/src/mbedtls/library/debug.c

Source (jump to first uncovered line)
/*
 *  Debugging routines
 *
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
 *  not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#include "common.h"

#if defined(MBEDTLS_DEBUG_C)

#include "mbedtls/platform.h"

#include "mbedtls/debug.h"
#include "mbedtls/error.h"

#include <stdarg.h>
#include <stdio.h>
#include <string.h>

#define DEBUG_BUF_SIZE      512

static int debug_threshold = 0;

void mbedtls_debug_set_threshold(int threshold)
{
    debug_threshold = threshold;
}

/*
 * All calls to f_dbg must be made via this function
 */
static inline void debug_send_line(const mbedtls_ssl_context *ssl, int level,
                                   const char *file, int line,
                                   const char *str)
{
    /*
     * If in a threaded environment, we need a thread identifier.
     * Since there is no portable way to get one, use the address of the ssl
     * context instead, as it shouldn't be shared between threads.
     */
#if defined(MBEDTLS_THREADING_C)
    char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */
    mbedtls_snprintf(idstr, sizeof(idstr), "%p: %s", (void *) ssl, str);
    ssl->conf->f_dbg(ssl->conf->p_dbg, level, file, line, idstr);
#else
    ssl->conf->f_dbg(ssl->conf->p_dbg, level, file, line, str);
#endif
}

MBEDTLS_PRINTF_ATTRIBUTE(5, 6)
void mbedtls_debug_print_msg(const mbedtls_ssl_context *ssl, int level,
                             const char *file, int line,
                             const char *format, ...)
{
    va_list argp;
    char str[DEBUG_BUF_SIZE];
    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;

    if (NULL == ssl              ||
        NULL == ssl->conf        ||
        NULL == ssl->conf->f_dbg ||
        level > debug_threshold) {
        return;
    }

    va_start(argp, format);
    ret = mbedtls_vsnprintf(str, DEBUG_BUF_SIZE, format, argp);
    va_end(argp);

    if (ret >= 0 && ret < DEBUG_BUF_SIZE - 1) {
        str[ret]     = '\n';
        str[ret + 1] = '\0';
    }

    debug_send_line(ssl, level, file, line, str);
}

void mbedtls_debug_print_ret(const mbedtls_ssl_context *ssl, int level,
                             const char *file, int line,
                             const char *text, int ret)
{
    char str[DEBUG_BUF_SIZE];

    if (NULL == ssl              ||
        NULL == ssl->conf        ||
        NULL == ssl->conf->f_dbg ||
        level > debug_threshold) {
        return;
    }

    /*
     * With non-blocking I/O and examples that just retry immediately,
     * the logs would be quickly flooded with WANT_READ, so ignore that.
     * Don't ignore WANT_WRITE however, since it is usually rare.
     */
    if (ret == MBEDTLS_ERR_SSL_WANT_READ) {
        return;
    }

    mbedtls_snprintf(str, sizeof(str), "%s() returned %d (-0x%04x)\n",
                     text, ret, (unsigned int) -ret);

    debug_send_line(ssl, level, file, line, str);
}

void mbedtls_debug_print_buf(const mbedtls_ssl_context *ssl, int level,
                             const char *file, int line, const char *text,
                             const unsigned char *buf, size_t len)
{
    char str[DEBUG_BUF_SIZE];
    char txt[17];
    size_t i, idx = 0;

    if (NULL == ssl              ||
        NULL == ssl->conf        ||
        NULL == ssl->conf->f_dbg ||
        level > debug_threshold) {
        return;
    }

    mbedtls_snprintf(str + idx, sizeof(str) - idx, "dumping '%s' (%u bytes)\n",
                     text, (unsigned int) len);

    debug_send_line(ssl, level, file, line, str);

    idx = 0;
    memset(txt, 0, sizeof(txt));
    for (i = 0; i < len; i++) {
        if (i >= 4096) {
            break;
        }

        if (i % 16 == 0) {
            if (i > 0) {
                mbedtls_snprintf(str + idx, sizeof(str) - idx, "  %s\n", txt);
                debug_send_line(ssl, level, file, line, str);

                idx = 0;
                memset(txt, 0, sizeof(txt));
            }

            idx += mbedtls_snprintf(str + idx, sizeof(str) - idx, "%04x: ",
                                    (unsigned int) i);

