/src/openssl/providers/implementations/macs/siphash_prov.c

Source (jump to first uncovered line)
/*
 * Copyright 2018-2023 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
 */


#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 "crypto/siphash.h"

#include "prov/implementations.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 siphash_new;
static OSSL_FUNC_mac_dupctx_fn siphash_dup;
static OSSL_FUNC_mac_freectx_fn siphash_free;
static OSSL_FUNC_mac_gettable_ctx_params_fn siphash_gettable_ctx_params;
static OSSL_FUNC_mac_get_ctx_params_fn siphash_get_ctx_params;
static OSSL_FUNC_mac_settable_ctx_params_fn siphash_settable_ctx_params;
static OSSL_FUNC_mac_set_ctx_params_fn siphash_set_params;
static OSSL_FUNC_mac_init_fn siphash_init;
static OSSL_FUNC_mac_update_fn siphash_update;
static OSSL_FUNC_mac_final_fn siphash_final;

struct siphash_data_st {
    void *provctx;
    SIPHASH siphash;             /* Siphash data */
    SIPHASH sipcopy;             /* Siphash data copy for reinitialization */
    unsigned int crounds, drounds;
};

static unsigned int crounds(struct siphash_data_st *ctx)
{
    return ctx->crounds != 0 ? ctx->crounds : SIPHASH_C_ROUNDS;
}

static unsigned int drounds(struct siphash_data_st *ctx)
{
    return ctx->drounds != 0 ? ctx->drounds : SIPHASH_D_ROUNDS;
}

static void *siphash_new(void *provctx)
{
    struct siphash_data_st *ctx;

    if (!ossl_prov_is_running())
        return NULL;
    ctx = OPENSSL_zalloc(sizeof(*ctx));
    if (ctx != NULL)
        ctx->provctx = provctx;
    return ctx;
}

static void siphash_free(void *vmacctx)
{
    OPENSSL_free(vmacctx);
}

static void *siphash_dup(void *vsrc)
{
    struct siphash_data_st *ssrc = vsrc;
    struct siphash_data_st *sdst;

    if (!ossl_prov_is_running())
        return NULL;
    sdst = OPENSSL_malloc(sizeof(*sdst));
    if (sdst == NULL)
        return NULL;

    *sdst = *ssrc;
    return sdst;
}

static size_t siphash_size(void *vmacctx)
{
    struct siphash_data_st *ctx = vmacctx;

    return SipHash_hash_size(&ctx->siphash);
}

static int siphash_setkey(struct siphash_data_st *ctx,
                          const unsigned char *key, size_t keylen)
{
    int ret;

    if (keylen != SIPHASH_KEY_SIZE)
        return 0;
    ret = SipHash_Init(&ctx->siphash, key, crounds(ctx), drounds(ctx));
    if (ret)
        ctx->sipcopy = ctx->siphash;
    return ret;
}

static int siphash_init(void *vmacctx, const unsigned char *key, size_t keylen,
                        const OSSL_PARAM params[])
{
    struct siphash_data_st *ctx = vmacctx;

    if (!ossl_prov_is_running() || !siphash_set_params(ctx, params))
        return 0;
    /*
     * Without a key, there is not much to do here,
     * The actual initialization happens through controls.
     */
    if (key == NULL) {
        ctx->siphash = ctx->sipcopy;
        return 1;
    }
    return siphash_setkey(ctx, key, keylen);
}

static int siphash_update(void *vmacctx, const unsigned char *data,
                          size_t datalen)
{
    struct siphash_data_st *ctx = vmacctx;

    if (datalen == 0)
        return 1;

    SipHash_Update(&ctx->siphash, data, datalen);
    return 1;
}

static int siphash_final(void *vmacctx, unsigned char *out, size_t *outl,
                         size_t outsize)
{
    struct siphash_data_st *ctx = vmacctx;
    size_t hlen = siphash_size(ctx);

    if (!ossl_prov_is_running() || outsize < hlen)
        return 0;

