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authorStefan Metzmacher <metze@samba.org>2006-03-18 10:38:38 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:58:41 -0500
commit75140d6150264ba50a47e104c3ce1ae40bd3f0c8 (patch)
tree1345a43aeaaa6847a765ab69cb484a4dd7403d10 /source4
parent9225c02aee19478fc4825c4b798a6757d140b5c0 (diff)
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r14540: fix a talloc hierachie problem,
make sure file and search handles are cleaned up before anything else in the pvfs_state struct, as there destructors reply on a valid pvfs_state struct metze (This used to be commit aaa5d377b9b6145a83c0e686c7fbb7b561ae8988)
Diffstat (limited to 'source4')
-rw-r--r--source4/ntvfs/posix/pvfs_flush.c2
-rw-r--r--source4/ntvfs/posix/pvfs_open.c62
-rw-r--r--source4/ntvfs/posix/pvfs_search.c39
-rw-r--r--source4/ntvfs/posix/vfs_posix.c34
-rw-r--r--source4/ntvfs/posix/vfs_posix.h44
5 files changed, 108 insertions, 73 deletions
diff --git a/source4/ntvfs/posix/pvfs_flush.c b/source4/ntvfs/posix/pvfs_flush.c
index ad87ed623b..d21f257201 100644
--- a/source4/ntvfs/posix/pvfs_flush.c
+++ b/source4/ntvfs/posix/pvfs_flush.c
@@ -60,7 +60,7 @@ NTSTATUS pvfs_flush(struct ntvfs_module_context *ntvfs,
}
/* they are asking to flush all open files */
- for (f=pvfs->open_files;f;f=f->next) {
+ for (f=pvfs->files.list;f;f=f->next) {
pvfs_flush_file(pvfs, f);
}
diff --git a/source4/ntvfs/posix/pvfs_open.c b/source4/ntvfs/posix/pvfs_open.c
index 3160519f73..2724339323 100644
--- a/source4/ntvfs/posix/pvfs_open.c
+++ b/source4/ntvfs/posix/pvfs_open.c
@@ -43,7 +43,7 @@ struct pvfs_file *pvfs_find_fd(struct pvfs_state *pvfs,
{
struct pvfs_file *f;
- f = idr_find(pvfs->idtree_fnum, fnum);
+ f = idr_find(pvfs->files.idtree, fnum);
if (f == NULL) {
return NULL;
}
@@ -114,8 +114,8 @@ static int pvfs_dir_handle_destructor(void *p)
static int pvfs_dir_fnum_destructor(void *p)
{
struct pvfs_file *f = p;
- DLIST_REMOVE(f->pvfs->open_files, f);
- idr_remove(f->pvfs->idtree_fnum, f->fnum);
+ DLIST_REMOVE(f->pvfs->files.list, f);
+ idr_remove(f->pvfs->files.idtree, f->fnum);
return 0;
}
@@ -246,7 +246,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
return NT_STATUS_NO_MEMORY;
}
- fnum = idr_get_new_above(pvfs->idtree_fnum, f, PVFS_MIN_DIR_FNUM, UINT16_MAX);
+ fnum = idr_get_new_above(pvfs->files.idtree, f, PVFS_MIN_DIR_FNUM, UINT16_MAX);
if (fnum == -1) {
return NT_STATUS_TOO_MANY_OPENED_FILES;
}
@@ -258,7 +258,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
status = pvfs_access_check_create(pvfs, req, name, &access_mask);
}
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return status;
}
@@ -295,7 +295,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
/* form the lock context used for opendb locking */
status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, f->fnum);
+ idr_remove(pvfs->files.idtree, f->fnum);
return status;
}
@@ -306,7 +306,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
name->full_name));
/* we were supposed to do a blocking lock, so something
is badly wrong! */
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
@@ -315,7 +315,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
share_access, access_mask, del_on_close, name->full_name);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, f->fnum);
+ idr_remove(pvfs->files.idtree, f->fnum);
talloc_free(lck);
return status;
}
@@ -323,7 +323,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
f->handle->have_opendb_entry = True;
}
- DLIST_ADD(pvfs->open_files, f);