        }

        idx += mbedtls_snprintf(str + idx, sizeof(str) - idx, " %02x",
                                (unsigned int) buf[i]);
        txt[i % 16] = (buf[i] > 31 && buf[i] < 127) ? buf[i] : '.';
    }

    if (len > 0) {
        for (/* i = i */; i % 16 != 0; i++) {
            idx += mbedtls_snprintf(str + idx, sizeof(str) - idx, "   ");
        }

        mbedtls_snprintf(str + idx, sizeof(str) - idx, "  %s\n", txt);
        debug_send_line(ssl, level, file, line, str);
    }
}

#if defined(MBEDTLS_ECP_C)
void mbedtls_debug_print_ecp(const mbedtls_ssl_context *ssl, int level,
                             const char *file, int line,
                             const char *text, const mbedtls_ecp_point *X)
{
    char str[DEBUG_BUF_SIZE];

    if (NULL == ssl              ||
        NULL == ssl->conf        ||
        NULL == ssl->conf->f_dbg ||
        level > debug_threshold) {
        return;
    }

    mbedtls_snprintf(str, sizeof(str), "%s(X)", text);
    mbedtls_debug_print_mpi(ssl, level, file, line, str, &X->X);

    mbedtls_snprintf(str, sizeof(str), "%s(Y)", text);
    mbedtls_debug_print_mpi(ssl, level, file, line, str, &X->Y);
}
#endif /* MBEDTLS_ECP_C */

#if defined(MBEDTLS_BIGNUM_C)
void mbedtls_debug_print_mpi(const mbedtls_ssl_context *ssl, int level,
                             const char *file, int line,
                             const char *text, const mbedtls_mpi *X)
{
    char str[DEBUG_BUF_SIZE];
    size_t bitlen;
    size_t idx = 0;

    if (NULL == ssl              ||
        NULL == ssl->conf        ||
        NULL == ssl->conf->f_dbg ||
        NULL == X                ||
        level > debug_threshold) {
        return;
    }

    bitlen = mbedtls_mpi_bitlen(X);

    mbedtls_snprintf(str, sizeof(str), "value of '%s' (%u bits) is:\n",
                     text, (unsigned) bitlen);
    debug_send_line(ssl, level, file, line, str);

    if (bitlen == 0) {
        str[0] = ' '; str[1] = '0'; str[2] = '0';
        idx = 3;
    } else {
        int n;
        for (n = (int) ((bitlen - 1) / 8); n >= 0; n--) {
            size_t limb_offset = n / sizeof(mbedtls_mpi_uint);
            size_t offset_in_limb = n % sizeof(mbedtls_mpi_uint);
            unsigned char octet =
                (X->p[limb_offset] >> (offset_in_limb * 8)) & 0xff;
            mbedtls_snprintf(str + idx, sizeof(str) - idx, " %02x", octet);
            idx += 3;
            /* Wrap lines after 16 octets that each take 3 columns */
            if (idx >= 3 * 16) {
                mbedtls_snprintf(str + idx, sizeof(str) - idx, "\n");
                debug_send_line(ssl, level, file, line, str);
                idx = 0;
            }
        }
    }

    if (idx != 0) {
        mbedtls_snprintf(str + idx, sizeof(str) - idx, "\n");
        debug_send_line(ssl, level, file, line, str);
    }
}
#endif /* MBEDTLS_BIGNUM_C */