    *outl = hlen;
    return SipHash_Final(&ctx->siphash, out, hlen);
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef siphash_get_ctx_params_list
static const OSSL_PARAM siphash_get_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
    OSSL_PARAM_uint(OSSL_MAC_PARAM_C_ROUNDS, NULL),
    OSSL_PARAM_uint(OSSL_MAC_PARAM_D_ROUNDS, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef siphash_get_ctx_params_st
struct siphash_get_ctx_params_st {
    OSSL_PARAM *c;
    OSSL_PARAM *d;
    OSSL_PARAM *size;
};
#endif

#ifndef siphash_get_ctx_params_decoder
static int siphash_get_ctx_params_decoder
    (const OSSL_PARAM *p, struct siphash_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 'c':
                if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
                    /* MAC_PARAM_C_ROUNDS */
                    if (ossl_unlikely(r->c != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->c = (OSSL_PARAM *)p;
                }
                break;
            case 'd':
                if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
                    /* MAC_PARAM_D_ROUNDS */
                    if (ossl_unlikely(r->d != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->d = (OSSL_PARAM *)p;
                }
                break;
            case 's':
                if (ossl_likely(strcmp("ize", s + 1) == 0)) {
                    /* 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 */

static const OSSL_PARAM *siphash_gettable_ctx_params(ossl_unused void *ctx,
                                                     ossl_unused void *provctx)
{
    return siphash_get_ctx_params_list;
}

static int siphash_get_ctx_params(void *vmacctx, OSSL_PARAM params[])
{
    struct siphash_data_st *ctx = vmacctx;
    struct siphash_get_ctx_params_st p;

    if (ctx == NULL || !siphash_get_ctx_params_decoder(params, &p))
        return 0;

    if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, siphash_size(vmacctx)))
        return 0;
    if (p.c != NULL && !OSSL_PARAM_set_uint(p.c, crounds(ctx)))
        return 0;
    if (p.d != NULL && !OSSL_PARAM_set_uint(p.d, drounds(ctx)))
        return 0;
    return 1;
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef siphash_set_params_list
static const OSSL_PARAM siphash_set_params_list[] = {
    OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
    OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
    OSSL_PARAM_uint(OSSL_MAC_PARAM_C_ROUNDS, NULL),
    OSSL_PARAM_uint(OSSL_MAC_PARAM_D_ROUNDS, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef siphash_set_params_st
struct siphash_set_params_st {
    OSSL_PARAM *c;
    OSSL_PARAM *d;
    OSSL_PARAM *key;
    OSSL_PARAM *size;
};
#endif

#ifndef siphash_set_params_decoder
static int siphash_set_params_decoder
    (const OSSL_PARAM *p, struct siphash_set_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("-rounds", s + 1) == 0)) {
                    /* MAC_PARAM_C_ROUNDS */
                    if (ossl_unlikely(r->c != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->c = (OSSL_PARAM *)p;
                }
                break;
            case 'd':
                if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
                    /* MAC_PARAM_D_ROUNDS */
                    if (ossl_unlikely(r->d != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->d = (OSSL_PARAM *)p;
                }
                break;
            case 'k':
                if (ossl_likely(strcmp("ey", s + 1) == 0)) {
                    /* 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 's':
                if (ossl_likely(strcmp("ize", s + 1) == 0)) {
                    /* 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 */

static const OSSL_PARAM *siphash_settable_ctx_params(ossl_unused void *ctx,
                                                     void *provctx)
{
    return siphash_set_params_list;
}

static int siphash_set_params(void *vmacctx, const OSSL_PARAM *params)
{
    struct siphash_data_st *ctx = vmacctx;
    struct siphash_set_params_st p;
    size_t size;

    if (ctx == NULL || !siphash_set_params_decoder(params, &p))
        return 0;

