

    if (p.cipher != NULL) {
        if (!ossl_prov_cipher_load(&macctx->cipher, p.cipher, p.propq,
                p.engine, provctx))
            return 0;
        if (EVP_CIPHER_get_mode(ossl_prov_cipher_cipher(&macctx->cipher))
            != EVP_CIPH_GCM_MODE) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_MODE);
            return 0;
        }
        if (!EVP_EncryptInit_ex(ctx, ossl_prov_cipher_cipher(&macctx->cipher),
                ossl_prov_cipher_engine(&macctx->cipher), NULL,
                NULL))
            return 0;
    }

    if (p.key != NULL)
        if (p.key->data_type != OSSL_PARAM_OCTET_STRING
            || !gmac_setkey(macctx, p.key->data, p.key->data_size))
            return 0;

    if (p.iv != NULL) {
        if (p.iv->data_type != OSSL_PARAM_OCTET_STRING)
            return 0;

        if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN,
                (int)p.iv->data_size, NULL)
                <= 0
            || !EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, p.iv->data))
            return 0;
    }
    return 1;
}

const OSSL_DISPATCH ossl_gmac_functions[] = {
    { OSSL_FUNC_MAC_NEWCTX, (void (*)(void))gmac_new },
    { OSSL_FUNC_MAC_DUPCTX, (void (*)(void))gmac_dup },
    { OSSL_FUNC_MAC_FREECTX, (void (*)(void))gmac_free },
    { OSSL_FUNC_MAC_INIT, (void (*)(void))gmac_init },
    { OSSL_FUNC_MAC_UPDATE, (void (*)(void))gmac_update },
    { OSSL_FUNC_MAC_FINAL, (void (*)(void))gmac_final },
    { OSSL_FUNC_MAC_GETTABLE_PARAMS, (void (*)(void))gmac_gettable_params },
    { OSSL_FUNC_MAC_GET_PARAMS, (void (*)(void))gmac_get_params },
#ifdef FIPS_MODULE
    { OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS,
        (void (*)(void))gmac_gettable_ctx_params },
    { OSSL_FUNC_MAC_GET_CTX_PARAMS, (void (*)(void))gmac_get_ctx_params },
#endif
    { OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
        (void (*)(void))gmac_settable_ctx_params },
    { OSSL_FUNC_MAC_SET_CTX_PARAMS, (void (*)(void))gmac_set_ctx_params },
    OSSL_DISPATCH_END
};

Coverage Report

Created: 2026-10-28 06:28

Line	Count	Source
1		/*
2		* Copyright 2018-2026 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		/* clang-format off */
10
11		/* clang-format on */
12
13		#include <stdlib.h>
14		#include <string.h>
15		#include <openssl/core_dispatch.h>
16		#include <openssl/core_names.h>
17		#include <openssl/params.h>
18		#include <openssl/evp.h>
19		#include <openssl/err.h>
20		#include <openssl/proverr.h>
21
22		#include "internal/cryptlib.h"
23		#include "prov/implementations.h"
24		#include "prov/provider_ctx.h"
25		#include "prov/provider_util.h"
26		#include "prov/providercommon.h"
27
28		/*
29		* Forward declaration of everything implemented here. This is not strictly
30		* necessary for the compiler, but provides an assurance that the signatures
31		* of the functions in the dispatch table are correct.
