*/
#include "includes.h"
+#include "dlinklist.h"
#define NDR_BASE_MARSHALL_SIZE 1024
-
/*
work out the number of bytes needed to align on a n byte boundary
*/
-size_t ndr_align_size(uint32 offset, size_t n)
+size_t ndr_align_size(uint32_t offset, size_t n)
{
if ((offset & (n-1)) == 0) return 0;
return n - (offset & (n-1));
/*
initialise a ndr parse structure from a data blob
*/
-struct ndr_pull *ndr_pull_init_blob(DATA_BLOB *blob, TALLOC_CTX *mem_ctx)
+struct ndr_pull *ndr_pull_init_blob(const DATA_BLOB *blob, TALLOC_CTX *mem_ctx)
{
struct ndr_pull *ndr;
- ndr = talloc(mem_ctx, sizeof(*ndr));
+ ndr = talloc_zero_p(mem_ctx, struct ndr_pull);
if (!ndr) return NULL;
- ndr->flags = 0;
ndr->data = blob->data;
ndr->data_size = blob->length;
- ndr->offset = 0;
- ndr->mem_ctx = mem_ctx;
return ndr;
}
create an ndr sub-context based on an existing context. The new context starts
at the current offset, with the given size limit
*/
-NTSTATUS ndr_pull_subcontext(struct ndr_pull *ndr, struct ndr_pull *ndr2, uint32 size)
+NTSTATUS ndr_pull_subcontext(struct ndr_pull *ndr, struct ndr_pull *ndr2, uint32_t size)
{
NDR_PULL_NEED_BYTES(ndr, size);
*ndr2 = *ndr;
}
-/* limit the remaining size of the current ndr parse structure to the
- given size, starting at the given offset
-
- this is used when a ndr packet has an explicit size on the wire, and we
- need to make sure that we don't use more data than is indicated
-
- the 'ofs' parameter indicates how many bytes back from the current
- offset in the buffer the 'size' number of bytes starts
-*/
-NTSTATUS ndr_pull_limit_size(struct ndr_pull *ndr, uint32 size, uint32 ofs)
-{
- uint32 new_size;
- new_size = ndr->offset + size - ofs;
-
- if (new_size > ndr->data_size) {
- return ndr_pull_error(ndr, NDR_ERR_BUFSIZE,
- "ndr_pull_limit_size %s %u failed",
- size, ofs);
- }
- ndr->data_size = new_size;
-
- return NT_STATUS_OK;
-}
-
-
/*
advance by 'size' bytes
*/
-NTSTATUS ndr_pull_advance(struct ndr_pull *ndr, uint32 size)
+NTSTATUS ndr_pull_advance(struct ndr_pull *ndr, uint32_t size)
{
ndr->offset += size;
if (ndr->offset > ndr->data_size) {
/*
set the parse offset to 'ofs'
*/
-NTSTATUS ndr_pull_set_offset(struct ndr_pull *ndr, uint32 ofs)
+NTSTATUS ndr_pull_set_offset(struct ndr_pull *ndr, uint32_t ofs)
{
ndr->offset = ofs;
if (ndr->offset > ndr->data_size) {
{
struct ndr_push *ndr;
- ndr = talloc(mem_ctx, sizeof(*ndr));
+ ndr = talloc_zero_p(mem_ctx, struct ndr_push);
if (!ndr) {
return NULL;
}
- ndr->mem_ctx = mem_ctx;
ndr->flags = 0;
ndr->alloc_size = NDR_BASE_MARSHALL_SIZE;
- ndr->data = talloc(ndr->mem_ctx, ndr->alloc_size);
+ ndr->data = talloc_array_p(ndr, uint8_t, ndr->alloc_size);
