#include "ctdbd_conn.h"
#include "../lib/util/util_pw.h"
#include "messages.h"
+#include <ccan/hash/hash.h>
+#include "libcli/security/security.h"
+
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
/* Max allowable allococation - 256mb - 0x10000000 */
#define MAX_ALLOC_SIZE (1024*1024*256)
static enum remote_arch_types ra_type = RA_UNKNOWN;
-/***********************************************************************
- Definitions for all names.
-***********************************************************************/
-
-static char *smb_scope;
-static int smb_num_netbios_names;
-static char **smb_my_netbios_names;
-
-/***********************************************************************
- Allocate and set scope. Ensure upper case.
-***********************************************************************/
-
-bool set_global_scope(const char *scope)
-{
- SAFE_FREE(smb_scope);
- smb_scope = SMB_STRDUP(scope);
- if (!smb_scope)
- return False;
- strupper_m(smb_scope);
- return True;
-}
-
-/*********************************************************************
- Ensure scope is never null string.
-*********************************************************************/
-
-const char *global_scope(void)
-{
- if (!smb_scope)
- set_global_scope("");
- return smb_scope;
-}
-
-static void free_netbios_names_array(void)
-{
- int i;
-
- for (i = 0; i < smb_num_netbios_names; i++)
- SAFE_FREE(smb_my_netbios_names[i]);
-
- SAFE_FREE(smb_my_netbios_names);
- smb_num_netbios_names = 0;
-}
-
-static bool allocate_my_netbios_names_array(size_t number)
-{
- free_netbios_names_array();
-
- smb_num_netbios_names = number + 1;
- smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
-
- if (!smb_my_netbios_names)
- return False;
-
- memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
- return True;
-}
-
-static bool set_my_netbios_names(const char *name, int i)
-{
- SAFE_FREE(smb_my_netbios_names[i]);
-
- smb_my_netbios_names[i] = SMB_STRDUP(name);
- if (!smb_my_netbios_names[i])
- return False;
- strupper_m(smb_my_netbios_names[i]);
- return True;
-}
-
-/***********************************************************************
- Free memory allocated to global objects
-***********************************************************************/
-
-void gfree_names(void)
-{
- gfree_netbios_names();
- SAFE_FREE( smb_scope );
- free_netbios_names_array();
- free_local_machine_name();
-}
-
void gfree_all( void )
{
gfree_names();
gfree_debugsyms();
}
-const char *my_netbios_names(int i)
-{
- return smb_my_netbios_names[i];
-}
-
-bool set_netbios_aliases(const char **str_array)
-{
- size_t namecount;
-
- /* Work out the max number of netbios aliases that we have */
- for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
- ;
-
- if ( global_myname() && *global_myname())
- namecount++;
-
- /* Allocate space for the netbios aliases */
- if (!allocate_my_netbios_names_array(namecount))
- return False;
-
- /* Use the global_myname string first */
- namecount=0;
- if ( global_myname() && *global_myname()) {
- set_my_netbios_names( global_myname(), namecount );
- namecount++;
- }
-
- if (str_array) {
- size_t i;
- for ( i = 0; str_array[i] != NULL; i++) {
- size_t n;
- bool duplicate = False;
-
- /* Look for duplicates */
- for( n=0; n<namecount; n++ ) {
- if( strequal( str_array[i], my_netbios_names(n) ) ) {
- duplicate = True;
- break;
- }
- }
- if (!duplicate) {
- if (!set_my_netbios_names(str_array[i], namecount))
- return False;
- namecount++;
- }
- }
- }
- return True;
-}
-
-/****************************************************************************
- Common name initialization code.
-****************************************************************************/
-
-bool init_names(void)
-{
- int n;
-
- if (global_myname() == NULL || *global_myname() == '\0') {
- if (!set_global_myname(myhostname())) {
- DEBUG( 0, ( "init_names: malloc fail.\n" ) );
- return False;
- }
- }
-
- if (!set_netbios_aliases(lp_netbios_aliases())) {
- DEBUG( 0, ( "init_names: malloc fail.\n" ) );
- return False;
- }
-
- set_local_machine_name(global_myname(),false);
-
- DEBUG( 5, ("Netbios name list:-\n") );
- for( n=0; my_netbios_names(n); n++ ) {
- DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
- n, my_netbios_names(n) ) );
- }
-
- return( True );
-}
-
/*******************************************************************
Check if a file exists - call vfs_file_exist for samba files.