+ DLIST_ADD(pvfs->files.list, f);
/* setup destructors to avoid leaks on abnormal termination */
talloc_set_destructor(f->handle, pvfs_dir_handle_destructor);
@@ -334,7 +334,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
mode_t mode = pvfs_fileperms(pvfs, attrib);
if (mkdir(name->full_name, mode) == -1) {
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return pvfs_map_errno(pvfs,errno);
}
@@ -353,7 +353,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
/* form the lock context used for opendb locking */
status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, f->fnum);
+ idr_remove(pvfs->files.idtree, f->fnum);
return status;
}
@@ -363,7 +363,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
name->full_name));
/* we were supposed to do a blocking lock, so something
is badly wrong! */
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
@@ -382,7 +382,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
}
if (!name->exists) {
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
@@ -406,7 +406,7 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
return NT_STATUS_OK;
cleanup_delete:
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
rmdir(name->full_name);
return status;
}
@@ -493,9 +493,9 @@ static int pvfs_fnum_destructor(void *p)
{
struct pvfs_file *f = p;
- DLIST_REMOVE(f->pvfs->open_files, f);
+ DLIST_REMOVE(f->pvfs->files.list, f);
pvfs_lock_close(f->pvfs, f);
- idr_remove(f->pvfs->idtree_fnum, f->fnum);
+ idr_remove(f->pvfs->files.idtree, f->fnum);
return 0;
}
@@ -591,7 +591,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
return NT_STATUS_NO_MEMORY;
}
- fnum = idr_get_new_above(pvfs->idtree_fnum, f, PVFS_MIN_NEW_FNUM, UINT16_MAX);
+ fnum = idr_get_new_above(pvfs->files.idtree, f, PVFS_MIN_NEW_FNUM, UINT16_MAX);
if (fnum == -1) {
return NT_STATUS_TOO_MANY_OPENED_FILES;
}
@@ -602,7 +602,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
/* create the file */
fd = open(name->full_name, flags | O_CREAT | O_EXCL, mode);
if (fd == -1) {
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return pvfs_map_errno(pvfs, errno);
}
@@ -612,7 +612,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
if (name->stream_name) {
status = pvfs_stream_create(pvfs, name, fd);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
close(fd);
return status;
}
@@ -621,7 +621,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
/* re-resolve the open fd */
status = pvfs_resolve_name_fd(pvfs, fd, name);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
close(fd);
return status;
}
@@ -674,7 +674,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
/* bad news, we must have hit a race - we don't delete the file
here as the most likely scenario is that someone else created
the file at the same time */
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
close(fd);
return status;
}
@@ -699,7 +699,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
f->handle->have_opendb_entry = True;
f->handle->sticky_write_time = False;
- DLIST_ADD(pvfs->open_files, f);
+ DLIST_ADD(pvfs->files.list, f);
/* setup a destructor to avoid file descriptor leaks on
abnormal termination */
@@ -731,7 +731,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
return NT_STATUS_OK;
cleanup_delete:
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
close(fd);
unlink(name->full_name);
return status;
@@ -845,7 +845,7 @@ static NTSTATUS pvfs_open_deny_dos(struct ntvfs_module_context *ntvfs,
circumstances you actually get the _same_ handle back
twice, rather than a new handle.
