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authorMathias Dietz <MDIETZ@de.ibm.com>2008-11-12 14:32:45 +0100
committerMichael Adam <obnox@samba.org>2008-11-24 16:22:05 +0100
commit51b840a07e84ab342f7b116171519219b3f9b1e1 (patch)
tree43401c0b708f5da85040abd0d66f05b14d255769 /source3/modules
parent26461a72da5a646fcc6023bb4f82c66e17a8529b (diff)
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Search for gpfs functions in both libgpfs_gpl.so an libgpfs.so
As of GPFS 3.2.1 PTF8 libgpfs will be available as GPL, so we don't need the special libgpfs_gpl lib anymore. For backwards compatibility with pre-PTF8 GPFS installations, still look there.
Diffstat (limited to 'source3/modules')
-rw-r--r--source3/modules/gpfs.c92
1 files changed, 45 insertions, 47 deletions
diff --git a/source3/modules/gpfs.c b/source3/modules/gpfs.c
index a0d33fa33a..4e76b97ccf 100644
--- a/source3/modules/gpfs.c
+++ b/source3/modules/gpfs.c
@@ -24,7 +24,6 @@
#include "gpfs_gpl.h"
#include "vfs_gpfs.h"
-static void *libgpfs_handle = NULL;
static bool gpfs_share_modes;
static bool gpfs_leases;
@@ -135,65 +134,64 @@ int smbd_gpfs_putacl(char *pathname, int flags, void *acl)
return gpfs_putacl_fn(pathname, flags, acl);
}
-void init_gpfs(void)
+static bool init_gpfs_function_lib(void *plibhandle_pointer,
+ const char *libname,
+ void *pfn_pointer, const char *fn_name)
{
- if (libgpfs_handle != NULL) {
- return;
- }
-
- libgpfs_handle = dlopen("libgpfs_gpl.so", RTLD_LAZY);
-
- if (libgpfs_handle == NULL) {
- DEBUG(10, ("dlopen for libgpfs_gpl failed: %s\n",
- strerror(errno)));
- return;
+ bool did_open_here = false;
+ void **libhandle_pointer = (void **)plibhandle_pointer;
+ void **fn_pointer = (void **)pfn_pointer;
+
+ if (*libhandle_pointer == NULL) {
+ *libhandle_pointer = dlopen(libname, RTLD_LAZY);
+ did_open_here = true;
+ }
+ if (*libhandle_pointer == NULL) {
+ DEBUG(10, ("Could not open lib %s\n", libname));
+ return false;
+ }
+
+ *fn_pointer = dlsym(*libhandle_pointer, fn_name);
+ if (*fn_pointer == NULL) {
+ DEBUG(10, ("Did not find symbol %s in lib %s\n",
+ fn_name, libname));
+ if (did_open_here) {
+ dlclose(*libhandle_pointer);
+ *libhandle_pointer = NULL;
+ }
+ return false;
}
- DEBUG(10, ("libgpfs_gpl.so loaded\n"));
-
- gpfs_set_share_fn = dlsym(libgpfs_handle, "gpfs_set_share");
- if (gpfs_set_share_fn == NULL) {
- DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
- "'gpfs_set_share'\n"));
- goto failed;
- }
+ return true;
+}
- gpfs_set_lease_fn = dlsym(libgpfs_handle, "gpfs_set_lease");
- if (gpfs_set_lease_fn == NULL) {
- DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
- "'gpfs_set_lease'\n"));
- dlclose(libgpfs_handle);
+static bool init_gpfs_function(void *fn_pointer, const char *fn_name)
+{
+ static void *libgpfs_handle = NULL;
+ static void *libgpfs_gpl_handle = NULL;
- goto failed;
+ if (init_gpfs_function_lib(&libgpfs_handle, "libgpfs.so",
+ fn_pointer, fn_name)) {
+ return true;
}
-
- gpfs_getacl_fn = dlsym(libgpfs_handle, "gpfs_getacl");
- if (gpfs_getacl_fn == NULL) {
- DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
- "'gpfs_getacl'\n"));
- goto failed;
+ if (init_gpfs_function_lib(&libgpfs_gpl_handle, "libgpfs_gpl.so",
+ fn_pointer, fn_name)) {
+ return true;
}
+ return false;
+}
- gpfs_putacl_fn = dlsym(libgpfs_handle, "gpfs_putacl");
- if (gpfs_putacl_fn == NULL) {
- DEBUG(3, ("libgpfs_gpl.so does not contain the symbol "
- "'gpfs_putacl'\n"));
- goto failed;
- }
+void init_gpfs(void)
+{
+ init_gpfs_function(&gpfs_set_share_fn, "gpfs_set_share");
+ init_gpfs_function(&gpfs_set_lease_fn, "gpfs_set_lease");
+ init_gpfs_function(&gpfs_getacl_fn, "gpfs_getacl");
+ init_gpfs_function(&gpfs_putacl_fn, "gpfs_putacl");
gpfs_share_modes = lp_parm_bool(-1, "gpfs", "sharemodes", True);
gpfs_leases = lp_parm_bool(-1, "gpfs", "leases", True);
return;
-
-failed:
- dlclose(libgpfs_handle);
- /* leave libgpfs_handle != NULL around, no point
- in trying twice */
- gpfs_set_share_fn = NULL;
- gpfs_set_lease_fn = NULL;
- gpfs_getacl_fn = NULL;
- gpfs_putacl_fn = NULL;
}
#else