if (!ndr->data) {
return NULL;
}
- ndr->offset = 0;
- ndr->ptr_count = 0;
- ndr->relative_list = NULL;
- ndr->relative_list_end = NULL;
-
+
return ndr;
}
/* create a ndr_push structure, ready for some marshalling */
struct ndr_push *ndr_push_init(void)
{
- struct ndr_push *ndr;
- TALLOC_CTX *mem_ctx = talloc_init("ndr_push_init");
- if (!mem_ctx) return NULL;
- ndr = ndr_push_init_ctx(mem_ctx);
- if (!ndr) {
- talloc_destroy(mem_ctx);
- }
- return ndr;
+ return ndr_push_init_ctx(NULL);
}
/* free a ndr_push structure */
void ndr_push_free(struct ndr_push *ndr)
{
- talloc_destroy(ndr->mem_ctx);
+ talloc_free(ndr);
}
/*
expand the available space in the buffer to 'size'
*/
-NTSTATUS ndr_push_expand(struct ndr_push *ndr, uint32 size)
+NTSTATUS ndr_push_expand(struct ndr_push *ndr, uint32_t size)
{
if (ndr->alloc_size >= size) {
return NT_STATUS_OK;
if (size > ndr->alloc_size) {
ndr->alloc_size = size;
}
- ndr->data = talloc_realloc(ndr->mem_ctx, ndr->data, ndr->alloc_size);
+ ndr->data = talloc_realloc(ndr, ndr->data, uint8_t, ndr->alloc_size);
if (!ndr->data) {
return ndr_push_error(ndr, NDR_ERR_ALLOC, "Failed to push_expand to %u",
ndr->alloc_size);
/*
set the push offset to 'ofs'
*/
-NTSTATUS ndr_push_set_offset(struct ndr_push *ndr, uint32 ofs)
+NTSTATUS ndr_push_set_offset(struct ndr_push *ndr, uint32_t ofs)
{
NDR_CHECK(ndr_push_expand(ndr, ofs));
ndr->offset = ofs;
push a generic array
*/
NTSTATUS ndr_push_array(struct ndr_push *ndr, int ndr_flags, void *base,
- size_t elsize, uint32 count,
+ size_t elsize, uint32_t count,
NTSTATUS (*push_fn)(struct ndr_push *, int, void *))
{
int i;
pull a constant sized array
*/
NTSTATUS ndr_pull_array(struct ndr_pull *ndr, int ndr_flags, void *base,
- size_t elsize, uint32 count,
+ size_t elsize, uint32_t count,
NTSTATUS (*pull_fn)(struct ndr_pull *, int, void *))
{
int i;
return NT_STATUS_OK;
}
+/*
+ pull a constant size array of structures
+*/
+NTSTATUS ndr_pull_struct_array(struct ndr_pull *ndr, uint32_t count,
+ size_t elsize, void **info,
+ NTSTATUS (*pull_fn)(struct ndr_pull *, int, void *))
+{
+ int i;
+ char *base;
+
+ NDR_ALLOC_N_SIZE(ndr, *info, count, elsize);
+ base = (char *)*info;
+
+ for (i = 0; i < count; i++) {
+ ndr->data += ndr->offset;
+ ndr->offset = 0;
+ NDR_CHECK(pull_fn(ndr, NDR_SCALARS|NDR_BUFFERS, &base[count * elsize]));
+ }
+
+ return NT_STATUS_OK;
+}
/*
print a generic array
*/
void ndr_print_array(struct ndr_print *ndr, const char *name, void *base,
- size_t elsize, uint32 count,
+ size_t elsize, uint32_t count,
void (*print_fn)(struct ndr_print *, const char *, void *))
{
int i;
-static void ndr_print_debug_helper(struct ndr_print *ndr, const char *format, ...)
