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ndr: added support for NDR64

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This adds NDR64 support for the push functions in libndr
This commit is contained in:
Andrew Tridgell 2009-09-17 09:08:47 -07:00
parent 7326b8f63e
commit 056cbf7f81
3 changed files with 54 additions and 18 deletions
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27
librpc/ndr/libndr.h
View File

@ -165,7 +165,7 @@ struct ndr_print {
#define NDR_PRINT_OUT_STRING(ctx, type, p) NDR_PRINT_FUNCTION_STRING(ctx, type, NDR_OUT, p)
#define NDR_PRINT_IN_STRING(ctx, type, p) NDR_PRINT_FUNCTION_STRING(ctx, type, NDR_IN | NDR_SET_VALUES, p)
#define NDR_BE(ndr) (((ndr)->flags & (LIBNDR_FLAG_BIGENDIAN|LIBNDR_FLAG_LITTLE_ENDIAN)) == LIBNDR_FLAG_BIGENDIAN)
#define NDR_BE(ndr) (unlikely(((ndr)->flags & (LIBNDR_FLAG_BIGENDIAN|LIBNDR_FLAG_LITTLE_ENDIAN)) == LIBNDR_FLAG_BIGENDIAN))
enum ndr_err_code {
NDR_ERR_SUCCESS = 0,
@ -185,7 +185,8 @@ enum ndr_err_code {
NDR_ERR_TOKEN,
NDR_ERR_IPV4ADDRESS,
NDR_ERR_INVALID_POINTER,
NDR_ERR_UNREAD_BYTES
NDR_ERR_UNREAD_BYTES,
NDR_ERR_NDR64
};
#define NDR_ERR_CODE_IS_SUCCESS(x) (x == NDR_ERR_SUCCESS)
@ -216,7 +217,7 @@ enum ndr_compression_alg {
#define NDR_SET_VALUES 4
#define NDR_PULL_NEED_BYTES(ndr, n) do { \
if ((n) > ndr->data_size || ndr->offset + (n) > ndr->data_size) { \
if (unlikely((n) > ndr->data_size || ndr->offset + (n) > ndr->data_size)) { \
return ndr_pull_error(ndr, NDR_ERR_BUFSIZE, "Pull bytes %u (%s)", (unsigned)n, __location__); \
} \
} while(0)
@ -226,13 +227,13 @@ enum ndr_compression_alg {
#define NDR_ROUND(size, n) (((size)+((n)-1)) & ~((n)-1))
#define NDR_PULL_ALIGN(ndr, n) do { \
if (!(ndr->flags & LIBNDR_FLAG_NOALIGN)) { \
if (ndr->flags & LIBNDR_FLAG_PAD_CHECK) { \
if (unlikely(!(ndr->flags & LIBNDR_FLAG_NOALIGN))) { \
if (unlikely(ndr->flags & LIBNDR_FLAG_PAD_CHECK)) { \
ndr_check_padding(ndr, n); \
} \
ndr->offset = (ndr->offset + (n-1)) & ~(n-1); \
} \
if (ndr->offset > ndr->data_size) { \
if (unlikely(ndr->offset > ndr->data_size)) { \
return ndr_pull_error(ndr, NDR_ERR_BUFSIZE, "Pull align %u", (unsigned)n); \
} \
} while(0)
@ -240,7 +241,7 @@ enum ndr_compression_alg {
#define NDR_PUSH_NEED_BYTES(ndr, n) NDR_CHECK(ndr_push_expand(ndr, n))
#define NDR_PUSH_ALIGN(ndr, n) do { \
