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-rw-r--r--source3/smbd/trans2.c140
1 files changed, 104 insertions, 36 deletions
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index fb44e98fce..9991ff477e 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -228,14 +228,11 @@ static struct ea_list *get_ea_list(TALLOC_CTX *mem_ctx, connection_struct *conn,
that was filled.
****************************************************************************/
-static unsigned int fill_ea_buffer(char *pdata, unsigned int total_data_size,
- connection_struct *conn, files_struct *fsp, const char *fname)
+static unsigned int fill_ea_buffer(TALLOC_CTX *mem_ctx, char *pdata, unsigned int total_data_size,
+ connection_struct *conn, struct ea_list *ea_list)
{
unsigned int ret_data_size = 4;
char *p = pdata;
- size_t total_ea_len;
- TALLOC_CTX *mem_ctx;
- struct ea_list *ea_list;
SMB_ASSERT(total_data_size >= 4);
@@ -243,21 +240,6 @@ static unsigned int fill_ea_buffer(char *pdata, unsigned int total_data_size,
if (!lp_ea_support(SNUM(conn))) {
return 4;
}
- mem_ctx = talloc_init("fill_ea_buffer");
- if (!mem_ctx) {
- return 4;
- }
-
- ea_list = get_ea_list(mem_ctx, conn, fsp, fname, &total_ea_len);
- if (!ea_list) {
- talloc_destroy(mem_ctx);
- return 4;
- }
-
- if (total_ea_len > total_data_size) {
- talloc_destroy(mem_ctx);
- return 4;
- }
for (p = pdata + 4; ea_list; ea_list = ea_list->next) {
size_t dos_namelen;
@@ -286,9 +268,7 @@ static unsigned int fill_ea_buffer(char *pdata, unsigned int total_data_size,
}
ret_data_size = PTR_DIFF(p, pdata);
- DEBUG(10,("fill_ea_buffer: data_size = %u, total_ea_len = %u\n",
- ret_data_size, total_ea_len ));
- talloc_destroy(mem_ctx);
+ DEBUG(10,("fill_ea_buffer: data_size = %u\n", ret_data_size ));
SIVAL(pdata,0,ret_data_size);
return ret_data_size;
}
@@ -428,6 +408,38 @@ static NTSTATUS set_ea(connection_struct *conn, files_struct *fsp, const char *f
}
/****************************************************************************
+ Read a list of EA's from an incoming data buffer. Create an ea_list with them.
+****************************************************************************/
+
+static struct ea_list *read_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size)
+{
+ struct ea_list *ea_list_head = NULL;
+ size_t offset = 4;
+
+ while (offset + 2 < data_size) {
+ struct ea_list *tmp;
+ struct ea_list *eal = TALLOC_ZERO_P(ctx, struct ea_list);
+ unsigned int namelen = CVAL(pdata,offset);
+
+ offset++; /* Go past the namelen byte. */
+ if (offset + namelen >= data_size) {
+ break;
+ }
+ eal->ea.name = TALLOC_ARRAY(ctx, char, namelen + 1);
+ if (!eal->ea.name) {
+ break;
+ }
+ memcpy(eal->ea.name, pdata + offset, namelen);
+ eal->ea.name[namelen] = '\0';
+
+ offset += (namelen + 1); /* Go past the name + terminating zero. */
+ DLIST_ADD_END(ea_list_head, eal, tmp);
+ }
+
+ return ea_list_head;
+}
+
+/****************************************************************************
Send the required number of replies back.
We assume all fields other than the data fields are
set correctly for the type of call.