+void ndr_print_debug_helper(struct ndr_print *ndr, const char *format, ...) _PRINTF_ATTRIBUTE(2,3)
{
va_list ap;
char *s = NULL;
/*
a useful helper function for printing idl structures via DEBUG()
*/
-void ndr_print_debug(void (*fn)(struct ndr_print *, const char *, void *),
- const char *name,
- void *ptr)
+void ndr_print_debug(ndr_print_fn_t fn, const char *name, void *ptr)
{
- struct ndr_print ndr;
+ struct ndr_print *ndr;
- ndr.mem_ctx = talloc_init("ndr_print_debug");
- if (!ndr.mem_ctx) return;
- ndr.print = ndr_print_debug_helper;
- ndr.depth = 1;
- fn(&ndr, name, ptr);
- talloc_destroy(ndr.mem_ctx);
+ ndr = talloc_p(NULL, struct ndr_print);
+ if (!ndr) return;
+ ndr->print = ndr_print_debug_helper;
+ ndr->depth = 1;
+ ndr->flags = 0;
+ fn(ndr, name, ptr);
+ talloc_free(ndr);
}
/*
a useful helper function for printing idl unions via DEBUG()
*/
-void ndr_print_union_debug(void (*fn)(struct ndr_print *, const char *, uint32, void *),
- const char *name,
- uint32 level,
- void *ptr)
+void ndr_print_union_debug(ndr_print_union_fn_t fn, const char *name, uint32_t level, void *ptr)
{
- struct ndr_print ndr;
+ struct ndr_print *ndr;
- ndr.mem_ctx = talloc_init("ndr_print_union");
- if (!ndr.mem_ctx) return;
- ndr.print = ndr_print_debug_helper;
- ndr.depth = 1;
- fn(&ndr, name, level, ptr);
- talloc_destroy(ndr.mem_ctx);
+ ndr = talloc_p(NULL, struct ndr_print);
+ if (!ndr) return;
+ ndr->print = ndr_print_debug_helper;
+ ndr->depth = 1;
+ ndr->flags = 0;
+ fn(ndr, name, level, ptr);
+ talloc_free(ndr);
}
/*
a useful helper function for printing idl function calls via DEBUG()
*/
-void ndr_print_function_debug(void (*fn)(struct ndr_print *, const char *, int , void *),
- const char *name,
- int flags,
- void *ptr)
+void ndr_print_function_debug(ndr_print_function_t fn, const char *name, int flags, void *ptr)
{
- struct ndr_print ndr;
+ struct ndr_print *ndr;
- if (!DEBUGLVL(2)) {
- return;
- }
-
- ndr.mem_ctx = talloc_init("ndr_print_function");
- if (!ndr.mem_ctx) return;
- ndr.print = ndr_print_debug_helper;
- ndr.depth = 1;
- fn(&ndr, name, flags, ptr);
- talloc_destroy(ndr.mem_ctx);
+ ndr = talloc_p(NULL, struct ndr_print);
+ if (!ndr) return;
+ ndr->print = ndr_print_debug_helper;
+ ndr->depth = 1;
+ ndr->flags = 0;
+ fn(ndr, name, flags, ptr);
+ talloc_free(ndr);
}
+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;
+ }
+ if (new_flags & LIBNDR_FLAG_BIGENDIAN) {
+ (*pflags) &= ~LIBNDR_FLAG_LITTLE_ENDIAN;
+ }
+ (*pflags) |= new_flags;
+}
static NTSTATUS ndr_map_error(enum ndr_err_code err)
{
switch (err) {
case NDR_ERR_BUFSIZE:
return NT_STATUS_BUFFER_TOO_SMALL;
+ case NDR_ERR_TOKEN:
+ return NT_STATUS_INTERNAL_ERROR;
case NDR_ERR_ALLOC:
return NT_STATUS_NO_MEMORY;
+ case NDR_ERR_ARRAY_SIZE:
+ return NT_STATUS_ARRAY_BOUNDS_EXCEEDED;
+ default:
+ break;
}
/* we should all error codes to different status codes */
/*
return and possibly log an NDR error
*/
-NTSTATUS ndr_pull_error(struct ndr_pull *ndr, enum ndr_err_code err, const char *format, ...)
+NTSTATUS ndr_pull_error(struct ndr_pull *ndr,
+ enum ndr_err_code err, const char *format, ...) _PRINTF_ATTRIBUTE(3,4)
{
char *s=NULL;
va_list ap;
/*
return and possibly log an NDR error
*/
-NTSTATUS ndr_push_error(struct ndr_push *ndr, enum ndr_err_code err, const char *format, ...)