    if (p.size != NULL) {
        if (!OSSL_PARAM_get_size_t(p.size, &size)
            || !SipHash_set_hash_size(&ctx->siphash, size)
            || !SipHash_set_hash_size(&ctx->sipcopy, size))
            return 0;
    }
    if (p.c != NULL && !OSSL_PARAM_get_uint(p.c, &ctx->crounds))
        return 0;
    if (p.d != NULL && !OSSL_PARAM_get_uint(p.d, &ctx->drounds))
        return 0;
    if (p.key != NULL)
        if (p.key->data_type != OSSL_PARAM_OCTET_STRING
            || !siphash_setkey(ctx, p.key->data, p.key->data_size))
            return 0;
    return 1;
}

const OSSL_DISPATCH ossl_siphash_functions[] = {
    { OSSL_FUNC_MAC_NEWCTX, (void (*)(void))siphash_new },
    { OSSL_FUNC_MAC_DUPCTX, (void (*)(void))siphash_dup },
    { OSSL_FUNC_MAC_FREECTX, (void (*)(void))siphash_free },
    { OSSL_FUNC_MAC_INIT, (void (*)(void))siphash_init },
    { OSSL_FUNC_MAC_UPDATE, (void (*)(void))siphash_update },
    { OSSL_FUNC_MAC_FINAL, (void (*)(void))siphash_final },
    { OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS,
      (void (*)(void))siphash_gettable_ctx_params },
    { OSSL_FUNC_MAC_GET_CTX_PARAMS, (void (*)(void))siphash_get_ctx_params },
    { OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
      (void (*)(void))siphash_settable_ctx_params },
    { OSSL_FUNC_MAC_SET_CTX_PARAMS, (void (*)(void))siphash_set_params },
    OSSL_DISPATCH_END
};