*/
- for (f2=pvfs->open_files;f2;f2=f2->next) {
+ for (f2=pvfs->files.list;f2;f2=f2->next) {
if (f2 != f &&
f2->session_info == req->session_info &&
f2->smbpid == req->smbpid &&
@@ -1099,7 +1099,7 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
}
/* allocate a fnum */
- fnum = idr_get_new_above(pvfs->idtree_fnum, f, PVFS_MIN_FILE_FNUM, UINT16_MAX);
+ fnum = idr_get_new_above(pvfs->files.idtree, f, PVFS_MIN_FILE_FNUM, UINT16_MAX);
if (fnum == -1) {
return NT_STATUS_TOO_MANY_OPENED_FILES;
}
@@ -1128,13 +1128,13 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
opendb locking */
status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, f->fnum);
+ idr_remove(pvfs->files.idtree, f->fnum);
return status;
}
status = pvfs_brl_locking_key(name, f->handle, &f->handle->brl_locking_key);
if (!NT_STATUS_IS_OK(status)) {
- idr_remove(pvfs->idtree_fnum, f->fnum);
+ idr_remove(pvfs->files.idtree, f->fnum);
return status;
}
@@ -1145,11 +1145,11 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
name->full_name));
/* we were supposed to do a blocking lock, so something
is badly wrong! */
- idr_remove(pvfs->idtree_fnum, fnum);
+ idr_remove(pvfs->files.idtree, fnum);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
- DLIST_ADD(pvfs->open_files, f);
+ DLIST_ADD(pvfs->files.list, f);
/* setup a destructor to avoid file descriptor leaks on
abnormal termination */
@@ -1308,7 +1308,7 @@ NTSTATUS pvfs_logoff(struct ntvfs_module_context *ntvfs,
struct pvfs_state *pvfs = ntvfs->private_data;
struct pvfs_file *f, *next;
- for (f=pvfs->open_files;f;f=next) {
+ for (f=pvfs->files.list;f;f=next) {
next = f->next;
if (f->session_info == req->session_info) {
talloc_free(f);
@@ -1328,7 +1328,7 @@ NTSTATUS pvfs_exit(struct ntvfs_module_context *ntvfs,
struct pvfs_state *pvfs = ntvfs->private_data;
struct pvfs_file *f, *next;
- for (f=pvfs->open_files;f;f=next) {
+ for (f=pvfs->files.list;f;f=next) {
next = f->next;
if (f->session_info == req->session_info &&
f->smbpid == req->smbpid) {
diff --git a/source4/ntvfs/posix/pvfs_search.c b/source4/ntvfs/posix/pvfs_search.c
index 7ee64887fb..32bef1ae53 100644
--- a/source4/ntvfs/posix/pvfs_search.c
+++ b/source4/ntvfs/posix/pvfs_search.c
@@ -26,22 +26,7 @@
#include "librpc/gen_ndr/security.h"
#include "smbd/service_stream.h"
#include "lib/events/events.h"
-
-
-/* the state of a search started with pvfs_search_first() */
-struct pvfs_search_state {
- struct pvfs_state *pvfs;
- uint16_t handle;
- uint_t current_index;
- uint16_t search_attrib;
- uint16_t must_attrib;
- struct pvfs_dir *dir;
- time_t last_used;
- uint_t num_ea_names;
- struct ea_name *ea_names;
- struct timed_event *te;
-};
-
+#include "dlinklist.h"
/* place a reasonable limit on old-style searches as clients tend to
not send search close requests */
@@ -53,7 +38,8 @@ struct pvfs_search_state {
static int pvfs_search_destructor(void *ptr)
{
struct pvfs_search_state *search = ptr;
- idr_remove(search->pvfs->idtree_search, search->handle);
+ DLIST_REMOVE(search->pvfs->search.list, search);
+ idr_remove(search->pvfs->search.idtree, search->handle);
return 0;
}
@@ -75,7 +61,7 @@ static void pvfs_search_setup_timer(struct pvfs_search_state *search)
struct event_context *ev = search->pvfs->ntvfs->ctx->event_ctx;
talloc_free(search->te);
search->te = event_add_timed(ev, search,
- timeval_current_ofs(search->pvfs->search_inactivity_time, 0),
+ timeval_current_ofs(search->pvfs->search.inactivity_time, 0),
