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path: root/deps/openssl/openssl/crypto/mem_dbg.c
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Diffstat (limited to 'deps/openssl/openssl/crypto/mem_dbg.c')
-rw-r--r--deps/openssl/openssl/crypto/mem_dbg.c189
1 files changed, 115 insertions, 74 deletions
diff --git a/deps/openssl/openssl/crypto/mem_dbg.c b/deps/openssl/openssl/crypto/mem_dbg.c
index c884078e77..0489e97adb 100644
--- a/deps/openssl/openssl/crypto/mem_dbg.c
+++ b/deps/openssl/openssl/crypto/mem_dbg.c
@@ -1,5 +1,5 @@
/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -56,8 +56,8 @@ struct app_mem_info_st {
};
static CRYPTO_ONCE memdbg_init = CRYPTO_ONCE_STATIC_INIT;
-static CRYPTO_RWLOCK *malloc_lock = NULL;
-static CRYPTO_RWLOCK *long_malloc_lock = NULL;
+CRYPTO_RWLOCK *memdbg_lock;
+static CRYPTO_RWLOCK *long_memdbg_lock;
static CRYPTO_THREAD_LOCAL appinfokey;
/* memory-block description */
@@ -76,28 +76,31 @@ struct mem_st {
#endif
};
-static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as
- * key); access requires MALLOC2 lock */
+/*
+ * hash-table of memory requests (address as * key); access requires
+ * long_memdbg_lock lock
+ */
+static LHASH_OF(MEM) *mh = NULL;
/* num_disable > 0 iff mh_mode == CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */
static unsigned int num_disable = 0;
/*
- * Valid iff num_disable > 0. long_malloc_lock is locked exactly in this
+ * Valid iff num_disable > 0. long_memdbg_lock is locked exactly in this
* case (by the thread named in disabling_thread).
*/
static CRYPTO_THREAD_ID disabling_threadid;
DEFINE_RUN_ONCE_STATIC(do_memdbg_init)
{
- malloc_lock = CRYPTO_THREAD_lock_new();
- long_malloc_lock = CRYPTO_THREAD_lock_new();
- if (malloc_lock == NULL || long_malloc_lock == NULL
+ memdbg_lock = CRYPTO_THREAD_lock_new();
+ long_memdbg_lock = CRYPTO_THREAD_lock_new();
+ if (memdbg_lock == NULL || long_memdbg_lock == NULL
|| !CRYPTO_THREAD_init_local(&appinfokey, NULL)) {
- CRYPTO_THREAD_lock_free(malloc_lock);
- malloc_lock = NULL;
- CRYPTO_THREAD_lock_free(long_malloc_lock);
- long_malloc_lock = NULL;
+ CRYPTO_THREAD_lock_free(memdbg_lock);
+ memdbg_lock = NULL;
+ CRYPTO_THREAD_lock_free(long_memdbg_lock);
+ long_memdbg_lock = NULL;
return 0;
}
return 1;
@@ -105,7 +108,7 @@ DEFINE_RUN_ONCE_STATIC(do_memdbg_init)
static void app_info_free(APP_INFO *inf)
{
- if (!inf)
+ if (inf == NULL)
return;
if (--(inf->references) <= 0) {
app_info_free(inf->next);
@@ -124,7 +127,7 @@ int CRYPTO_mem_ctrl(int mode)
if (!RUN_ONCE(&memdbg_init, do_memdbg_init))
return -1;
- CRYPTO_THREAD_write_lock(malloc_lock);
+ CRYPTO_THREAD_write_lock(memdbg_lock);
switch (mode) {
default:
break;
@@ -143,26 +146,26 @@ int CRYPTO_mem_ctrl(int mode)
case CRYPTO_MEM_CHECK_DISABLE:
if (mh_mode & CRYPTO_MEM_CHECK_ON) {
CRYPTO_THREAD_ID cur = CRYPTO_THREAD_get_current_id();
- /* see if we don't have long_malloc_lock already */
+ /* see if we don't have long_memdbg_lock already */
if (!num_disable
|| !CRYPTO_THREAD_compare_id(disabling_threadid, cur)) {
/*
- * Long-time lock long_malloc_lock must not be claimed
- * while we're holding malloc_lock, or we'll deadlock
- * if somebody else holds long_malloc_lock (and cannot
+ * Long-time lock long_memdbg_lock must not be claimed
+ * while we're holding memdbg_lock, or we'll deadlock
+ * if somebody else holds long_memdbg_lock (and cannot
* release it because we block entry to this function). Give
* them a chance, first, and then claim the locks in
* appropriate order (long-time lock first).
*/
- CRYPTO_THREAD_unlock(malloc_lock);
+ CRYPTO_THREAD_unlock(memdbg_lock);
/*
- * Note that after we have waited for long_malloc_lock and
- * malloc_lock, we'll still be in the right "case" and
+ * Note that after we have waited for long_memdbg_lock and
+ * memdbg_lock, we'll still be in the right "case" and
* "if" branch because MemCheck_start and MemCheck_stop may
* never be used while there are multiple OpenSSL threads.