Coverage Report

Created: 2025-08-25 06:30

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2018-2023 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		#include <string.h>
12		#include <openssl/core_dispatch.h>
13		#include <openssl/core_names.h>
14		#include <openssl/params.h>
15		#include <openssl/evp.h>
16		#include <openssl/err.h>
17		#include <openssl/proverr.h>
18
19		#include "internal/cryptlib.h"
20		#include "crypto/siphash.h"
21
22		#include "prov/implementations.h"
23		#include "prov/providercommon.h"
24
25		/*
26		* Forward declaration of everything implemented here. This is not strictly
27		* necessary for the compiler, but provides an assurance that the signatures
28		* of the functions in the dispatch table are correct.
29		*/
30		static OSSL_FUNC_mac_newctx_fn siphash_new;
31		static OSSL_FUNC_mac_dupctx_fn siphash_dup;
32		static OSSL_FUNC_mac_freectx_fn siphash_free;
33		static OSSL_FUNC_mac_gettable_ctx_params_fn siphash_gettable_ctx_params;
34		static OSSL_FUNC_mac_get_ctx_params_fn siphash_get_ctx_params;
35		static OSSL_FUNC_mac_settable_ctx_params_fn siphash_settable_ctx_params;
36		static OSSL_FUNC_mac_set_ctx_params_fn siphash_set_params;
37		static OSSL_FUNC_mac_init_fn siphash_init;
38		static OSSL_FUNC_mac_update_fn siphash_update;
39		static OSSL_FUNC_mac_final_fn siphash_final;
40
41		struct siphash_data_st {
42		void *provctx;
43		SIPHASH siphash; /* Siphash data */
44		SIPHASH sipcopy; /* Siphash data copy for reinitialization */
45		unsigned int crounds, drounds;
46		};
47
48		static unsigned int crounds(struct siphash_data_st *ctx)
49	0	{
50	0	return ctx->crounds != 0 ? ctx->crounds : SIPHASH_C_ROUNDS;
51	0	}
52
53		static unsigned int drounds(struct siphash_data_st *ctx)
54	0	{
55	0	return ctx->drounds != 0 ? ctx->drounds : SIPHASH_D_ROUNDS;
56	0	}
57
58		static void siphash_new(void provctx)
59	0	{
60	0	struct siphash_data_st *ctx;
61
62	0	if (!ossl_prov_is_running())
63	0	return NULL;
64	0	ctx = OPENSSL_zalloc(sizeof(*ctx));
65	0	if (ctx != NULL)
66	0	ctx->provctx = provctx;
67	0	return ctx;
68	0	}
69
70		static void siphash_free(void *vmacctx)
71	0	{
72	0	OPENSSL_free(vmacctx);
73	0	}
74
75		static void siphash_dup(void vsrc)
76	0	{
77	0	struct siphash_data_st *ssrc = vsrc;
78	0	struct siphash_data_st *sdst;
79
80	0	if (!ossl_prov_is_running())
81	0	return NULL;
82	0	sdst = OPENSSL_malloc(sizeof(*sdst));
83	0	if (sdst == NULL)
84	0	return NULL;
85
86	0	sdst = ssrc;
87	0	return sdst;
88	0	}
89
90		static size_t siphash_size(void *vmacctx)
91	0	{
92	0	struct siphash_data_st *ctx = vmacctx;
93
94	0	return SipHash_hash_size(&ctx->siphash);
95	0	}
96
97		static int siphash_setkey(struct siphash_data_st *ctx,
98		const unsigned char *key, size_t keylen)
99	0	{
100	0	int ret;
101
102	0	if (keylen != SIPHASH_KEY_SIZE)
103	0	return 0;
104	0	ret = SipHash_Init(&ctx->siphash, key, crounds(ctx), drounds(ctx));
105	0	if (ret)
106	0	ctx->sipcopy = ctx->siphash;
107	0	return ret;
108	0	}
109
110		static int siphash_init(void vmacctx, const unsigned char key, size_t keylen,
111		const OSSL_PARAM params[])
112	0	{
113	0	struct siphash_data_st *ctx = vmacctx;
114
115	0	if (!ossl_prov_is_running() \|\| !siphash_set_params(ctx, params))
116	0	return 0;
117		/*
118		* Without a key, there is not much to do here,
119		* The actual initialization happens through controls.
120		*/
121	0	if (key == NULL) {
122	0	ctx->siphash = ctx->sipcopy;
123	0	return 1;
124	0	}
125	0	return siphash_setkey(ctx, key, keylen);
126	0	}
127
128		static int siphash_update(void vmacctx, const unsigned char data,
129		size_t datalen)