+NTSTATUS ndr_push_error(struct ndr_push *ndr, enum ndr_err_code err, const char *format, ...) _PRINTF_ATTRIBUTE(3,4)
{
char *s=NULL;
va_list ap;
{
switch (sub_size) {
case 0: {
- uint32 size = ndr->data_size - ndr->offset;
+ uint32_t size = ndr->data_size - ndr->offset;
if (size == 0) return NT_STATUS_OK;
NDR_CHECK(ndr_pull_subcontext(ndr, ndr2, size));
break;
}
case 2: {
- uint16 size;
+ uint16_t size;
NDR_CHECK(ndr_pull_uint16(ndr, &size));
if (size == 0) return NT_STATUS_OK;
NDR_CHECK(ndr_pull_subcontext(ndr, ndr2, size));
}
case 4: {
- uint32 size;
+ uint32_t size;
NDR_CHECK(ndr_pull_uint32(ndr, &size));
if (size == 0) return NT_STATUS_OK;
NDR_CHECK(ndr_pull_subcontext(ndr, ndr2, size));
handle subcontext buffers, which in midl land are user-marshalled, but
we use magic in pidl to make them easier to cope with
*/
-NTSTATUS ndr_pull_subcontext_fn(struct ndr_pull *ndr,
- size_t sub_size,
- void *base,
- NTSTATUS (*fn)(struct ndr_pull *, void *))
+NTSTATUS ndr_pull_subcontext_fn(struct ndr_pull *ndr, size_t sub_size,
+ void *base, ndr_pull_fn_t fn)
{
- struct ndr_pull ndr2;
-
- NDR_CHECK(ndr_pull_subcontext_header(ndr, sub_size, &ndr2));
- NDR_CHECK(fn(&ndr2, base));
+ struct ndr_pull *ndr2;
+ NDR_ALLOC(ndr, ndr2);
+ NDR_CHECK(ndr_pull_subcontext_header(ndr, sub_size, ndr2));
+ NDR_CHECK(fn(ndr2, base));
if (sub_size) {
- NDR_CHECK(ndr_pull_advance(ndr, ndr2.data_size));
+ NDR_CHECK(ndr_pull_advance(ndr, ndr2->data_size));
} else {
- NDR_CHECK(ndr_pull_advance(ndr, ndr2.offset));
+ NDR_CHECK(ndr_pull_advance(ndr, ndr2->offset));
}
return NT_STATUS_OK;
}
-NTSTATUS ndr_pull_subcontext_flags_fn(struct ndr_pull *ndr,
- size_t sub_size,
- void *base,
- NTSTATUS (*fn)(struct ndr_pull *, int , void *))
+NTSTATUS ndr_pull_subcontext_flags_fn(struct ndr_pull *ndr, size_t sub_size,
+ void *base, ndr_pull_flags_fn_t fn)
{
- struct ndr_pull ndr2;
-
- NDR_CHECK(ndr_pull_subcontext_header(ndr, sub_size, &ndr2));
- NDR_CHECK(fn(&ndr2, NDR_SCALARS|NDR_BUFFERS, base));
+ struct ndr_pull *ndr2;
+ NDR_ALLOC(ndr, ndr2);
+ NDR_CHECK(ndr_pull_subcontext_header(ndr, sub_size, ndr2));
+ NDR_CHECK(fn(ndr2, NDR_SCALARS|NDR_BUFFERS, base));
if (sub_size) {
- NDR_CHECK(ndr_pull_advance(ndr, ndr2.data_size));
+ NDR_CHECK(ndr_pull_advance(ndr, ndr2->data_size));
} else {
- NDR_CHECK(ndr_pull_advance(ndr, ndr2.offset));
+ NDR_CHECK(ndr_pull_advance(ndr, ndr2->offset));
}
return NT_STATUS_OK;
}
-NTSTATUS ndr_pull_subcontext_union_fn(struct ndr_pull *ndr,
- size_t sub_size,
- uint32 level,
- void *base,
- NTSTATUS (*fn)(struct ndr_pull *, int , uint32 , void *))
+NTSTATUS ndr_pull_subcontext_union_fn(struct ndr_pull *ndr, size_t sub_size,
+ uint32_t level, void *base, ndr_pull_union_fn_t fn)
{
- struct ndr_pull ndr2;
+ struct ndr_pull *ndr2;