********************************************************************/
size_t newlen = smb_len(*outbuf) + 4 + blob.length;
uint8 *tmp;
- if (!(tmp = TALLOC_REALLOC_ARRAY(NULL, *outbuf, uint8, newlen))) {
+ if (!(tmp = talloc_realloc(NULL, *outbuf, uint8, newlen))) {
DEBUG(0, ("talloc failed\n"));
return -1;
}
set_need_random_reseed();
/* tdb needs special fork handling */
- if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) {
+ if (tdb_reopen_all(parent_longlived ? 1 : 0) != 0) {
DEBUG(0,("tdb_reopen_all failed.\n"));
status = NT_STATUS_OPEN_FAILED;
goto done;
return status;
}
-#if defined(PARANOID_MALLOC_CHECKER)
-
-/****************************************************************************
- Internal malloc wrapper. Externally visible.
-****************************************************************************/
-
-void *malloc_(size_t size)
-{
- if (size == 0) {
- return NULL;
- }
-#undef malloc
- return malloc(size);
-#define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
-}
-
-/****************************************************************************
- Internal calloc wrapper. Not externally visible.
-****************************************************************************/
-
-static void *calloc_(size_t count, size_t size)
-{
- if (size == 0 || count == 0) {
- return NULL;
- }
-#undef calloc
- return calloc(count, size);
-#define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
-}
-
-/****************************************************************************
- Internal realloc wrapper. Not externally visible.
-****************************************************************************/
-
-static void *realloc_(void *ptr, size_t size)
-{
-#undef realloc
- return realloc(ptr, size);
-#define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
-}
-
-#endif /* PARANOID_MALLOC_CHECKER */
-
-/****************************************************************************
- Type-safe memalign
-****************************************************************************/
-
-void *memalign_array(size_t el_size, size_t align, unsigned int count)
-{
- if (count >= MAX_ALLOC_SIZE/el_size) {
- return NULL;
- }
-
- return sys_memalign(align, el_size*count);
-}
-
-/****************************************************************************
- Type-safe calloc.
-****************************************************************************/
-
-void *calloc_array(size_t size, size_t nmemb)
-{
- if (nmemb >= MAX_ALLOC_SIZE/size) {
- return NULL;
- }
- if (size == 0 || nmemb == 0) {
- return NULL;
- }
-#if defined(PARANOID_MALLOC_CHECKER)
- return calloc_(nmemb, size);
-#else
- return calloc(nmemb, size);
-#endif
-}
-
-/****************************************************************************
- Expand a pointer to be a particular size.
- Note that this version of Realloc has an extra parameter that decides
- whether to free the passed in storage on allocation failure or if the
- new size is zero.
-
- This is designed for use in the typical idiom of :
-
- p = SMB_REALLOC(p, size)
- if (!p) {
- return error;
- }
-
- and not to have to keep track of the old 'p' contents to free later, nor
- to worry if the size parameter was zero. In the case where NULL is returned
- we guarentee that p has been freed.
-
- If free later semantics are desired, then pass 'free_old_on_error' as False which
- guarentees that the old contents are not freed on error, even if size == 0. To use
- this idiom use :
-
- tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
- if (!tmp) {
- SAFE_FREE(p);
- return error;
- } else {
- p = tmp;
- }
-
- Changes were instigated by Coverity error checking. JRA.
-****************************************************************************/
-
-void *Realloc(void *p, size_t size, bool free_old_on_error)
-{
- void *ret=NULL;
-
- if (size == 0) {
- if (free_old_on_error) {
- SAFE_FREE(p);
- }
- DEBUG(2,("Realloc asked for 0 bytes\n"));
- return NULL;
- }
-
-#if defined(PARANOID_MALLOC_CHECKER)
- if (!p) {
- ret = (void *)malloc_(size);
- } else {
- ret = (void *)realloc_(p,size);
- }
-#else
- if (!p) {
- ret = (void *)malloc(size);
- } else {
- ret = (void *)realloc(p,size);
- }
-#endif
-
- if (!ret) {
- if (free_old_on_error && p) {
- SAFE_FREE(p);
- }
- DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
- }
-
- return(ret);
-}
-
/****************************************************************************
(Hopefully) efficient array append.