#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_INFO)
static void debug_print_pk(const mbedtls_ssl_context *ssl, int level,
                           const char *file, int line,
                           const char *text, const mbedtls_pk_context *pk)
{
    size_t i;
    mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS];
    char name[16];

    memset(items, 0, sizeof(items));

    if (mbedtls_pk_debug(pk, items) != 0) {
        debug_send_line(ssl, level, file, line,
                        "invalid PK context\n");
        return;
    }

    for (i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++) {
        if (items[i].type == MBEDTLS_PK_DEBUG_NONE) {
            return;
        }

        mbedtls_snprintf(name, sizeof(name), "%s%s", text, items[i].name);
        name[sizeof(name) - 1] = '\0';

        if (items[i].type == MBEDTLS_PK_DEBUG_MPI) {
            mbedtls_debug_print_mpi(ssl, level, file, line, name, items[i].value);
        } else
#if defined(MBEDTLS_ECP_C)
        if (items[i].type == MBEDTLS_PK_DEBUG_ECP) {
            mbedtls_debug_print_ecp(ssl, level, file, line, name, items[i].value);
        } else
#endif
        { debug_send_line(ssl, level, file, line,
                          "should not happen\n"); }
    }
}

static void debug_print_line_by_line(const mbedtls_ssl_context *ssl, int level,
                                     const char *file, int line, const char *text)
{
    char str[DEBUG_BUF_SIZE];
    const char *start, *cur;

    start = text;
    for (cur = text; *cur != '\0'; cur++) {
        if (*cur == '\n') {
            size_t len = cur - start + 1;
            if (len > DEBUG_BUF_SIZE - 1) {
                len = DEBUG_BUF_SIZE - 1;
            }

            memcpy(str, start, len);
            str[len] = '\0';

            debug_send_line(ssl, level, file, line, str);

            start = cur + 1;
        }
    }
}

void mbedtls_debug_print_crt(const mbedtls_ssl_context *ssl, int level,
                             const char *file, int line,
                             const char *text, const mbedtls_x509_crt *crt)
{
    char str[DEBUG_BUF_SIZE];
    int i = 0;

    if (NULL == ssl              ||
        NULL == ssl->conf        ||
        NULL == ssl->conf->f_dbg ||
        NULL == crt              ||
        level > debug_threshold) {
        return;
    }

    while (crt != NULL) {
        char buf[1024];

        mbedtls_snprintf(str, sizeof(str), "%s #%d:\n", text, ++i);
        debug_send_line(ssl, level, file, line, str);

        mbedtls_x509_crt_info(buf, sizeof(buf) - 1, "", crt);
        debug_print_line_by_line(ssl, level, file, line, buf);

        debug_print_pk(ssl, level, file, line, "crt->", &crt->pk);

        crt = crt->next;
    }
}
#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_X509_REMOVE_INFO */

#if defined(MBEDTLS_ECDH_C)
static void mbedtls_debug_printf_ecdh_internal(const mbedtls_ssl_context *ssl,
                                               int level, const char *file,
                                               int line,
                                               const mbedtls_ecdh_context *ecdh,
                                               mbedtls_debug_ecdh_attr attr)
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
    const mbedtls_ecdh_context *ctx = ecdh;
#else
    const mbedtls_ecdh_context_mbed *ctx = &ecdh->ctx.mbed_ecdh;
#endif

    switch (attr) {
        case MBEDTLS_DEBUG_ECDH_Q:
            mbedtls_debug_print_ecp(ssl, level, file, line, "ECDH: Q",
                                    &ctx->Q);
            break;
        case MBEDTLS_DEBUG_ECDH_QP:
            mbedtls_debug_print_ecp(ssl, level, file, line, "ECDH: Qp",
                                    &ctx->Qp);
            break;
        case MBEDTLS_DEBUG_ECDH_Z:
            mbedtls_debug_print_mpi(ssl, level, file, line, "ECDH: z",
                                    &ctx->z);
            break;
        default:
            break;
    }
}

void mbedtls_debug_printf_ecdh(const mbedtls_ssl_context *ssl, int level,
                               const char *file, int line,
                               const mbedtls_ecdh_context *ecdh,
                               mbedtls_debug_ecdh_attr attr)
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
    mbedtls_debug_printf_ecdh_internal(ssl, level, file, line, ecdh, attr);
#else
    switch (ecdh->var) {
        default:
            mbedtls_debug_printf_ecdh_internal(ssl, level, file, line, ecdh,
                                               attr);
    }
#endif
}
#endif /* MBEDTLS_ECDH_C */