32		*/
33		static OSSL_FUNC_mac_newctx_fn gmac_new;
34		static OSSL_FUNC_mac_dupctx_fn gmac_dup;
35		static OSSL_FUNC_mac_freectx_fn gmac_free;
36		static OSSL_FUNC_mac_gettable_params_fn gmac_gettable_params;
37		static OSSL_FUNC_mac_get_params_fn gmac_get_params;
38		#ifdef FIPS_MODULE
39		static OSSL_FUNC_mac_gettable_ctx_params_fn gmac_gettable_ctx_params;
40		static OSSL_FUNC_mac_get_ctx_params_fn gmac_get_ctx_params;
41		#endif
42		static OSSL_FUNC_mac_settable_ctx_params_fn gmac_settable_ctx_params;
43		static OSSL_FUNC_mac_set_ctx_params_fn gmac_set_ctx_params;
44		static OSSL_FUNC_mac_init_fn gmac_init;
45		static OSSL_FUNC_mac_update_fn gmac_update;
46		static OSSL_FUNC_mac_final_fn gmac_final;
47
48		/* local GMAC pkey structure */
49
50		struct gmac_data_st {
51		void *provctx;
52		EVP_CIPHER_CTX ctx; / Cipher context */
53		PROV_CIPHER cipher;
54		};
55
56		static void gmac_free(void *vmacctx)
57	272	{
58	272	struct gmac_data_st *macctx = vmacctx;
59
60	272	if (macctx != NULL) {
61	272	EVP_CIPHER_CTX_free(macctx->ctx);
62	272	ossl_prov_cipher_reset(&macctx->cipher);
63	272	OPENSSL_free(macctx);
64	272	}
65	272	}
66
67		static void gmac_new(void provctx)
68	272	{
69	272	struct gmac_data_st *macctx;
70
71	272	if (!ossl_prov_is_running())
72	0	return NULL;
73
74	272	if ((macctx = OPENSSL_zalloc(sizeof(*macctx))) == NULL
75	272	\|\| (macctx->ctx = EVP_CIPHER_CTX_new()) == NULL) {
76	0	gmac_free(macctx);
77	0	return NULL;
78	0	}
79	272	macctx->provctx = provctx;
80
81	272	return macctx;
82	272	}
83
84		static void gmac_dup(void vsrc)
85	0	{
86	0	struct gmac_data_st *src = vsrc;
87	0	struct gmac_data_st *dst;
88
89	0	if (!ossl_prov_is_running())
90	0	return NULL;
91
92	0	dst = gmac_new(src->provctx);
93	0	if (dst == NULL)
94	0	return NULL;
95
96	0	if (!EVP_CIPHER_CTX_copy(dst->ctx, src->ctx)
97	0	\|\| !ossl_prov_cipher_copy(&dst->cipher, &src->cipher)) {
98	0	gmac_free(dst);
99	0	return NULL;
100	0	}
101	0	return dst;
102	0	}
103
104		static size_t gmac_size(void)
105	0	{
106	0	return EVP_GCM_TLS_TAG_LEN;
107	0	}
108
109		static int gmac_setkey(struct gmac_data_st *macctx,
110		const unsigned char *key, size_t keylen)
111	127	{
112	127	EVP_CIPHER_CTX *ctx = macctx->ctx;
113
114	127	if (keylen != (size_t)EVP_CIPHER_CTX_get_key_length(ctx)) {
115	77	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
116	77	return 0;
117	77	}
118	50	if (!EVP_EncryptInit_ex(ctx, NULL, NULL, key, NULL))
119	0	return 0;
120	50	return 1;
121	50	}
122
123		static int gmac_init(void vmacctx, const unsigned char key,
124		size_t keylen, const OSSL_PARAM params[])
125	259	{
126	259	struct gmac_data_st *macctx = vmacctx;
127
128	259	if (!ossl_prov_is_running() \|\| !gmac_set_ctx_params(macctx, params))
129	228	return 0;
130	31	if (key != NULL)
131	31	return gmac_setkey(macctx, key, keylen);
132	0	return EVP_EncryptInit_ex(macctx->ctx, NULL, NULL, NULL, NULL);
133	31	}
134
135		static int gmac_update(void vmacctx, const unsigned char data,
136		size_t datalen)
137	0	{
138	0	struct gmac_data_st *macctx = vmacctx;
139	0	EVP_CIPHER_CTX *ctx = macctx->ctx;
140	0	int outlen;
141
142	0	if (datalen == 0)
143	0	return 1;
144
145	0	while (datalen > INT_MAX) {
146	0	if (!EVP_EncryptUpdate(ctx, NULL, &outlen, data, INT_MAX))
147	0	return 0;
148	0	data += INT_MAX;
149	0	datalen -= INT_MAX;
150	0	}
151	0	return EVP_EncryptUpdate(ctx, NULL, &outlen, data, (int)datalen);
152	0	}
153
154		static int gmac_final(void vmacctx, unsigned char out, size_t *outl,