- NDR_CHECK(ndr_pull_subcontext_header(ndr, sub_size, &ndr2));
- NDR_CHECK(fn(&ndr2, NDR_SCALARS|NDR_BUFFERS, level, base));
+ NDR_ALLOC(ndr, ndr2);
+ NDR_CHECK(ndr_pull_subcontext_header(ndr, sub_size, ndr2));
+ NDR_CHECK(fn(ndr2, NDR_SCALARS|NDR_BUFFERS, level, base));
if (sub_size) {
- NDR_CHECK(ndr_pull_advance(ndr, ndr2.data_size));
+ NDR_CHECK(ndr_pull_advance(ndr, ndr2->data_size));
} else {
- NDR_CHECK(ndr_pull_advance(ndr, ndr2.offset));
+ NDR_CHECK(ndr_pull_advance(ndr, ndr2->offset));
}
return NT_STATUS_OK;
}
handle subcontext buffers, which in midl land are user-marshalled, but
we use magic in pidl to make them easier to cope with
*/
-NTSTATUS ndr_push_subcontext_fn(struct ndr_push *ndr,
- size_t sub_size,
- void *base,
- NTSTATUS (*fn)(struct ndr_push *, void *))
+NTSTATUS ndr_push_subcontext_fn(struct ndr_push *ndr, size_t sub_size,
+ void *base, ndr_push_fn_t fn)
{
struct ndr_push *ndr2;
- ndr2 = ndr_push_init_ctx(ndr->mem_ctx);
+ ndr2 = ndr_push_init_ctx(ndr);
if (!ndr2) return NT_STATUS_NO_MEMORY;
ndr2->flags = ndr->flags;
/*
handle subcontext buffers for function that take a flags arg
*/
-NTSTATUS ndr_push_subcontext_flags_fn(struct ndr_push *ndr,
- size_t sub_size,
- void *base,
- NTSTATUS (*fn)(struct ndr_push *, int, void *))
+NTSTATUS ndr_push_subcontext_flags_fn(struct ndr_push *ndr, size_t sub_size,
+ void *base, ndr_push_flags_fn_t fn)
{
struct ndr_push *ndr2;
- ndr2 = ndr_push_init_ctx(ndr->mem_ctx);
+ ndr2 = ndr_push_init_ctx(ndr);
if (!ndr2) return NT_STATUS_NO_MEMORY;
ndr2->flags = ndr->flags;
/*
handle subcontext buffers for function that take a union
*/
-NTSTATUS ndr_push_subcontext_union_fn(struct ndr_push *ndr,
- size_t sub_size,
- uint32 level,
- void *base,
- NTSTATUS (*fn)(struct ndr_push *, int, uint32, void *))
+NTSTATUS ndr_push_subcontext_union_fn(struct ndr_push *ndr, size_t sub_size,
+ uint32_t level, void *base, ndr_push_union_fn_t fn)
{
struct ndr_push *ndr2;
- ndr2 = ndr_push_init_ctx(ndr->mem_ctx);
+ ndr2 = ndr_push_init_ctx(ndr);
if (!ndr2) return NT_STATUS_NO_MEMORY;
ndr2->flags = ndr->flags;
*/
NTSTATUS ndr_pull_struct_start(struct ndr_pull *ndr)
{
- struct ndr_ofs_list *ofs;
- NDR_ALLOC(ndr, ofs);
- ofs->offset = ndr->offset;
- ofs->next = ndr->ofs_list;
- ndr->ofs_list = ofs;
return NT_STATUS_OK;
}
*/
void ndr_pull_struct_end(struct ndr_pull *ndr)
{
- ndr->ofs_list = ndr->ofs_list->next;
}
/*
*/
NTSTATUS ndr_push_struct_start(struct ndr_push *ndr)
{
- struct ndr_ofs_list *ofs;
- NDR_PUSH_ALLOC(ndr, ofs);
- ofs->offset = ndr->offset;
- ofs->next = ndr->ofs_list;
- ndr->ofs_list = ofs;
return NT_STATUS_OK;
}
*/
void ndr_push_struct_end(struct ndr_push *ndr)
{
- ndr->ofs_list = ndr->ofs_list->next;
}
-
/*
- pull a relative structure
