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msv1_0: Define the communication structure only on the Unix side.

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Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-11-09 11:40:39 +01:00
parent fcc827d141
commit 1307d44f43
2 changed files with 39 additions and 22 deletions
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55
dlls/msv1_0/unixlib.c
View file

@ -44,38 +44,51 @@ WINE_DECLARE_DEBUG_CHANNEL(winediag);
#define INITIAL_BUFFER_SIZE 200
struct com_buf
{
char *buffer;
unsigned int size;
unsigned int offset;
};
static SECURITY_STATUS read_line( struct ntlm_ctx *ctx, unsigned int *offset )
{
char *newline;
struct com_buf *com_buf = ctx->com_buf;
if (!ctx->com_buf)
if (!com_buf)
{
if (!(ctx->com_buf = malloc( INITIAL_BUFFER_SIZE )))
if (!(com_buf = malloc( sizeof(*com_buf) ))) return SEC_E_INSUFFICIENT_MEMORY;
if (!(com_buf->buffer = malloc( INITIAL_BUFFER_SIZE )))
{
free( com_buf );
return SEC_E_INSUFFICIENT_MEMORY;
ctx->com_buf_size = INITIAL_BUFFER_SIZE;
ctx->com_buf_offset = 0;
}
com_buf->size = INITIAL_BUFFER_SIZE;
com_buf->offset = 0;
ctx->com_buf = com_buf;
}
do
{
ssize_t size;
if (ctx->com_buf_offset + INITIAL_BUFFER_SIZE > ctx->com_buf_size)
if (com_buf->offset + INITIAL_BUFFER_SIZE > com_buf->size)
{
char *buf = realloc( ctx->com_buf, ctx->com_buf_size + INITIAL_BUFFER_SIZE );
char *buf = realloc( com_buf->buffer, com_buf->size + INITIAL_BUFFER_SIZE );
if (!buf) return SEC_E_INSUFFICIENT_MEMORY;
ctx->com_buf_size += INITIAL_BUFFER_SIZE;
ctx->com_buf = buf;
com_buf->size += INITIAL_BUFFER_SIZE;
com_buf->buffer = buf;
}
size = read( ctx->pipe_in, ctx->com_buf + ctx->com_buf_offset, ctx->com_buf_size - ctx->com_buf_offset );
size = read( ctx->pipe_in, com_buf->buffer + com_buf->offset, com_buf->size - com_buf->offset );
if (size <= 0) return SEC_E_INTERNAL_ERROR;
ctx->com_buf_offset += size;
newline = memchr( ctx->com_buf, '\n', ctx->com_buf_offset );
com_buf->offset += size;
newline = memchr( com_buf->buffer, '\n', com_buf->offset );
} while (!newline);
/* if there's a newline character, and we read more than that newline, we have to store the offset so we can
preserve the additional data */
if (newline != ctx->com_buf + ctx->com_buf_offset) *offset = (ctx->com_buf + ctx->com_buf_offset) - (newline + 1);
if (newline != com_buf->buffer + com_buf->offset) *offset = (com_buf->buffer + com_buf->offset) - (newline + 1);
else *offset = 0;
*newline = 0;
@ -86,6 +99,7 @@ static NTSTATUS ntlm_chat( void *args )
{
struct chat_params *params = args;
struct ntlm_ctx *ctx = params->ctx;
struct com_buf *com_buf;
SECURITY_STATUS status = SEC_E_OK;
unsigned int offset;
@ -93,19 +107,20 @@ static NTSTATUS ntlm_chat( void *args )
write( ctx->pipe_out, "\n", 1 );
if ((status = read_line( ctx, &offset )) != SEC_E_OK) return status;
*params->retlen = strlen( ctx->com_buf );
com_buf = ctx->com_buf;
*params->retlen = strlen( com_buf->buffer );
if (*params->retlen > params->buflen) return SEC_E_BUFFER_TOO_SMALL;
if (*params->retlen < 2) return SEC_E_ILLEGAL_MESSAGE;
if (!strncmp( ctx->com_buf, "ERR", 3 )) return SEC_E_INVALID_TOKEN;
if (!strncmp( com_buf->buffer, "ERR", 3 )) return SEC_E_INVALID_TOKEN;
memcpy( params->buf, ctx->com_buf, *params->retlen + 1 );
memcpy( params->buf, com_buf->buffer, *params->retlen + 1 );
if (!offset) ctx->com_buf_offset = 0;
if (!offset) com_buf->offset = 0;
else
{
memmove( ctx->com_buf, ctx->com_buf + ctx->com_buf_offset, offset );
ctx->com_buf_offset = offset;
memmove( com_buf->buffer, com_buf->buffer + com_buf->offset, offset );
com_buf->offset = offset;
}
return SEC_E_OK;
@ -115,6 +130,7 @@ static NTSTATUS ntlm_cleanup( void *args )
{
struct cleanup_params *params = args;
struct ntlm_ctx *ctx = params->ctx;
struct com_buf *com_buf = ctx->com_buf;
if (!ctx || (ctx->mode != MODE_CLIENT && ctx->mode != MODE_SERVER)) return STATUS_INVALID_HANDLE;
ctx->mode = MODE_INVALID;
@ -131,7 +147,8 @@ static NTSTATUS ntlm_cleanup( void *args )
} while (ret < 0 && errno == EINTR);
}
free( ctx->com_buf );
if (com_buf) free( com_buf->buffer );
free( com_buf );
return STATUS_SUCCESS;
}

6
dlls/msv1_0/unixlib.h
View file

@ -57,6 +57,8 @@ struct arc4_info
#define FLAG_NEGOTIATE_NTLM2 0x00080000
#define FLAG_NEGOTIATE_KEY_EXCHANGE 0x40000000
struct com_buf;
struct ntlm_ctx
{
enum mode mode;
@ -64,11 +66,9 @@ struct ntlm_ctx
unsigned int attrs;
int pipe_in;
int pipe_out;
char *com_buf;
unsigned int com_buf_size;
unsigned int com_buf_offset;
char session_key[16];
unsigned int flags;
struct com_buf *com_buf;
struct
{
struct