130	0	{
131	0	struct siphash_data_st *ctx = vmacctx;
132
133	0	if (datalen == 0)
134	0	return 1;
135
136	0	SipHash_Update(&ctx->siphash, data, datalen);
137	0	return 1;
138	0	}
139
140		static int siphash_final(void vmacctx, unsigned char out, size_t *outl,
141		size_t outsize)
142	0	{
143	0	struct siphash_data_st *ctx = vmacctx;
144	0	size_t hlen = siphash_size(ctx);
145
146	0	if (!ossl_prov_is_running() \|\| outsize < hlen)
147	0	return 0;
148
149	0	*outl = hlen;
150	0	return SipHash_Final(&ctx->siphash, out, hlen);
151	0	}
152
153		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
154		#ifndef siphash_get_ctx_params_list
155		static const OSSL_PARAM siphash_get_ctx_params_list[] = {
156		OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
157		OSSL_PARAM_uint(OSSL_MAC_PARAM_C_ROUNDS, NULL),
158		OSSL_PARAM_uint(OSSL_MAC_PARAM_D_ROUNDS, NULL),
159		OSSL_PARAM_END
160		};
161		#endif
162
163		#ifndef siphash_get_ctx_params_st
164		struct siphash_get_ctx_params_st {
165		OSSL_PARAM *c;
166		OSSL_PARAM *d;
167		OSSL_PARAM *size;
168		};
169		#endif
170
171		#ifndef siphash_get_ctx_params_decoder
172		static int siphash_get_ctx_params_decoder
173		(const OSSL_PARAM p, struct siphash_get_ctx_params_st r)
174	0	{
175	0	const char *s;
176
177	0	memset(r, 0, sizeof(*r));
178	0	if (p != NULL)
179	0	for (; (s = p->key) != NULL; p++)
180	0	switch(s[0]) {
181	0	default:
182	0	break;
183	0	case 'c':
184	0	if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
185		/* MAC_PARAM_C_ROUNDS */
186	0	if (ossl_unlikely(r->c != NULL)) {
187	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
188	0	"param %s is repeated", s);
189	0	return 0;
190	0	}
191	0	r->c = (OSSL_PARAM *)p;
192	0	}
193	0	break;
194	0	case 'd':
195	0	if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
196		/* MAC_PARAM_D_ROUNDS */
197	0	if (ossl_unlikely(r->d != NULL)) {
198	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
199	0	"param %s is repeated", s);
200	0	return 0;
201	0	}
202	0	r->d = (OSSL_PARAM *)p;
203	0	}
204	0	break;
205	0	case 's':
206	0	if (ossl_likely(strcmp("ize", s + 1) == 0)) {
207		/* MAC_PARAM_SIZE */
208	0	if (ossl_unlikely(r->size != NULL)) {
209	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
210	0	"param %s is repeated", s);
211	0	return 0;
212	0	}
213	0	r->size = (OSSL_PARAM *)p;
214	0	}
215	0	}
216	0	return 1;
217	0	}
218		#endif
219		/* End of machine generated */
220
221		static const OSSL_PARAM siphash_gettable_ctx_params(ossl_unused void ctx,
222		ossl_unused void *provctx)
223	0	{
224	0	return siphash_get_ctx_params_list;
225	0	}
226
227		static int siphash_get_ctx_params(void *vmacctx, OSSL_PARAM params[])
228	0	{
229	0	struct siphash_data_st *ctx = vmacctx;
230	0	struct siphash_get_ctx_params_st p;
231
232	0	if (ctx == NULL \|\| !siphash_get_ctx_params_decoder(params, &p))
233	0	return 0;
234
235	0	if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, siphash_size(vmacctx)))
236	0	return 0;
237	0	if (p.c != NULL && !OSSL_PARAM_set_uint(p.c, crounds(ctx)))
238	0	return 0;
239	0	if (p.d != NULL && !OSSL_PARAM_set_uint(p.d, drounds(ctx)))
240	0	return 0;
241	0	return 1;
242	0	}
243
244		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
245		#ifndef siphash_set_params_list
246		static const OSSL_PARAM siphash_set_params_list[] = {
247		OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
248		OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
249		OSSL_PARAM_uint(OSSL_MAC_PARAM_C_ROUNDS, NULL),
250		OSSL_PARAM_uint(OSSL_MAC_PARAM_D_ROUNDS, NULL),
251		OSSL_PARAM_END
252		};
253		#endif
254
255		#ifndef siphash_set_params_st