#endif /* MBEDTLS_DEBUG_C */

Coverage Report

Created: 2024-08-27 12:19

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Debugging routines
3		*
4		* Copyright The Mbed TLS Contributors
5		* SPDX-License-Identifier: Apache-2.0
6		*
7		* Licensed under the Apache License, Version 2.0 (the "License"); you may
8		* not use this file except in compliance with the License.
9		* You may obtain a copy of the License at
10		*
11		* http://www.apache.org/licenses/LICENSE-2.0
12		*
13		* Unless required by applicable law or agreed to in writing, software
14		* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
15		* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16		* See the License for the specific language governing permissions and
17		* limitations under the License.
18		*/
19
20		#include "common.h"
21
22		#if defined(MBEDTLS_DEBUG_C)
23
24		#include "mbedtls/platform.h"
25
26		#include "mbedtls/debug.h"
27		#include "mbedtls/error.h"
28
29		#include <stdarg.h>
30		#include <stdio.h>
31		#include <string.h>
32
33	0	#define DEBUG_BUF_SIZE 512
34
35		static int debug_threshold = 0;
36
37		void mbedtls_debug_set_threshold(int threshold)
38	0	{
39	0	debug_threshold = threshold;
40	0	}
41
42		/*
43		* All calls to f_dbg must be made via this function
44		*/
45		static inline void debug_send_line(const mbedtls_ssl_context *ssl, int level,
46		const char *file, int line,
47		const char *str)
48	0	{
49		/*
50		* If in a threaded environment, we need a thread identifier.
51		* Since there is no portable way to get one, use the address of the ssl
52		* context instead, as it shouldn't be shared between threads.
53		*/
54		#if defined(MBEDTLS_THREADING_C)
55		char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */
56		mbedtls_snprintf(idstr, sizeof(idstr), "%p: %s", (void *) ssl, str);
57		ssl->conf->f_dbg(ssl->conf->p_dbg, level, file, line, idstr);
58		#else
59	0	ssl->conf->f_dbg(ssl->conf->p_dbg, level, file, line, str);
60	0	#endif
61	0	}
62
63		MBEDTLS_PRINTF_ATTRIBUTE(5, 6)
64		void mbedtls_debug_print_msg(const mbedtls_ssl_context *ssl, int level,
65		const char *file, int line,
66		const char *format, ...)
67	292M	{
68	292M	va_list argp;
69	292M	char str[DEBUG_BUF_SIZE];
70	292M	int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
71
72	292M	if (NULL == ssl \|\|
73	292M	NULL == ssl->conf \|\|
74	292M	NULL == ssl->conf->f_dbg \|\|
75	292M	level > debug_threshold) {
76	292M	return;
77	292M	}
78
79	0	va_start(argp, format);
80	0	ret = mbedtls_vsnprintf(str, DEBUG_BUF_SIZE, format, argp);
81	0	va_end(argp);
82
83	0	if (ret >= 0 && ret < DEBUG_BUF_SIZE - 1) {
84	0	str[ret] = '\n';
85	0	str[ret + 1] = '\0';
86	0	}
87
88	0	debug_send_line(ssl, level, file, line, str);
89	0	}
90
91		void mbedtls_debug_print_ret(const mbedtls_ssl_context *ssl, int level,
92		const char *file, int line,
93		const char *text, int ret)
94	8.85M	{
95	8.85M	char str[DEBUG_BUF_SIZE];
96
