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Core: ngx_explicit_memzero().

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This commit is contained in:
Maxim Dounin 2018-11-15 21:28:02 +03:00
parent 841c899a9e
commit 6c3838f9ed
3 changed files with 12 additions and 2 deletions
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8
src/core/ngx_string.c
View File

@ -2013,6 +2013,14 @@ ngx_sort(void *base, size_t n, size_t size,
}
void
ngx_explicit_memzero(void *buf, size_t n)
{
ngx_memzero(buf, n);
ngx_memory_barrier();
}
#if (NGX_MEMCPY_LIMIT)
void *

2
src/core/ngx_string.h
View File

@ -88,6 +88,8 @@ ngx_strlchr(u_char *p, u_char *last, u_char c)
#define ngx_memzero(buf, n) (void) memset(buf, 0, n)
#define ngx_memset(buf, c, n) (void) memset(buf, c, n)
void ngx_explicit_memzero(void *buf, size_t n);
#if (NGX_MEMCPY_LIMIT)

4
src/event/ngx_event_openssl.c
View File

@ -1051,7 +1051,7 @@ cleanup:
ngx_close_file_n " \"%s\" failed", file->data);
}
ngx_memzero(buf, NGX_SSL_PASSWORD_BUFFER_SIZE);
ngx_explicit_memzero(buf, NGX_SSL_PASSWORD_BUFFER_SIZE);
return passwords;
}
@ -1068,7 +1068,7 @@ ngx_ssl_passwords_cleanup(void *data)
pwd = passwords->elts;
for (i = 0; i < passwords->nelts; i++) {
ngx_memzero(pwd[i].data, pwd[i].len);
ngx_explicit_memzero(pwd[i].data, pwd[i].len);
}
}