+ store a token in the ndr context, for later retrieval
*/
-NTSTATUS ndr_pull_relative(struct ndr_pull *ndr, const void **buf, size_t size,
- NTSTATUS (*fn)(struct ndr_pull *, int ndr_flags, void *))
+static NTSTATUS ndr_token_store(TALLOC_CTX *mem_ctx,
+ struct ndr_token_list **list,
+ const void *key,
+ uint32_t value)
{
- struct ndr_pull ndr2;
- uint32 ofs;
- struct ndr_pull_save save;
- void *p;
-
- NDR_CHECK(ndr_pull_uint32(ndr, &ofs));
- if (ofs == 0) {
- (*buf) = NULL;
- return NT_STATUS_OK;
- }
- ndr_pull_save(ndr, &save);
- NDR_CHECK(ndr_pull_set_offset(ndr, ofs + ndr->ofs_list->offset));
- NDR_CHECK(ndr_pull_subcontext(ndr, &ndr2, ndr->data_size - ndr->offset));
- /* strings must be allocated by the backend functions */
- if (ndr->flags & LIBNDR_STRING_FLAGS) {
- NDR_CHECK(fn(&ndr2, NDR_SCALARS|NDR_BUFFERS, &p));
- } else {
- NDR_ALLOC_SIZE(ndr, p, size);
- NDR_CHECK(fn(&ndr2, NDR_SCALARS|NDR_BUFFERS, p));
+ struct ndr_token_list *tok;
+ tok = talloc_p(mem_ctx, struct ndr_token_list);
+ if (tok == NULL) {
+ return NT_STATUS_NO_MEMORY;
}
- (*buf) = p;
- ndr_pull_restore(ndr, &save);
+ tok->key = key;
+ tok->value = value;
+ DLIST_ADD((*list), tok);
return NT_STATUS_OK;
}
/*
- push a relative structure
+ retrieve a token from a ndr context
*/
-NTSTATUS ndr_push_relative(struct ndr_push *ndr, int ndr_flags, const void *p,
- NTSTATUS (*fn)(struct ndr_push *, int , const void *))
+static NTSTATUS ndr_token_retrieve(struct ndr_token_list **list, const void *key, uint32_t *v)
{
- struct ndr_ofs_list *ofs;
- if (ndr_flags & NDR_SCALARS) {
- if (!p) {
- NDR_CHECK(ndr_push_uint32(ndr, 0));
+ struct ndr_token_list *tok;
+ for (tok=*list;tok;tok=tok->next) {
+ if (tok->key == key) {
+ DLIST_REMOVE((*list), tok);
+ *v = tok->value;
return NT_STATUS_OK;
}
- NDR_PUSH_ALLOC(ndr, ofs);
- NDR_CHECK(ndr_push_align(ndr, 4));
- ofs->offset = ndr->offset;
- NDR_CHECK(ndr_push_uint32(ndr, 0xFFFFFFFF));
- ofs->next = NULL;
- if (ndr->relative_list_end) {
- ndr->relative_list_end->next = ofs;
- } else {
- ndr->relative_list = ofs;
- }
- ndr->relative_list_end = ofs;
}
- if (ndr_flags & NDR_BUFFERS) {
- struct ndr_push_save save;
- if (!p) {
- return NT_STATUS_OK;
- }
- ofs = ndr->relative_list;
- if (!ofs) {
- return ndr_push_error(ndr, NDR_ERR_RELATIVE, "Empty relative stack");
- }
- ndr->relative_list = ndr->relative_list->next;
- if (ndr->relative_list == NULL) {
- ndr->relative_list_end = NULL;
+ return ndr_map_error(NDR_ERR_TOKEN);
+}
+
+/*
+ peek at but don't removed a token from a ndr context
+*/
+static uint32_t ndr_token_peek(struct ndr_token_list **list, const void *key)
+{
+ struct ndr_token_list *tok;
+ for (tok=*list;tok;tok=tok->next) {
+ if (tok->key == key) {
+ return tok->value;
}
- NDR_CHECK(ndr_push_align(ndr, 8));