if (!(ndr->flags & LIBNDR_FLAG_NOALIGN)) { \
if (likely(!(ndr->flags & LIBNDR_FLAG_NOALIGN))) { \
uint32_t _pad = ((ndr->offset + (n-1)) & ~(n-1)) - ndr->offset; \
while (_pad--) NDR_CHECK(ndr_push_uint8(ndr, NDR_SCALARS, 0)); \
} \
@ -251,7 +252,7 @@ enum ndr_compression_alg {
#define NDR_CHECK(call) do { \
enum ndr_err_code _status; \
_status = call; \
if (!NDR_ERR_CODE_IS_SUCCESS(_status)) { \
if (unlikely(!NDR_ERR_CODE_IS_SUCCESS(_status))) { \
return _status; \
} \
} while (0)
@ -260,7 +261,7 @@ enum ndr_compression_alg {
#define NDR_CHECK_FREE(call) do { \
enum ndr_err_code _status; \
_status = call; \
if (!NDR_ERR_CODE_IS_SUCCESS(_status)) { \
if (unlikely(!NDR_ERR_CODE_IS_SUCCESS(_status))) { \
talloc_free(ndr); \
return _status; \
} \
@ -289,24 +290,24 @@ enum ndr_compression_alg {
#define NDR_PULL_ALLOC(ndr, s) do { \
_NDR_PULL_FIX_CURRENT_MEM_CTX(ndr);\
(s) = talloc_ptrtype(ndr->current_mem_ctx, (s)); \
if (!(s)) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "Alloc %s failed: %s\n", # s, __location__); \
if (unlikely(!(s))) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "Alloc %s failed: %s\n", # s, __location__); \
} while (0)
#define NDR_PULL_ALLOC_N(ndr, s, n) do { \
_NDR_PULL_FIX_CURRENT_MEM_CTX(ndr);\
(s) = talloc_array_ptrtype(ndr->current_mem_ctx, (s), n); \
if (!(s)) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "Alloc %u * %s failed: %s\n", (unsigned)n, # s, __location__); \
if (unlikely(!(s))) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "Alloc %u * %s failed: %s\n", (unsigned)n, # s, __location__); \
} while (0)
#define NDR_PUSH_ALLOC_SIZE(ndr, s, size) do { \
(s) = talloc_array(ndr, uint8_t, size); \
if (!(s)) return ndr_push_error(ndr, NDR_ERR_ALLOC, "push alloc %u failed: %s\n", (unsigned)size, __location__); \
if (unlikely(!(s))) return ndr_push_error(ndr, NDR_ERR_ALLOC, "push alloc %u failed: %s\n", (unsigned)size, __location__); \
} while (0)
#define NDR_PUSH_ALLOC(ndr, s) do { \
(s) = talloc_ptrtype(ndr, (s)); \
if (!(s)) return ndr_push_error(ndr, NDR_ERR_ALLOC, "push alloc %s failed: %s\n", # s, __location__); \
if (unlikely(!(s))) return ndr_push_error(ndr, NDR_ERR_ALLOC, "push alloc %s failed: %s\n", # s, __location__); \
} while (0)
/* these are used when generic fn pointers are needed for ndr push/pull fns */