****************************************************************************/
(unsigned long long)sys_getpid(), why));
log_stack_trace();
+#if defined(HAVE_PRCTL) && defined(PR_SET_PTRACER)
+ /*
+ * Make sure all children can attach a debugger.
+ */
+ prctl(PR_SET_PTRACER, getpid(), 0, 0, 0);
+#endif
+
cmd = lp_panic_action();
if (cmd && *cmd) {
DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
return;
}
-/****************************************************************************
- Routine to free a namearray.
-****************************************************************************/
-
-void free_namearray(name_compare_entry *name_array)
-{
- int i;
-
- if(name_array == NULL)
- return;
-
- for(i=0; name_array[i].name!=NULL; i++)
- SAFE_FREE(name_array[i].name);
- SAFE_FREE(name_array);
-}
-
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_LOCKING
int str_checksum(const char *s)
{
- TDB_DATA key = string_tdb_data(s);
- return tdb_jenkins_hash(&key);
+ if (s == NULL)
+ return 0;
+ return hash(s, strlen(s), 0);
}
/*****************************************************************
return ret;
}
+/*****************************************************************
+ Get local hostname and cache result.
+*****************************************************************/
+
+char *myhostname_upper(void)
+{
+ char *name;
+ static char *ret;
+ if (ret == NULL) {
+ name = get_myname(talloc_tos());
+ ret = strupper_talloc(NULL, name);
+ talloc_free(name);
+ }
+ return ret;
+}
+
/**
* @brief Returns an absolute path to a file concatenating the provided
* @a rootpath and @a basename
return xx_path(name, lp_piddir());
}
-/**
- * @brief Returns an absolute path to a file in the Samba lib directory.
- *
- * @param name File to find, relative to LIBDIR.
- *
- * @retval Pointer to a string containing the full path.
- **/
-
-char *lib_path(const char *name)
-{
- return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name);
-}
-
-/**
- * @brief Returns an absolute path to a file in the Samba modules directory.
- *
- * @param name File to find, relative to MODULESDIR.
- *
- * @retval Pointer to a string containing the full path.
- **/
-
-char *modules_path(const char *name)
-{
- return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name);
-}
-
-/**
- * @brief Returns an absolute path to a file in the Samba data directory.
- *
- * @param name File to find, relative to CODEPAGEDIR.
- *
- * @retval Pointer to a talloc'ed string containing the full path.
- **/
-
-char *data_path(const char *name)
-{
- return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name);
-}
-
/**
* @brief Returns an absolute path to a file in the Samba state directory.
*
return xx_path(name, lp_cachedir());
}
-/**
- * @brief Returns the platform specific shared library extension.
- *
- * @retval Pointer to a const char * containing the extension.
- **/
-
-const char *shlib_ext(void)
-{
- return get_dyn_SHLIBEXT();
-}
-
/*******************************************************************
Given a filename - get its directory name
********************************************************************/
len = p-dir;
- if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) {
+ if (!(*parent = (char *)talloc_memdup(mem_ctx, dir, len+1))) {
return False;
}
(*parent)[len] = '\0';
{
struct server_id result;
result.pid = pid;
+ result.task_id = 0;
result.unique_id = my_unique_id;
result.vnn = my_vnn;
return result;
{
if (p1->pid != p2->pid)
return False;
+ if (p1->task_id != p2->task_id)
+ return False;
if (p1->vnn != p2->vnn)
return False;
return True;
{
if (pid->pid != sys_getpid())
return False;
+ if (pid->task_id != 0)
+ return False;
if (pid->vnn != my_vnn)
return False;
return True;
struct server_id interpret_pid(const char *pid_string)
{
struct server_id result;
- int pid;
- unsigned int vnn;
- if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) {
+ unsigned long long pid;
+ unsigned int vnn, task_id = 0;
+
+ ZERO_STRUCT(result);
+
+ /* We accept various forms with 1, 2 or 3 component forms
+ * because the server_id_str() can print different forms, and
+ * we want backwards compatibility for scripts that may call
+ * smbclient. */
+ if (sscanf(pid_string, "%u:%llu.%u", &vnn, &pid, &task_id) == 3) {