97	8.85M	if (NULL == ssl \|\|
98	8.85M	NULL == ssl->conf \|\|
99	8.85M	NULL == ssl->conf->f_dbg \|\|
100	8.85M	level > debug_threshold) {
101	8.85M	return;
102	8.85M	}
103
104		/*
105		* With non-blocking I/O and examples that just retry immediately,
106		* the logs would be quickly flooded with WANT_READ, so ignore that.
107		* Don't ignore WANT_WRITE however, since it is usually rare.
108		*/
109	0	if (ret == MBEDTLS_ERR_SSL_WANT_READ) {
110	0	return;
111	0	}
112
113	0	mbedtls_snprintf(str, sizeof(str), "%s() returned %d (-0x%04x)\n",
114	0	text, ret, (unsigned int) -ret);
115
116	0	debug_send_line(ssl, level, file, line, str);
117	0	}
118
119		void mbedtls_debug_print_buf(const mbedtls_ssl_context *ssl, int level,
120		const char file, int line, const char text,
121		const unsigned char *buf, size_t len)
122	10.6M	{
123	10.6M	char str[DEBUG_BUF_SIZE];
124	10.6M	char txt[17];
125	10.6M	size_t i, idx = 0;
126
127	10.6M	if (NULL == ssl \|\|
128	10.6M	NULL == ssl->conf \|\|
129	10.6M	NULL == ssl->conf->f_dbg \|\|
130	10.6M	level > debug_threshold) {
131	10.6M	return;
132	10.6M	}
133
134	0	mbedtls_snprintf(str + idx, sizeof(str) - idx, "dumping '%s' (%u bytes)\n",
135	0	text, (unsigned int) len);
136
137	0	debug_send_line(ssl, level, file, line, str);
138
139	0	idx = 0;
140	0	memset(txt, 0, sizeof(txt));
141	0	for (i = 0; i < len; i++) {
142	0	if (i >= 4096) {
143	0	break;
144	0	}
145
146	0	if (i % 16 == 0) {
147	0	if (i > 0) {
148	0	mbedtls_snprintf(str + idx, sizeof(str) - idx, " %s\n", txt);
149	0	debug_send_line(ssl, level, file, line, str);
150
151	0	idx = 0;
152	0	memset(txt, 0, sizeof(txt));
153	0	}
154
155	0	idx += mbedtls_snprintf(str + idx, sizeof(str) - idx, "%04x: ",
156	0	(unsigned int) i);
157
158	0	}
159
160	0	idx += mbedtls_snprintf(str + idx, sizeof(str) - idx, " %02x",
161	0	(unsigned int) buf[i]);
162	0	txt[i % 16] = (buf[i] > 31 && buf[i] < 127) ? buf[i] : '.';
163	0	}
164
165	0	if (len > 0) {
166	0	for (/* i = i */; i % 16 != 0; i++) {
167	0	idx += mbedtls_snprintf(str + idx, sizeof(str) - idx, " ");
168	0	}
169
170	0	mbedtls_snprintf(str + idx, sizeof(str) - idx, " %s\n", txt);
171	0	debug_send_line(ssl, level, file, line, str);
172	0	}
173	0	}
174
175		#if defined(MBEDTLS_ECP_C)
176		void mbedtls_debug_print_ecp(const mbedtls_ssl_context *ssl, int level,
177		const char *file, int line,
178		const char text, const mbedtls_ecp_point X)
179	2.54k	{
180	2.54k	char str[DEBUG_BUF_SIZE];
181
182	2.54k	if (NULL == ssl \|\|
183	2.54k	NULL == ssl->conf \|\|
184	2.54k	NULL == ssl->conf->f_dbg \|\|
185	2.54k	level > debug_threshold) {
186	2.54k	return;
187	2.54k	}
188
189	0	mbedtls_snprintf(str, sizeof(str), "%s(X)", text);
190	0	mbedtls_debug_print_mpi(ssl, level, file, line, str, &X->X);
191
192	0	mbedtls_snprintf(str, sizeof(str), "%s(Y)", text);
193	0	mbedtls_debug_print_mpi(ssl, level, file, line, str, &X->Y);
194	0	}
195		#endif /* MBEDTLS_ECP_C */
196