256		struct siphash_set_params_st {
257		OSSL_PARAM *c;
258		OSSL_PARAM *d;
259		OSSL_PARAM *key;
260		OSSL_PARAM *size;
261		};
262		#endif
263
264		#ifndef siphash_set_params_decoder
265		static int siphash_set_params_decoder
266		(const OSSL_PARAM p, struct siphash_set_params_st r)
267	0	{
268	0	const char *s;
269
270	0	memset(r, 0, sizeof(*r));
271	0	if (p != NULL)
272	0	for (; (s = p->key) != NULL; p++)
273	0	switch(s[0]) {
274	0	default:
275	0	break;
276	0	case 'c':
277	0	if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
278		/* MAC_PARAM_C_ROUNDS */
279	0	if (ossl_unlikely(r->c != NULL)) {
280	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
281	0	"param %s is repeated", s);
282	0	return 0;
283	0	}
284	0	r->c = (OSSL_PARAM *)p;
285	0	}
286	0	break;
287	0	case 'd':
288	0	if (ossl_likely(strcmp("-rounds", s + 1) == 0)) {
289		/* MAC_PARAM_D_ROUNDS */
290	0	if (ossl_unlikely(r->d != NULL)) {
291	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
292	0	"param %s is repeated", s);
293	0	return 0;
294	0	}
295	0	r->d = (OSSL_PARAM *)p;
296	0	}
297	0	break;
298	0	case 'k':
299	0	if (ossl_likely(strcmp("ey", s + 1) == 0)) {
300		/* MAC_PARAM_KEY */
301	0	if (ossl_unlikely(r->key != NULL)) {
302	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
303	0	"param %s is repeated", s);
304	0	return 0;
305	0	}
306	0	r->key = (OSSL_PARAM *)p;
307	0	}
308	0	break;
309	0	case 's':
310	0	if (ossl_likely(strcmp("ize", s + 1) == 0)) {
311		/* MAC_PARAM_SIZE */
312	0	if (ossl_unlikely(r->size != NULL)) {
313	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
314	0	"param %s is repeated", s);
315	0	return 0;
316	0	}
317	0	r->size = (OSSL_PARAM *)p;
318	0	}
319	0	}
320	0	return 1;
321	0	}
322		#endif
323		/* End of machine generated */
324
325		static const OSSL_PARAM siphash_settable_ctx_params(ossl_unused void ctx,
326		void *provctx)
327	0	{
328	0	return siphash_set_params_list;
329	0	}
330
331		static int siphash_set_params(void vmacctx, const OSSL_PARAM params)
332	0	{
333	0	struct siphash_data_st *ctx = vmacctx;
334	0	struct siphash_set_params_st p;
335	0	size_t size;
336
337	0	if (ctx == NULL \|\| !siphash_set_params_decoder(params, &p))
338	0	return 0;
339
340	0	if (p.size != NULL) {
341	0	if (!OSSL_PARAM_get_size_t(p.size, &size)
342	0	\|\| !SipHash_set_hash_size(&ctx->siphash, size)
343	0	\|\| !SipHash_set_hash_size(&ctx->sipcopy, size))
344	0	return 0;
345	0	}
346	0	if (p.c != NULL && !OSSL_PARAM_get_uint(p.c, &ctx->crounds))
347	0	return 0;
348	0	if (p.d != NULL && !OSSL_PARAM_get_uint(p.d, &ctx->drounds))
349	0	return 0;
350	0	if (p.key != NULL)
351	0	if (p.key->data_type != OSSL_PARAM_OCTET_STRING
352	0	\|\| !siphash_setkey(ctx, p.key->data, p.key->data_size))
353	0	return 0;
354	0	return 1;
355	0	}
356
357		const OSSL_DISPATCH ossl_siphash_functions[] = {
358		{ OSSL_FUNC_MAC_NEWCTX, (void (*)(void))siphash_new },
359		{ OSSL_FUNC_MAC_DUPCTX, (void (*)(void))siphash_dup },
360		{ OSSL_FUNC_MAC_FREECTX, (void (*)(void))siphash_free },
361		{ OSSL_FUNC_MAC_INIT, (void (*)(void))siphash_init },
362		{ OSSL_FUNC_MAC_UPDATE, (void (*)(void))siphash_update },
363		{ OSSL_FUNC_MAC_FINAL, (void (*)(void))siphash_final },
364		{ OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS,
365		(void (*)(void))siphash_gettable_ctx_params },
366		{ OSSL_FUNC_MAC_GET_CTX_PARAMS, (void (*)(void))siphash_get_ctx_params },
367		{ OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
368		(void (*)(void))siphash_settable_ctx_params },
369		{ OSSL_FUNC_MAC_SET_CTX_PARAMS, (void (*)(void))siphash_set_params },
370		OSSL_DISPATCH_END
371		};