- ndr_push_save(ndr, &save);
- ndr->offset = ofs->offset;
- NDR_CHECK(ndr_push_uint32(ndr, save.offset - ndr->ofs_list->offset));
- ndr_push_restore(ndr, &save);
- NDR_CHECK(fn(ndr, NDR_SCALARS|NDR_BUFFERS, p));
}
+ return 0;
+}
+
+/*
+ pull an array size field and add it to the array_size_list token list
+*/
+NTSTATUS ndr_pull_array_size(struct ndr_pull *ndr, const void *p)
+{
+ uint32_t size;
+ NDR_CHECK(ndr_pull_uint32(ndr, &size));
+ return ndr_token_store(ndr, &ndr->array_size_list, p, size);
+}
+
+/*
+ get the stored array size field
+*/
+uint32_t ndr_get_array_size(struct ndr_pull *ndr, const void *p)
+{
+ return ndr_token_peek(&ndr->array_size_list, p);
+}
+
+/*
+ check the stored array size field
+*/
+NTSTATUS ndr_check_array_size(struct ndr_pull *ndr, void *p, uint32_t size)
+{
+ uint32_t stored;
+ NDR_CHECK(ndr_token_retrieve(&ndr->array_size_list, p, &stored));
+ if (stored != size) {
+ return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE,
+ "Bad array size - got %u expected %u\n",
+ stored, size);
+ }
+ return NT_STATUS_OK;
+}
+
+/*
+ pull an array length field and add it to the array_length_list token list
+*/
+NTSTATUS ndr_pull_array_length(struct ndr_pull *ndr, const void *p)
+{
+ uint32_t length, offset;
+ NDR_CHECK(ndr_pull_uint32(ndr, &offset));
+ if (offset != 0) {
+ return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE,
+ "non-zero array offset %u\n", offset);
+ }
+ NDR_CHECK(ndr_pull_uint32(ndr, &length));
+ return ndr_token_store(ndr, &ndr->array_length_list, p, length);
+}
+
+/*
+ get the stored array length field
+*/
+uint32_t ndr_get_array_length(struct ndr_pull *ndr, const void *p)
+{
+ return ndr_token_peek(&ndr->array_length_list, p);
+}
+
+/*
+ check the stored array length field
+*/
+NTSTATUS ndr_check_array_length(struct ndr_pull *ndr, void *p, uint32_t length)
+{
+ uint32_t stored;
+ NDR_CHECK(ndr_token_retrieve(&ndr->array_length_list, p, &stored));
+ if (stored != length) {
+ return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE,
+ "Bad array length - got %u expected %u\n",
+ stored, length);
+ }
+ return NT_STATUS_OK;
+}
+
+/*
+ pull a relative object - stage1
+ called during SCALARS processing
+*/
+NTSTATUS ndr_pull_relative1(struct ndr_pull *ndr, const void *p, uint32_t rel_offset)
+{
+ if (ndr->flags & LIBNDR_FLAG_RELATIVE_CURRENT) {
+ return ndr_token_store(ndr, &ndr->relative_list, p,
+ rel_offset + ndr->offset - 4);
+ } else {
+ return ndr_token_store(ndr, &ndr->relative_list, p, rel_offset);
+ }
+}
+
+/*
+ pull a relative object - stage2
+ called during BUFFERS processing
+*/
+NTSTATUS ndr_pull_relative2(struct ndr_pull *ndr, const void *p)
+{
+ uint32_t rel_offset;
+ NDR_CHECK(ndr_token_retrieve(&ndr->relative_list, p, &rel_offset));