197		#if defined(MBEDTLS_BIGNUM_C)
198		void mbedtls_debug_print_mpi(const mbedtls_ssl_context *ssl, int level,
199		const char *file, int line,
200		const char text, const mbedtls_mpi X)
201	111	{
202	111	char str[DEBUG_BUF_SIZE];
203	111	size_t bitlen;
204	111	size_t idx = 0;
205
206	111	if (NULL == ssl \|\|
207	111	NULL == ssl->conf \|\|
208	111	NULL == ssl->conf->f_dbg \|\|
209	111	NULL == X \|\|
210	111	level > debug_threshold) {
211	111	return;
212	111	}
213
214	0	bitlen = mbedtls_mpi_bitlen(X);
215
216	0	mbedtls_snprintf(str, sizeof(str), "value of '%s' (%u bits) is:\n",
217	0	text, (unsigned) bitlen);
218	0	debug_send_line(ssl, level, file, line, str);
219
220	0	if (bitlen == 0) {
221	0	str[0] = ' '; str[1] = '0'; str[2] = '0';
222	0	idx = 3;
223	0	} else {
224	0	int n;
225	0	for (n = (int) ((bitlen - 1) / 8); n >= 0; n--) {
226	0	size_t limb_offset = n / sizeof(mbedtls_mpi_uint);
227	0	size_t offset_in_limb = n % sizeof(mbedtls_mpi_uint);
228	0	unsigned char octet =
229	0	(X->p[limb_offset] >> (offset_in_limb * 8)) & 0xff;
230	0	mbedtls_snprintf(str + idx, sizeof(str) - idx, " %02x", octet);
231	0	idx += 3;
232		/* Wrap lines after 16 octets that each take 3 columns */
233	0	if (idx >= 3 * 16) {
234	0	mbedtls_snprintf(str + idx, sizeof(str) - idx, "\n");
235	0	debug_send_line(ssl, level, file, line, str);
236	0	idx = 0;
237	0	}
238	0	}
239	0	}
240
241	0	if (idx != 0) {
242	0	mbedtls_snprintf(str + idx, sizeof(str) - idx, "\n");
243	0	debug_send_line(ssl, level, file, line, str);
244	0	}
245	0	}
246		#endif /* MBEDTLS_BIGNUM_C */
247
248		#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_INFO)
249		static void debug_print_pk(const mbedtls_ssl_context *ssl, int level,
250		const char *file, int line,
251		const char text, const mbedtls_pk_context pk)
252	0	{
253	0	size_t i;
254	0	mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS];
255	0	char name[16];
256
257	0	memset(items, 0, sizeof(items));
258
259	0	if (mbedtls_pk_debug(pk, items) != 0) {
260	0	debug_send_line(ssl, level, file, line,
261	0	"invalid PK context\n");
262	0	return;
263	0	}
264
265	0	for (i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++) {
266	0	if (items[i].type == MBEDTLS_PK_DEBUG_NONE) {
267	0	return;
268	0	}
269
270	0	mbedtls_snprintf(name, sizeof(name), "%s%s", text, items[i].name);
271	0	name[sizeof(name) - 1] = '\0';
272
273	0	if (items[i].type == MBEDTLS_PK_DEBUG_MPI) {
274	0	mbedtls_debug_print_mpi(ssl, level, file, line, name, items[i].value);
275	0	} else
276	0	#if defined(MBEDTLS_ECP_C)
277	0	if (items[i].type == MBEDTLS_PK_DEBUG_ECP) {
278	0	mbedtls_debug_print_ecp(ssl, level, file, line, name, items[i].value);
279	0	} else
280	0	#endif
281	0	{ debug_send_line(ssl, level, file, line,
282	0	"should not happen\n"); }
283	0	}
284	0	}
285
286		static void debug_print_line_by_line(const mbedtls_ssl_context *ssl, int level,
287		const char file, int line, const char text)