pvfs_search_timer, search);
}
@@ -306,7 +292,7 @@ static void pvfs_search_cleanup(struct pvfs_state *pvfs)
time_t t = time(NULL);
for (i=0;i<MAX_OLD_SEARCHES;i++) {
- struct pvfs_search_state *search = idr_find(pvfs->idtree_search, i);
+ struct pvfs_search_state *search = idr_find(pvfs->search.idtree, i);
if (search == NULL) return;
if (pvfs_list_eos(search->dir, search->current_index) &&
search->last_used != 0 &&
@@ -371,10 +357,10 @@ static NTSTATUS pvfs_search_first_old(struct ntvfs_module_context *ntvfs,
/* we need to give a handle back to the client so it
can continue a search */
- id = idr_get_new(pvfs->idtree_search, search, MAX_OLD_SEARCHES);
+ id = idr_get_new(pvfs->search.idtree, search, MAX_OLD_SEARCHES);
if (id == -1) {
pvfs_search_cleanup(pvfs);
- id = idr_get_new(pvfs->idtree_search, search, MAX_OLD_SEARCHES);
+ id = idr_get_new(pvfs->search.idtree, search, MAX_OLD_SEARCHES);
}
if (id == -1) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
@@ -389,6 +375,8 @@ static NTSTATUS pvfs_search_first_old(struct ntvfs_module_context *ntvfs,
search->last_used = time(NULL);
search->te = NULL;
+ DLIST_ADD(pvfs->search.list, search);
+
talloc_set_destructor(search, pvfs_search_destructor);
status = pvfs_search_fill(pvfs, req, io->search_first.in.max_count, search, io->generic.level,
@@ -425,7 +413,7 @@ static NTSTATUS pvfs_search_next_old(struct ntvfs_module_context *ntvfs,
handle = io->search_next.in.id.handle | (io->search_next.in.id.reserved<<8);
max_count = io->search_next.in.max_count;
- search = idr_find(pvfs->idtree_search, handle);
+ search = idr_find(pvfs->search.idtree, handle);
if (search == NULL) {
/* we didn't find the search handle */
return NT_STATUS_INVALID_HANDLE;
@@ -506,7 +494,7 @@ NTSTATUS pvfs_search_first(struct ntvfs_module_context *ntvfs,
return status;
}
- id = idr_get_new(pvfs->idtree_search, search, UINT16_MAX);
+ id = idr_get_new(pvfs->search.idtree, search, UINT16_MAX);
if (id == -1) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
@@ -522,6 +510,7 @@ NTSTATUS pvfs_search_first(struct ntvfs_module_context *ntvfs,
search->ea_names = io->t2ffirst.in.ea_names;
search->te = NULL;
+ DLIST_ADD(pvfs->search.list, search);
talloc_set_destructor(search, pvfs_search_destructor);
status = pvfs_search_fill(pvfs, req, max_count, search, io->generic.level,
@@ -571,7 +560,7 @@ NTSTATUS pvfs_search_next(struct ntvfs_module_context *ntvfs,
handle = io->t2fnext.in.handle;
- search = idr_find(pvfs->idtree_search, handle);
+ search = idr_find(pvfs->search.idtree, handle);
if (search == NULL) {
/* we didn't find the search handle */
return NT_STATUS_INVALID_HANDLE;
@@ -631,7 +620,7 @@ NTSTATUS pvfs_search_close(struct ntvfs_module_context *ntvfs,
handle = io->findclose.in.handle;
}
- search = idr_find(pvfs->idtree_search, handle);
+ search = idr_find(pvfs->search.idtree, handle);
if (search == NULL) {
/* we didn't find the search handle */
return NT_STATUS_INVALID_HANDLE;
diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c
index 3f1c676df3..cb441cb4c9 100644
--- a/source4/ntvfs/posix/vfs_posix.c
+++ b/source4/ntvfs/posix/vfs_posix.c
@@ -57,7 +57,7 @@ static void pvfs_setup_options(struct pvfs_state *pvfs)
pvfs->alloc_size_rounding = lp_parm_int(snum,
"posix", "allocationrounding", 512);
- pvfs->search_inactivity_time = lp_parm_int(snum,
+ pvfs->search.inactivity_time = lp_parm_int(snum,
"posix", "searchinactivity", 300);
#if HAVE_XATTR_SUPPORT