result.vnn = vnn;
result.pid = pid;
- }
- else if (sscanf(pid_string, "%d", &pid) == 1) {
+ result.task_id = task_id;
+ } else if (sscanf(pid_string, "%u:%llu", &vnn, &pid) == 2) {
+ result.vnn = vnn;
+ result.pid = pid;
+ result.task_id = 0;
+ } else if (sscanf(pid_string, "%llu.%u", &pid, &task_id) == 2) {
result.vnn = get_my_vnn();
result.pid = pid;
- }
- else {
+ result.task_id = task_id;
+ } else if (sscanf(pid_string, "%llu", &pid) == 1) {
+ result.vnn = get_my_vnn();
+ result.pid = pid;
+ } else {
result.vnn = NONCLUSTER_VNN;
- result.pid = -1;
+ result.pid = (uint64_t)-1;
}
- /* Assigning to result.pid may have overflowed
- Map negative pid to -1: i.e. error */
- if (result.pid < 0) {
- result.pid = -1;
- }
- result.unique_id = 0;
return result;
}
-char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid)
-{
- if (pid->vnn == NONCLUSTER_VNN) {
- return talloc_asprintf(mem_ctx,
- "%d",
- (int)pid->pid);
- }
- else {
- return talloc_asprintf(mem_ctx,
- "%u:%d",
- (unsigned)pid->vnn,
- (int)pid->pid);
- }
-}
-
char *procid_str_static(const struct server_id *pid)
{
- return procid_str(talloc_tos(), pid);
+ return server_id_str(talloc_tos(), pid);
}
bool procid_valid(const struct server_id *pid)
{
- return (pid->pid != -1);
+ return (pid->pid != (uint64_t)-1);
}
bool procid_is_local(const struct server_id *pid)
}
}
-#if 0
-
-Disable these now we have checked all code paths and ensured
-NULL returns on zero request. JRA.
-
-/****************************************************************
- talloc wrapper functions that guarentee a null pointer return
- if size == 0.
-****************************************************************/
-
-#ifndef MAX_TALLOC_SIZE
-#define MAX_TALLOC_SIZE 0x10000000
-#endif
-
-/*
- * talloc and zero memory.
- * - returns NULL if size is zero.
- */
-
-void *_talloc_zero_zeronull(const void *ctx, size_t size, const char *name)
-{
- void *p;
-
- if (size == 0) {
- return NULL;
- }
-
- p = talloc_named_const(ctx, size, name);
-
- if (p) {
- memset(p, '\0', size);
- }
-
- return p;
-}
-
-/*
- * memdup with a talloc.
- * - returns NULL if size is zero.
- */
-
-void *_talloc_memdup_zeronull(const void *t, const void *p, size_t size, const char *name)
-{
- void *newp;
-
- if (size == 0) {
- return NULL;
- }
-
- newp = talloc_named_const(t, size, name);
- if (newp) {
- memcpy(newp, p, size);
- }
-
- return newp;
-}
-
-/*
- * alloc an array, checking for integer overflow in the array size.
- * - returns NULL if count or el_size are zero.
- */
-
-void *_talloc_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
-{
- if (count >= MAX_TALLOC_SIZE/el_size) {
- return NULL;
- }
-
- if (el_size == 0 || count == 0) {
- return NULL;
- }
-
- return talloc_named_const(ctx, el_size * count, name);
-}
-
-/*
- * alloc an zero array, checking for integer overflow in the array size
- * - returns NULL if count or el_size are zero.
- */
-
-void *_talloc_zero_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
-{
- if (count >= MAX_TALLOC_SIZE/el_size) {
- return NULL;
- }
-
- if (el_size == 0 || count == 0) {
- return NULL;
- }
-
- return _talloc_zero(ctx, el_size * count, name);
-}
-
-/*
- * Talloc wrapper that returns NULL if size == 0.
- */
-void *talloc_zeronull(const void *context, size_t size, const char *name)
-{
- if (size == 0) {
- return NULL;
- }
- return talloc_named_const(context, size, name);
-}
-#endif
-
/****************************************************************
strip off leading '\\' from a hostname
****************************************************************/
return ptr;
}
+
+/*******************************************************************
+ Return True if the filename is one of the special executable types.
+********************************************************************/
+
+bool is_executable(const char *fname)
+{
+ if ((fname = strrchr_m(fname,'.'))) {
+ if (strequal(fname,".com") ||
+ strequal(fname,".dll") ||
+ strequal(fname,".exe") ||
+ strequal(fname,".sym")) {
+ return True;
+ }
+ }
+ return False;
+}
+
+/****************************************************************************
+ Open a file with a share mode - old openX method - map into NTCreate.