155		size_t outsize)
156	0	{
157	0	OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
158	0	struct gmac_data_st *macctx = vmacctx;
159	0	int hlen = 0;
160
161	0	if (!ossl_prov_is_running())
162	0	return 0;
163
164	0	if (!EVP_EncryptFinal_ex(macctx->ctx, out, &hlen))
165	0	return 0;
166
167	0	hlen = (int)gmac_size();
168	0	params[0] = OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG,
169	0	out, (size_t)hlen);
170	0	if (!EVP_CIPHER_CTX_get_params(macctx->ctx, params))
171	0	return 0;
172
173	0	*outl = hlen;
174	0	return 1;
175	0	}
176
177		/* clang-format off */
178		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
179		#ifndef gmac_get_params_list
180		static ossl_unused const OSSL_PARAM gmac_get_params_list[] = {
181		OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
182		OSSL_PARAM_END
183		};
184		#endif
185
186		#ifndef gmac_get_params_st
187		struct gmac_get_params_st {
188		OSSL_PARAM *size;
189		};
190		#endif
191
192		#ifndef gmac_get_params_decoder
193		static ossl_unused int gmac_get_params_decoder
194		(const OSSL_PARAM p, struct gmac_get_params_st r)
195	0	{
196	0	const char *s;
197
198	0	memset(r, 0, sizeof(*r));
199	0	if (p != NULL)
200	0	for (; (s = p->key) != NULL; p++)
201	0	if (ossl_likely(strcmp("size", s + 0) == 0)) {
202		/* OSSL_MAC_PARAM_SIZE */
203	0	if (ossl_unlikely(r->size != NULL)) {
204	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
205	0	"param %s is repeated", s);
206	0	return 0;
207	0	}
208	0	r->size = (OSSL_PARAM *)p;
209	0	}
210	0	return 1;
211	0	}
212		#endif
213		/* End of machine generated */
214
215		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
216		#ifndef gmac_get_ctx_params_list
217		static ossl_unused const OSSL_PARAM gmac_get_ctx_params_list[] = {
218		OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
219		# if defined(FIPS_MODULE)
220		OSSL_PARAM_int(OSSL_MAC_PARAM_FIPS_APPROVED_INDICATOR, NULL),
221		# endif
222		OSSL_PARAM_END
223		};
224		#endif
225
226		#ifndef gmac_get_ctx_params_st
227		struct gmac_get_ctx_params_st {
228		OSSL_PARAM *size;
229		};
230		#endif
231
232		#ifndef gmac_get_ctx_params_decoder
233		static ossl_unused int gmac_get_ctx_params_decoder
234		(const OSSL_PARAM p, struct gmac_get_ctx_params_st r)
235	0	{
236	0	const char *s;
237	0
238	0	memset(r, 0, sizeof(*r));
239	0	if (p != NULL)
240	0	for (; (s = p->key) != NULL; p++)
241	0	switch(s[0]) {
242	0	default:
243	0	break;
244	0	case 'f':
245	0	# if defined(FIPS_MODULE)
246	0	if (ossl_likely(strcmp("ips-indicator", s + 1) == 0)) {
247	0	/* OSSL_MAC_PARAM_FIPS_APPROVED_INDICATOR */
248	0	if (!OSSL_PARAM_set_int((OSSL_PARAM *)p, 1))
249	0	return 0;
250	0	}
251	0	# endif
252	0	break;
253	0	case 's':
254	0	if (ossl_likely(strcmp("ize", s + 1) == 0)) {
255	0	/* OSSL_MAC_PARAM_SIZE */
256	0	if (ossl_unlikely(r->size != NULL)) {
257	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
258	0	"param %s is repeated", s);
259	0	return 0;
260	0	}
261	0	r->size = (OSSL_PARAM *)p;
262	0	}
263	0	}
264	0	return 1;
265	0	}
266		#endif
267		/* End of machine generated */
268		/* clang-format on */
269
270		static const OSSL_PARAM gmac_gettable_params(void provctx)
271	0	{
272	0	return gmac_get_params_list;
273	0	}
274
275		static int gmac_get_params(OSSL_PARAM params[])
276	0	{
277	0	struct gmac_get_params_st p;
278
279	0	if (!gmac_get_params_decoder(params, &p))
280	0	return 0;
281
282	0	if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, gmac_size()))
283	0	return 0;
284
285	0	return 1;
286	0	}