288	0	{
289	0	char str[DEBUG_BUF_SIZE];
290	0	const char start, cur;
291
292	0	start = text;
293	0	for (cur = text; *cur != '\0'; cur++) {
294	0	if (*cur == '\n') {
295	0	size_t len = cur - start + 1;
296	0	if (len > DEBUG_BUF_SIZE - 1) {
297	0	len = DEBUG_BUF_SIZE - 1;
298	0	}
299
300	0	memcpy(str, start, len);
301	0	str[len] = '\0';
302
303	0	debug_send_line(ssl, level, file, line, str);
304
305	0	start = cur + 1;
306	0	}
307	0	}
308	0	}
309
310		void mbedtls_debug_print_crt(const mbedtls_ssl_context *ssl, int level,
311		const char *file, int line,
312		const char text, const mbedtls_x509_crt crt)
313	3.25k	{
314	3.25k	char str[DEBUG_BUF_SIZE];
315	3.25k	int i = 0;
316
317	3.25k	if (NULL == ssl \|\|
318	3.25k	NULL == ssl->conf \|\|
319	3.25k	NULL == ssl->conf->f_dbg \|\|
320	3.25k	NULL == crt \|\|
321	3.25k	level > debug_threshold) {
322	3.25k	return;
323	3.25k	}
324
325	0	while (crt != NULL) {
326	0	char buf[1024];
327
328	0	mbedtls_snprintf(str, sizeof(str), "%s #%d:\n", text, ++i);
329	0	debug_send_line(ssl, level, file, line, str);
330
331	0	mbedtls_x509_crt_info(buf, sizeof(buf) - 1, "", crt);
332	0	debug_print_line_by_line(ssl, level, file, line, buf);
333
334	0	debug_print_pk(ssl, level, file, line, "crt->", &crt->pk);
335
336	0	crt = crt->next;
337	0	}
338	0	}
339		#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_X509_REMOVE_INFO */
340
341		#if defined(MBEDTLS_ECDH_C)
342		static void mbedtls_debug_printf_ecdh_internal(const mbedtls_ssl_context *ssl,
343		int level, const char *file,
344		int line,
345		const mbedtls_ecdh_context *ecdh,
346		mbedtls_debug_ecdh_attr attr)
347	2.54k	{
348		#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
349		const mbedtls_ecdh_context *ctx = ecdh;
350		#else
351	2.54k	const mbedtls_ecdh_context_mbed *ctx = &ecdh->ctx.mbed_ecdh;
352	2.54k	#endif
353
354	2.54k	switch (attr) {
355	0	case MBEDTLS_DEBUG_ECDH_Q:
356	0	mbedtls_debug_print_ecp(ssl, level, file, line, "ECDH: Q",
357	0	&ctx->Q);
358	0	break;
359	2.54k	case MBEDTLS_DEBUG_ECDH_QP:
360	2.54k	mbedtls_debug_print_ecp(ssl, level, file, line, "ECDH: Qp",
361	2.54k	&ctx->Qp);
362	2.54k	break;
363	0	case MBEDTLS_DEBUG_ECDH_Z:
364	0	mbedtls_debug_print_mpi(ssl, level, file, line, "ECDH: z",
365	0	&ctx->z);
366	0	break;
367	0	default:
368	0	break;
369	2.54k	}
370	2.54k	}
371
372		void mbedtls_debug_printf_ecdh(const mbedtls_ssl_context *ssl, int level,
373		const char *file, int line,
374		const mbedtls_ecdh_context *ecdh,
375		mbedtls_debug_ecdh_attr attr)
376	2.54k	{
377		#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
378		mbedtls_debug_printf_ecdh_internal(ssl, level, file, line, ecdh, attr);
379		#else
380	2.54k	switch (ecdh->var) {
381	2.54k	default:
382	2.54k	mbedtls_debug_printf_ecdh_internal(ssl, level, file, line, ecdh,
383	2.54k	attr);
384	2.54k	}
385	2.54k	#endif
386	2.54k	}
387		#endif /* MBEDTLS_ECDH_C */
388
389		#endif /* MBEDTLS_DEBUG_C */