*/
- CRYPTO_THREAD_write_lock(long_malloc_lock);
- CRYPTO_THREAD_write_lock(malloc_lock);
+ CRYPTO_THREAD_write_lock(long_memdbg_lock);
+ CRYPTO_THREAD_write_lock(memdbg_lock);
mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE;
disabling_threadid = cur;
}
@@ -176,14 +179,14 @@ int CRYPTO_mem_ctrl(int mode)
num_disable--;
if (num_disable == 0) {
mh_mode |= CRYPTO_MEM_CHECK_ENABLE;
- CRYPTO_THREAD_unlock(long_malloc_lock);
+ CRYPTO_THREAD_unlock(long_memdbg_lock);
}
}
}
break;
}
- CRYPTO_THREAD_unlock(malloc_lock);
- return (ret);
+ CRYPTO_THREAD_unlock(memdbg_lock);
+ return ret;
#endif
}
@@ -199,14 +202,14 @@ static int mem_check_on(void)
return 0;
cur = CRYPTO_THREAD_get_current_id();
- CRYPTO_THREAD_read_lock(malloc_lock);
+ CRYPTO_THREAD_read_lock(memdbg_lock);
ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE)
|| !CRYPTO_THREAD_compare_id(disabling_threadid, cur);
- CRYPTO_THREAD_unlock(malloc_lock);
+ CRYPTO_THREAD_unlock(memdbg_lock);
}
- return (ret);
+ return ret;
}
static int mem_cmp(const MEM *a, const MEM *b)
@@ -231,7 +234,7 @@ static unsigned long mem_hash(const MEM *a)
ret = (size_t)a->addr;
ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251;
- return (ret);
+ return ret;
}
/* returns 1 if there was an info to pop, 0 if the stack was empty. */
@@ -292,7 +295,7 @@ int CRYPTO_mem_debug_push(const char *info, const char *file, int line)
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
}
- return (ret);
+ return ret;
}
int CRYPTO_mem_debug_pop(void)
@@ -304,7 +307,7 @@ int CRYPTO_mem_debug_pop(void)
ret = pop_info();
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
}
- return (ret);
+ return ret;
}
static unsigned long break_order_num = 0;
@@ -443,7 +446,8 @@ void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num,
}
typedef struct mem_leak_st {
- BIO *bio;
+ int (*print_cb) (const char *str, size_t len, void *u);
+ void *print_cb_arg;
int chunks;
long bytes;
} MEM_LEAK;
@@ -452,8 +456,9 @@ static void print_leak(const MEM *m, MEM_LEAK *l)
{
char buf[1024];
char *bufp = buf;
+ size_t len = sizeof(buf), ami_cnt;
APP_INFO *amip;
- int ami_cnt;
+ int n;
struct tm *lcl = NULL;
/*
* Convert between CRYPTO_THREAD_ID (which could be anything at all) and
@@ -466,27 +471,38 @@ static void print_leak(const MEM *m, MEM_LEAK *l)
} tid;
CRYPTO_THREAD_ID ti;
-#define BUF_REMAIN (sizeof(buf) - (size_t)(bufp - buf))
-
lcl = localtime(&m->time);
- BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ",
- lcl->tm_hour, lcl->tm_min, lcl->tm_sec);
- bufp += strlen(bufp);
+ n = BIO_snprintf(bufp, len, "[%02d:%02d:%02d] ",
+ lcl->tm_hour, lcl->tm_min, lcl->tm_sec);
+ if (n <= 0) {
+ bufp[0] = '\0';
+ return;
+ }
+ bufp += n;
+ len -= n;
- BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ",
- m->order, m->file, m->line);
- bufp += strlen(bufp);
+ n = BIO_snprintf(bufp, len, "%5lu file=%s, line=%d, ",
+ m->order, m->file, m->line);
+ if (n <= 0)
+ return;
+ bufp += n;
+ len -= n;
tid.ltid = 0;
tid.tid = m->threadid;
- BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", tid.ltid);
- bufp += strlen(bufp);
+ n = BIO_snprintf(bufp, len, "thread=%lu, ", tid.ltid);
+ if (n <= 0)
+ return;
+ bufp += n;
+ len -= n;
- BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%p\n",
- m->num, m->addr);
- bufp += strlen(bufp);
+ n = BIO_snprintf(bufp, len, "number=%d, address=%p\n", m->num, m->addr);
+ if (n <= 0)
+ return;
+ bufp += n;
+ len -= n;
- BIO_puts(l->bio, buf);
+ l->print_cb(buf, (size_t)(bufp - buf), l->print_cb_arg);
l->chunks++;
l->bytes += m->num;
@@ -502,25 +518,34 @@ static void print_leak(const MEM *m, MEM_LEAK *l)