287
288		#ifdef FIPS_MODULE
289		static const OSSL_PARAM gmac_gettable_ctx_params(ossl_unused void ctx,
290		ossl_unused void *provctx)
291		{
292		return gmac_get_ctx_params_list;
293		}
294
295		static int gmac_get_ctx_params(ossl_unused void *ctx, OSSL_PARAM params[])
296		{
297		struct gmac_get_ctx_params_st p;
298
299		if (!gmac_get_ctx_params_decoder(params, &p))
300		return 0;
301		if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, gmac_size()))
302		return 0;
303		return 1;
304		}
305		#endif
306
307		/* clang-format off */
308		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
309		#ifndef gmac_set_ctx_params_list
310		static ossl_unused const OSSL_PARAM gmac_set_ctx_params_list[] = {
311		OSSL_PARAM_utf8_string(OSSL_MAC_PARAM_CIPHER, NULL, 0),
312		OSSL_PARAM_utf8_string(OSSL_MAC_PARAM_PROPERTIES, NULL, 0),
313		OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
314		OSSL_PARAM_octet_string(OSSL_MAC_PARAM_IV, NULL, 0),
315		OSSL_PARAM_END
316		};
317		#endif
318
319		#ifndef gmac_set_ctx_params_st
320		struct gmac_set_ctx_params_st {
321		OSSL_PARAM *cipher;
322		OSSL_PARAM *engine;
323		OSSL_PARAM *iv;
324		OSSL_PARAM *key;
325		OSSL_PARAM *propq;
326		};
327		#endif
328
329		#ifndef gmac_set_ctx_params_decoder
330		static ossl_unused int gmac_set_ctx_params_decoder
331		(const OSSL_PARAM p, struct gmac_set_ctx_params_st r)
332	39	{
333	39	const char *s;
334
335	39	memset(r, 0, sizeof(*r));
336	39	if (p != NULL)
337	157	for (; (s = p->key) != NULL; p++)
338	123	switch(s[0]) {
339	7	default:
340	7	break;
341	28	case 'c':
342	28	if (ossl_likely(strcmp("ipher", s + 1) == 0)) {
343		/* OSSL_MAC_PARAM_CIPHER */
344	28	if (ossl_unlikely(r->cipher != NULL)) {
345	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
346	0	"param %s is repeated", s);
347	0	return 0;
348	0	}
349	28	r->cipher = (OSSL_PARAM *)p;
350	28	}
351	28	break;
352	28	case 'e':
353	0	if (ossl_likely(strcmp("ngine", s + 1) == 0)) {
354		/* OSSL_ALG_PARAM_ENGINE */
355	0	if (ossl_unlikely(r->engine != NULL)) {
356	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
357	0	"param %s is repeated", s);
358	0	return 0;
359	0	}
360	0	r->engine = (OSSL_PARAM *)p;
361	0	}
362	0	break;
363	27	case 'i':
364	27	if (ossl_likely(strcmp("v", s + 1) == 0)) {
365		/* OSSL_MAC_PARAM_IV */
366	27	if (ossl_unlikely(r->iv != NULL)) {
367	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
368	0	"param %s is repeated", s);
369	0	return 0;
370	0	}
371	27	r->iv = (OSSL_PARAM *)p;
372	27	}
373	27	break;
374	27	case 'k':
375	27	if (ossl_likely(strcmp("ey", s + 1) == 0)) {
376		/* OSSL_MAC_PARAM_KEY */
377	27	if (ossl_unlikely(r->key != NULL)) {
378	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
379	0	"param %s is repeated", s);
380	0	return 0;
381	0	}
382	27	r->key = (OSSL_PARAM *)p;
383	27	}
384	27	break;
385	34	case 'p':
386	34	if (ossl_likely(strcmp("roperties", s + 1) == 0)) {
387		/* OSSL_MAC_PARAM_PROPERTIES */
388	34	if (ossl_unlikely(r->propq != NULL)) {
389	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
390	0	"param %s is repeated", s);
391	0	return 0;
392	0	}
393	34	r->propq = (OSSL_PARAM *)p;
394	34	}
395	123	}
396	39	return 1;
397	39	}
398		#endif
399		/* End of machine generated */
400		/* clang-format on */
401
402		static const OSSL_PARAM gmac_settable_ctx_params(ossl_unused void ctx,
403		ossl_unused void *provctx)
404	251	{
405	251	return gmac_set_ctx_params_list;
406	251	}
407
408		/*
409		* ALL parameters should be set before init().