+ return ndr_pull_set_offset(ndr, rel_offset);
+}
+
+/*
+ push a relative object - stage1
+ this is called during SCALARS processing
+*/
+NTSTATUS ndr_push_relative1(struct ndr_push *ndr, const void *p)
+{
+ if (p == NULL) {
+ NDR_CHECK(ndr_push_uint32(ndr, 0));
+ return NT_STATUS_OK;
+ }
+ NDR_CHECK(ndr_push_align(ndr, 4));
+ NDR_CHECK(ndr_token_store(ndr, &ndr->relative_list, p, ndr->offset));
+ return ndr_push_uint32(ndr, 0xFFFFFFFF);
+}
+
+/*
+ push a relative object - stage2
+ this is called during buffers processing
+*/
+NTSTATUS ndr_push_relative2(struct ndr_push *ndr, const void *p)
+{
+ struct ndr_push_save save;
+ if (p == NULL) {
+ return NT_STATUS_OK;
+ }
+ NDR_CHECK(ndr_push_align(ndr, 4));
+ ndr_push_save(ndr, &save);
+ NDR_CHECK(ndr_token_retrieve(&ndr->relative_list, p, &ndr->offset));
+ if (ndr->flags & LIBNDR_FLAG_RELATIVE_CURRENT) {
+ NDR_CHECK(ndr_push_uint32(ndr, save.offset - ndr->offset));
+ } else {
+ NDR_CHECK(ndr_push_uint32(ndr, save.offset));
+ }
+ ndr_push_restore(ndr, &save);
return NT_STATUS_OK;
}
/*
pull a union from a blob using NDR
*/
-NTSTATUS ndr_pull_union_blob(DATA_BLOB *blob, TALLOC_CTX *mem_ctx, uint32 level, void *p,
- NTSTATUS (*fn)(struct ndr_pull *, int ndr_flags, uint32, void *))
+NTSTATUS ndr_pull_union_blob(DATA_BLOB *blob, TALLOC_CTX *mem_ctx, uint32_t level, void *p,
+ ndr_pull_union_fn_t fn)
{
struct ndr_pull *ndr;
ndr = ndr_pull_init_blob(blob, mem_ctx);
/*
pull a struct from a blob using NDR
*/
-NTSTATUS ndr_pull_struct_blob(DATA_BLOB *blob, TALLOC_CTX *mem_ctx, void *p,
- NTSTATUS (*fn)(struct ndr_pull *, int ndr_flags, void *))
+NTSTATUS ndr_pull_struct_blob(const DATA_BLOB *blob, TALLOC_CTX *mem_ctx, void *p,
+ ndr_pull_flags_fn_t fn)
{
struct ndr_pull *ndr;
ndr = ndr_pull_init_blob(blob, mem_ctx);
}
return fn(ndr, NDR_SCALARS|NDR_BUFFERS, p);
}
+
+/*
+ push a struct to a blob using NDR
+*/
+NTSTATUS ndr_push_struct_blob(DATA_BLOB *blob, TALLOC_CTX *mem_ctx, void *p,
+ ndr_push_flags_fn_t fn)
+{
+ NTSTATUS status;
+ struct ndr_push *ndr;
+ ndr = ndr_push_init_ctx(mem_ctx);
+ if (!ndr) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ status = fn(ndr, NDR_SCALARS|NDR_BUFFERS, p);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ *blob = ndr_push_blob(ndr);
+
+ return NT_STATUS_OK;
+}
+
+/*
+ generic ndr_size_*() handler for structures
+*/
+size_t ndr_size_struct(const void *p, int flags, ndr_push_flags_fn_t push)
+{
+ struct ndr_push *ndr;
+ NTSTATUS status;
+ size_t ret;
+
+ ndr = ndr_push_init_ctx(NULL);
+ if (!ndr) return 0;
+ ndr->flags |= flags;
+ status = push(ndr, NDR_SCALARS|NDR_BUFFERS, discard_const(p));
+ if (!NT_STATUS_IS_OK(status)) {
+ return 0;
+ }
+ ret = ndr->offset;
+ talloc_free(ndr);
+ return ret;
+}
git.samba.org / samba.git / blobdiff