@@ -104,6 +104,28 @@ static void pvfs_setup_options(struct pvfs_state *pvfs)
}
}
+static int pvfs_state_destructor(void *ptr)
+{
+ struct pvfs_state *pvfs = talloc_get_type(ptr, struct pvfs_state);
+ struct pvfs_file *f, *fn;
+ struct pvfs_search_state *s, *sn;
+
+ /*
+ * make sure we cleanup files and searches before anythingelse
+ * because there destructors need to acess the pvfs_state struct
+ */
+ for (f=pvfs->files.list; f; f=fn) {
+ fn = f->next;
+ talloc_free(f);
+ }
+
+ for (s=pvfs->search.list; s; s=sn) {
+ sn = s->next;
+ talloc_free(s);
+ }
+
+ return 0;
+}
/*
connect to a share - used when a tree_connect operation comes
@@ -169,18 +191,20 @@ static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
}
/* allocate the fnum id -> ptr tree */
- pvfs->idtree_fnum = idr_init(pvfs);
- NT_STATUS_HAVE_NO_MEMORY(pvfs->idtree_fnum);
+ pvfs->files.idtree = idr_init(pvfs);
+ NT_STATUS_HAVE_NO_MEMORY(pvfs->files.idtree);
/* allocate the search handle -> ptr tree */
- pvfs->idtree_search = idr_init(pvfs);
- NT_STATUS_HAVE_NO_MEMORY(pvfs->idtree_search);
+ pvfs->search.idtree = idr_init(pvfs);
+ NT_STATUS_HAVE_NO_MEMORY(pvfs->search.idtree);
status = pvfs_mangle_init(pvfs);
NT_STATUS_NOT_OK_RETURN(status);
pvfs_setup_options(pvfs);
+ talloc_set_destructor(pvfs, pvfs_state_destructor);
+
#ifdef SIGXFSZ
/* who had the stupid idea to generate a signal on a large
file write instead of just failing it!? */
diff --git a/source4/ntvfs/posix/vfs_posix.h b/source4/ntvfs/posix/vfs_posix.h
index f75e7d3563..59e4ec1abf 100644
--- a/source4/ntvfs/posix/vfs_posix.h
+++ b/source4/ntvfs/posix/vfs_posix.h
@@ -38,20 +38,12 @@ struct pvfs_state {
const char *share_name;
uint_t flags;
- struct pvfs_file *open_files;
-
struct pvfs_mangle_context *mangle_ctx;
struct brl_context *brl_context;
struct odb_context *odb_context;
struct sidmap_context *sidmap;
- /* an id tree mapping open search ID to a pvfs_search_state structure */
- struct idr_context *idtree_search;
-
- /* an id tree mapping open file handle -> struct pvfs_file */
- struct idr_context *idtree_fnum;
-
/* a list of pending async requests. Needed to support
ntcancel */
struct pvfs_wait *wait_list;
@@ -68,9 +60,25 @@ struct pvfs_state {
/* the allocation size rounding */
uint32_t alloc_size_rounding;
- /* how long to keep inactive searches around for */
- uint_t search_inactivity_time;
-
+ struct {
+ /* an id tree mapping open file handle -> struct pvfs_file */
+ struct idr_context *idtree;
+
+ /* the open files as DLINKLIST */
+ struct pvfs_file *list;
+ } files;
+
+ struct {
+ /* an id tree mapping open search ID to a pvfs_search_state structure */
+ struct idr_context *idtree;
+
+ /* the open searches as DLINKLIST */
+ struct pvfs_search_state *list;
+
+ /* how long to keep inactive searches around for */
+ uint_t inactivity_time;
+ } search;
+
/* used to accelerate acl mapping */
struct {
const struct dom_sid *creator_owner;
@@ -173,6 +181,20 @@ struct pvfs_file {
uint64_t lock_count;
};
+/* the state of a search started with pvfs_search_first() */
+struct pvfs_search_state {
+ struct pvfs_search_state *prev, *next;
+ struct pvfs_state *pvfs;
+ uint16_t handle;
+ uint_t current_index;
+ uint16_t search_attrib;
+ uint16_t must_attrib;
+ struct pvfs_dir *dir;
+ time_t last_used;
+ uint_t num_ea_names;
+ struct ea_name *ea_names;
+ struct timed_event *te;
+};
/* flags to pvfs_resolve_name() */
#define PVFS_RESOLVE_WILDCARD (1<<0)