int info_len;
ami_cnt++;
+ if (ami_cnt >= sizeof(buf) - 1)
+ break;
memset(buf, '>', ami_cnt);
+ buf[ami_cnt] = '\0';
tid.ltid = 0;
tid.tid = amip->threadid;
- BIO_snprintf(buf + ami_cnt, sizeof(buf) - ami_cnt,
- " thread=%lu, file=%s, line=%d, info=\"",
- tid.ltid, amip->file,
- amip->line);
- buf_len = strlen(buf);
+ n = BIO_snprintf(buf + ami_cnt, sizeof(buf) - ami_cnt,
+ " thread=%lu, file=%s, line=%d, info=\"",
+ tid.ltid, amip->file, amip->line);
+ if (n <= 0)
+ break;
+ buf_len = ami_cnt + n;
info_len = strlen(amip->info);
if (128 - buf_len - 3 < info_len) {
memcpy(buf + buf_len, amip->info, 128 - buf_len - 3);
buf_len = 128 - 3;
} else {
- OPENSSL_strlcpy(buf + buf_len, amip->info, sizeof(buf) - buf_len);
- buf_len = strlen(buf);
+ n = BIO_snprintf(buf + buf_len, sizeof(buf) - buf_len, "%s",
+ amip->info);
+ if (n < 0)
+ break;
+ buf_len += n;
}
- BIO_snprintf(buf + buf_len, sizeof(buf) - buf_len, "\"\n");
+ n = BIO_snprintf(buf + buf_len, sizeof(buf) - buf_len, "\"\n");
+ if (n <= 0)
+ break;
- BIO_puts(l->bio, buf);
+ l->print_cb(buf, buf_len + n, l->print_cb_arg);
amip = amip->next;
}
@@ -541,16 +566,11 @@ static void print_leak(const MEM *m, MEM_LEAK *l)
IMPLEMENT_LHASH_DOALL_ARG_CONST(MEM, MEM_LEAK);
-int CRYPTO_mem_leaks(BIO *b)
+int CRYPTO_mem_leaks_cb(int (*cb) (const char *str, size_t len, void *u),
+ void *u)
{
MEM_LEAK ml;
- /*
- * OPENSSL_cleanup() will free the ex_data locks so we can't have any
- * ex_data hanging around
- */
- bio_free_ex_data(b);
-
/* Ensure all resources are released */
OPENSSL_cleanup();
@@ -559,14 +579,19 @@ int CRYPTO_mem_leaks(BIO *b)
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE);
- ml.bio = b;
+ ml.print_cb = cb;
+ ml.print_cb_arg = u;
ml.bytes = 0;
ml.chunks = 0;
if (mh != NULL)
lh_MEM_doall_MEM_LEAK(mh, print_leak, &ml);
if (ml.chunks != 0) {
- BIO_printf(b, "%ld bytes leaked in %d chunks\n", ml.bytes, ml.chunks);
+ char buf[256];
+
+ BIO_snprintf(buf, sizeof(buf), "%ld bytes leaked in %d chunks\n",
+ ml.bytes, ml.chunks);
+ cb(buf, strlen(buf), u);
} else {
/*
* Make sure that, if we found no leaks, memory-leak debugging itself
@@ -576,7 +601,7 @@ int CRYPTO_mem_leaks(BIO *b)
*/
int old_mh_mode;
- CRYPTO_THREAD_write_lock(malloc_lock);
+ CRYPTO_THREAD_write_lock(memdbg_lock);
/*
* avoid deadlock when lh_free() uses CRYPTO_mem_debug_free(), which uses
@@ -589,20 +614,36 @@ int CRYPTO_mem_leaks(BIO *b)
mh = NULL;
mh_mode = old_mh_mode;
- CRYPTO_THREAD_unlock(malloc_lock);
+ CRYPTO_THREAD_unlock(memdbg_lock);
}
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF);
/* Clean up locks etc */
CRYPTO_THREAD_cleanup_local(&appinfokey);
- CRYPTO_THREAD_lock_free(malloc_lock);
- CRYPTO_THREAD_lock_free(long_malloc_lock);
- malloc_lock = NULL;
- long_malloc_lock = NULL;
+ CRYPTO_THREAD_lock_free(memdbg_lock);
+ CRYPTO_THREAD_lock_free(long_memdbg_lock);
+ memdbg_lock = NULL;
+ long_memdbg_lock = NULL;
return ml.chunks == 0 ? 1 : 0;
}
+static int print_bio(const char *str, size_t len, void *b)
+{
+ return BIO_write((BIO *)b, str, len);
+}
+
+int CRYPTO_mem_leaks(BIO *b)
+{
+ /*
+ * OPENSSL_cleanup() will free the ex_data locks so we can't have any
+ * ex_data hanging around
+ */
+ bio_free_ex_data(b);
+
+ return CRYPTO_mem_leaks_cb(print_bio, b);
+}
+
# ifndef OPENSSL_NO_STDIO
int CRYPTO_mem_leaks_fp(FILE *fp)
{
@@ -620,7 +661,7 @@ int CRYPTO_mem_leaks_fp(FILE *fp)
if (b == NULL)
return -1;
BIO_set_fp(b, fp, BIO_NOCLOSE);
- ret = CRYPTO_mem_leaks(b);
+ ret = CRYPTO_mem_leaks_cb(print_bio, b);
BIO_free(b);
return ret;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 03:20:11 +0000