3
librpc/ndr/ndr.c
View File

@ -355,9 +355,11 @@ _PUBLIC_ void ndr_set_flags(uint32_t *pflags, uint32_t new_flags)
/* the big/little endian flags are inter-dependent */
if (new_flags & LIBNDR_FLAG_LITTLE_ENDIAN) {
(*pflags) &= ~LIBNDR_FLAG_BIGENDIAN;
(*pflags) &= ~LIBNDR_FLAG_NDR64;
}
if (new_flags & LIBNDR_FLAG_BIGENDIAN) {
(*pflags) &= ~LIBNDR_FLAG_LITTLE_ENDIAN;
(*pflags) &= ~LIBNDR_FLAG_NDR64;
}
if (new_flags & LIBNDR_FLAG_REMAINING) {
(*pflags) &= ~LIBNDR_ALIGN_FLAGS;
@ -1168,6 +1170,7 @@ const static struct {
{ NDR_ERR_IPV4ADDRESS, "IPv4 Address Error" },
{ NDR_ERR_INVALID_POINTER, "Invalid Pointer" },
{ NDR_ERR_UNREAD_BYTES, "Unread Bytes" },
{ NDR_ERR_NDR64, "NDR64 assertion error" },
{ 0, NULL }
};

42
librpc/ndr/ndr_basic.c
View File

@ -132,14 +132,15 @@ _PUBLIC_ enum ndr_err_code ndr_pull_uint3264(struct ndr_pull *ndr, int ndr_flags
{
uint64_t v64;
enum ndr_err_code err;
if (!(ndr->flags & LIBNDR_FLAG_NDR64)) {
if (likely(!(ndr->flags & LIBNDR_FLAG_NDR64))) {
return ndr_pull_uint32(ndr, ndr_flags, v);
}
err = ndr_pull_hyper(ndr, ndr_flags, &v64);
*v = (uint32_t)v64;
if (v64 != *v) {
if (unlikely(v64 != *v)) {
DEBUG(0,(__location__ ": non-zero upper 32 bits 0x%016llx\n",
(unsigned long long)v64));
return NDR_ERR_NDR64;
}
return err;
}
@ -376,6 +377,21 @@ _PUBLIC_ enum ndr_err_code ndr_push_uint32(struct ndr_push *ndr, int ndr_flags,
return NDR_ERR_SUCCESS;
}
/*
push a uint3264
*/
_PUBLIC_ enum ndr_err_code ndr_push_uint3264(struct ndr_push *ndr, int ndr_flags, uint32_t v)
{
if (unlikely(ndr->flags & LIBNDR_FLAG_NDR64)) {
return ndr_push_hyper(ndr, ndr_flags, v);
}
NDR_PUSH_ALIGN(ndr, 4);
NDR_PUSH_NEED_BYTES(ndr, 4);
NDR_SIVAL(ndr, ndr->offset, v);
ndr->offset += 4;
return NDR_ERR_SUCCESS;
}
/*
push a udlong
*/
@ -446,12 +462,28 @@ _PUBLIC_ enum ndr_err_code ndr_push_pointer(struct ndr_push *ndr, int ndr_flags,
_PUBLIC_ enum ndr_err_code ndr_push_align(struct ndr_push *ndr, size_t size)
{
/* this is a nasty hack to make pidl work with NDR64 */
if (size == 5) {
if (ndr->flags & LIBNDR_FLAG_NDR64) {
size = 8;
} else {
size = 4;
}
}
NDR_PUSH_ALIGN(ndr, size);
return NDR_ERR_SUCCESS;
}
_PUBLIC_ enum ndr_err_code ndr_pull_align(struct ndr_pull *ndr, size_t size)
{
/* this is a nasty hack to make pidl work with NDR64 */
if (size == 5) {
if (ndr->flags & LIBNDR_FLAG_NDR64) {
size = 8;
} else {
size = 4;
}
}
NDR_PULL_ALIGN(ndr, size);
return NDR_ERR_SUCCESS;
}
@ -500,7 +532,7 @@ _PUBLIC_ enum ndr_err_code ndr_push_unique_ptr(struct ndr_push *ndr, const void
ptr |= 0x00020000;
ndr->ptr_count++;
}
return ndr_push_uint32(ndr, NDR_SCALARS, ptr);
return ndr_push_uint3264(ndr, NDR_SCALARS, ptr);
}
/*
@ -518,7 +550,7 @@ _PUBLIC_ enum ndr_err_code ndr_push_full_ptr(struct ndr_push *ndr, const void *p
ndr_token_store(ndr, &ndr->full_ptr_list, p, ptr);
}
}
return ndr_push_uint32(ndr, NDR_SCALARS, ptr);
return ndr_push_uint3264(ndr, NDR_SCALARS, ptr);
}
/*
@ -526,7 +558,7 @@ _PUBLIC_ enum ndr_err_code ndr_push_full_ptr(struct ndr_push *ndr, const void *p
*/
_PUBLIC_ enum ndr_err_code ndr_push_ref_ptr(struct ndr_push *ndr)
{
return ndr_push_uint32(ndr, NDR_SCALARS, 0xAEF1AEF1);
return ndr_push_uint3264(ndr, NDR_SCALARS, 0xAEF1AEF1);
}