@@ -1039,6 +1051,15 @@ static BOOL get_lanman2_dir_entry(connection_struct *conn,
SCVAL(p,0,0); p += 1; /* Extra zero byte ? - why.. */
break;
+#if 0
+ case SMB_FIND_EA_LIST:
+ DEBUG(10,("get_lanman2_dir_entry: SMB_FIND_EA_SIZE\n"));
+ if(requires_resume_key) {
+ SIVAL(p,0,reskey);
+ p += 4;
+ }
+#endif
+
case SMB_FIND_FILE_BOTH_DIRECTORY_INFO:
DEBUG(10,("get_lanman2_dir_entry: SMB_FIND_FILE_BOTH_DIRECTORY_INFO\n"));
was_8_3 = mangle_is_8_3(fname, True);
@@ -2333,7 +2354,7 @@ static int call_trans2qfilepathinfo(connection_struct *conn, char *inbuf, char *
int mode=0;
SMB_OFF_T file_size=0;
SMB_BIG_UINT allocation_size=0;
- unsigned int data_size;
+ unsigned int data_size = 0;
unsigned int param_size = 2;
SMB_STRUCT_STAT sbuf;
pstring fname, dos_fname;
@@ -2346,6 +2367,8 @@ static int call_trans2qfilepathinfo(connection_struct *conn, char *inbuf, char *
int len;
time_t c_time;
files_struct *fsp = NULL;
+ TALLOC_CTX *ea_ctx = NULL;
+ struct ea_list *ea_list = NULL;
uint32 desired_access = 0x12019F; /* Default - GENERIC_EXECUTE mapping from Windows */
if (!params)
@@ -2471,22 +2494,46 @@ static int call_trans2qfilepathinfo(connection_struct *conn, char *inbuf, char *
file_size = 0;
}
+ /* Pull any EA list from the data portion. */
+ if (info_level == SMB_INFO_QUERY_EAS_FROM_LIST) {
+ uint32 ea_size = IVAL(pdata,0);
+
+ if (total_data > 0 && ea_size != total_data) {
+ DEBUG(4,("call_trans2qfilepathinfo: Rejecting EA request with incorrect \
+total_data=%u (should be %u)\n", (unsigned int)total_data, (unsigned int)IVAL(pdata,0) ));
+ return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ }
+
+ if (!lp_ea_support(SNUM(conn))) {
+ return ERROR_DOS(ERRDOS,ERReasnotsupported);
+ }
+
+ if ((ea_ctx = talloc_init("ea_list")) == NULL) {
+ return ERROR_NT(NT_STATUS_NO_MEMORY);
+ }
+
+ /* Pull out the list of names. */
+ ea_list = read_ea_list(ea_ctx, pdata, ea_size);
+ if (!ea_list) {
+ talloc_destroy(ea_ctx);
+ return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ }
+ }
+
params = SMB_REALLOC(*pparams,2);
- if (params == NULL)
- return ERROR_DOS(ERRDOS,ERRnomem);
+ if (params == NULL) {
+ talloc_destroy(ea_ctx);
+ return ERROR_NT(NT_STATUS_NO_MEMORY);
+ }
*pparams = params;
memset((char *)params,'\0',2);
data_size = max_data_bytes + DIR_ENTRY_SAFETY_MARGIN;
pdata = SMB_REALLOC(*ppdata, data_size);
- if ( pdata == NULL )
- return ERROR_DOS(ERRDOS,ERRnomem);
- *ppdata = pdata;
-
- if (total_data > 0 && IVAL(pdata,0) == total_data) {
- /* uggh, EAs for OS2 */
- DEBUG(4,("Rejecting EA request with total_data=%d\n",total_data));
- return ERROR_DOS(ERRDOS,ERReasnotsupported);
+ if ( pdata == NULL ) {
+ talloc_destroy(ea_ctx);
+ return ERROR_NT(NT_STATUS_NO_MEMORY);
}
+ *ppdata = pdata;
memset((char *)pdata,'\0',data_size);
@@ -2560,6 +2607,7 @@ static int call_trans2qfilepathinfo(connection_struct *conn, char *inbuf, char *
break;
case SMB_INFO_QUERY_EAS_FROM_LIST:
+ {
DEBUG(10,("call_trans2qfilepathinfo: SMB_INFO_QUERY_EAS_FROM_LIST\n"));
data_size = 24;
put_dos_date2(pdata,0,c_time);
@@ -2568,13 +2616,33 @@ static int call_trans2qfilepathinfo(connection_struct *conn, char *inbuf, char *
SIVAL(pdata,12,(uint32)file_size);
SIVAL(pdata,16,(uint32)allocation_size);
SIVAL(pdata,20,mode);
+ talloc_destroy(ea_ctx);
break;
+ }
case SMB_INFO_QUERY_ALL_EAS:
- DEBUG(10,("call_trans2qfilepathinfo: SMB_INFO_QUERY_ALL_EAS\n"));
+ {
/* We have data_size bytes to put EA's into. */
- data_size = fill_ea_buffer(pdata, data_size, conn, fsp, fname);
+ size_t total_ea_len = 0;
+
+ DEBUG(10,("call_trans2qfilepathinfo: SMB_INFO_QUERY_ALL_EAS\n"));
+
+ ea_ctx = talloc_init("ea_ctx");
+ if (!ea_ctx) {
+ return ERROR_NT(NT_STATUS_NO_MEMORY);
+ }
+
+ ea_list = get_ea_list(ea_ctx, conn, fsp, fname, &total_ea_len);
+ if (!ea_list || (total_ea_len > data_size)) {
+ talloc_destroy(ea_ctx);
+ data_size = 4;
+ break;
+ }
+
+ data_size = fill_ea_buffer(ea_ctx, pdata, data_size, conn, ea_list);
+ talloc_destroy(ea_ctx);
break;
+ }
case SMB_FILE_BASIC_INFORMATION:
case SMB_QUERY_FILE_BASIC_INFO:
generated by cgit (git 2.34.1) at 2024-11-01 18:54:27 +0000