410		*/
411		static int gmac_set_ctx_params(void *vmacctx, const OSSL_PARAM params[])
412	139	{
413	139	struct gmac_data_st *macctx = vmacctx;
414	139	EVP_CIPHER_CTX *ctx;
415	139	OSSL_LIB_CTX *provctx;
416	139	struct gmac_set_ctx_params_st p;
417
418	139	if (macctx == NULL \|\| !gmac_set_ctx_params_decoder(params, &p))
419	0	return 0;
420
421	139	if ((ctx = macctx->ctx) == NULL)
422	0	return 0;
423	139	provctx = PROV_LIBCTX_OF(macctx->provctx);
424
425	139	if (p.cipher != NULL) {
426	128	if (!ossl_prov_cipher_load(&macctx->cipher, p.cipher, p.propq,
427	128	p.engine, provctx))
428	91	return 0;
429	37	if (EVP_CIPHER_get_mode(ossl_prov_cipher_cipher(&macctx->cipher))
430	37	!= EVP_CIPH_GCM_MODE) {
431	6	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_MODE);
432	6	return 0;
433	6	}
434	31	if (!EVP_EncryptInit_ex(ctx, ossl_prov_cipher_cipher(&macctx->cipher),
435	31	ossl_prov_cipher_engine(&macctx->cipher), NULL,
436	31	NULL))
437	0	return 0;
438	31	}
439
440	42	if (p.key != NULL)
441	30	if (p.key->data_type != OSSL_PARAM_OCTET_STRING
442	30	\|\| !gmac_setkey(macctx, p.key->data, p.key->data_size))
443	10	return 0;
444
445	32	if (p.iv != NULL) {
446	20	if (p.iv->data_type != OSSL_PARAM_OCTET_STRING)
447	0	return 0;
448
449	20	if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN,
450	20	(int)p.iv->data_size, NULL)
451	20	<= 0
452	10	\|\| !EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, p.iv->data))
453	10	return 0;
454	20	}
455	22	return 1;
456	32	}
457
458		const OSSL_DISPATCH ossl_gmac_functions[] = {
459		{ OSSL_FUNC_MAC_NEWCTX, (void (*)(void))gmac_new },
460		{ OSSL_FUNC_MAC_DUPCTX, (void (*)(void))gmac_dup },
461		{ OSSL_FUNC_MAC_FREECTX, (void (*)(void))gmac_free },
462		{ OSSL_FUNC_MAC_INIT, (void (*)(void))gmac_init },
463		{ OSSL_FUNC_MAC_UPDATE, (void (*)(void))gmac_update },
464		{ OSSL_FUNC_MAC_FINAL, (void (*)(void))gmac_final },
465		{ OSSL_FUNC_MAC_GETTABLE_PARAMS, (void (*)(void))gmac_gettable_params },
466		{ OSSL_FUNC_MAC_GET_PARAMS, (void (*)(void))gmac_get_params },
467		#ifdef FIPS_MODULE
468		{ OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS,
469		(void (*)(void))gmac_gettable_ctx_params },
470		{ OSSL_FUNC_MAC_GET_CTX_PARAMS, (void (*)(void))gmac_get_ctx_params },
471		#endif
472		{ OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
473		(void (*)(void))gmac_settable_ctx_params },
474		{ OSSL_FUNC_MAC_SET_CTX_PARAMS, (void (*)(void))gmac_set_ctx_params },
475		OSSL_DISPATCH_END
476		};