+****************************************************************************/
+
+bool map_open_params_to_ntcreate(const char *smb_base_fname,
+ int deny_mode, int open_func,
+ uint32 *paccess_mask,
+ uint32 *pshare_mode,
+ uint32 *pcreate_disposition,
+ uint32 *pcreate_options,
+ uint32_t *pprivate_flags)
+{
+ uint32 access_mask;
+ uint32 share_mode;
+ uint32 create_disposition;
+ uint32 create_options = FILE_NON_DIRECTORY_FILE;
+ uint32_t private_flags = 0;
+
+ DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
+ "open_func = 0x%x\n",
+ smb_base_fname, (unsigned int)deny_mode,
+ (unsigned int)open_func ));
+
+ /* Create the NT compatible access_mask. */
+ switch (GET_OPENX_MODE(deny_mode)) {
+ case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
+ case DOS_OPEN_RDONLY:
+ access_mask = FILE_GENERIC_READ;
+ break;
+ case DOS_OPEN_WRONLY:
+ access_mask = FILE_GENERIC_WRITE;
+ break;
+ case DOS_OPEN_RDWR:
+ case DOS_OPEN_FCB:
+ access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
+ break;
+ default:
+ DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
+ (unsigned int)GET_OPENX_MODE(deny_mode)));
+ return False;
+ }
+
+ /* Create the NT compatible create_disposition. */
+ switch (open_func) {
+ case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_CREATE;
+ break;
+
+ case OPENX_FILE_EXISTS_OPEN:
+ create_disposition = FILE_OPEN;
+ break;
+
+ case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_OPEN_IF;
+ break;
+
+ case OPENX_FILE_EXISTS_TRUNCATE:
+ create_disposition = FILE_OVERWRITE;
+ break;
+
+ case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
+ create_disposition = FILE_OVERWRITE_IF;
+ break;
+
+ default:
+ /* From samba4 - to be confirmed. */
+ if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
+ create_disposition = FILE_CREATE;
+ break;
+ }
+ DEBUG(10,("map_open_params_to_ntcreate: bad "
+ "open_func 0x%x\n", (unsigned int)open_func));
+ return False;
+ }
+
+ /* Create the NT compatible share modes. */
+ switch (GET_DENY_MODE(deny_mode)) {
+ case DENY_ALL:
+ share_mode = FILE_SHARE_NONE;
+ break;
+
+ case DENY_WRITE:
+ share_mode = FILE_SHARE_READ;
+ break;
+
+ case DENY_READ:
+ share_mode = FILE_SHARE_WRITE;
+ break;
+
+ case DENY_NONE:
+ share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+ break;
+
+ case DENY_DOS:
+ private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_DOS;
+ if (is_executable(smb_base_fname)) {
+ share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
+ } else {
+ if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
+ share_mode = FILE_SHARE_READ;
+ } else {
+ share_mode = FILE_SHARE_NONE;
+ }
+ }
+ break;
+
+ case DENY_FCB:
+ private_flags |= NTCREATEX_OPTIONS_PRIVATE_DENY_FCB;
+ share_mode = FILE_SHARE_NONE;
+ break;
+
+ default:
+ DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
+ (unsigned int)GET_DENY_MODE(deny_mode) ));
+ return False;
+ }
+
+ DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
+ "share_mode = 0x%x, create_disposition = 0x%x, "
+ "create_options = 0x%x private_flags = 0x%x\n",
+ smb_base_fname,
+ (unsigned int)access_mask,
+ (unsigned int)share_mode,
+ (unsigned int)create_disposition,
+ (unsigned int)create_options,
+ (unsigned int)private_flags));
+
+ if (paccess_mask) {
+ *paccess_mask = access_mask;
+ }
+ if (pshare_mode) {
+ *pshare_mode = share_mode;
+ }
+ if (pcreate_disposition) {
+ *pcreate_disposition = create_disposition;
+ }
+ if (pcreate_options) {
+ *pcreate_options = create_options;
+ }
+ if (pprivate_flags) {
+ *pprivate_flags = private_flags;
+ }
+
+ return True;
+
+}
+
+
+void init_modules(void)
+{
+ /* FIXME: This can cause undefined symbol errors :
+ * smb_register_vfs() isn't available in nmbd, for example */
+ if(lp_preload_modules())
+ smb_load_modules(lp_preload_modules());
+}
git.samba.org / samba.git / blobdiff