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Search for gpfs functions in both libgpfs_gpl.so an libgpfs.so

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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.
This commit is contained in:
Mathias Dietz 2008-11-12 14:32:45 +01:00 committed by Michael Adam
parent 26461a72da
commit 51b840a07e
1 changed files with 51 additions and 53 deletions
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104
source3/modules/gpfs.c
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@ -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);
}
static bool init_gpfs_function_lib(void *plibhandle_pointer,
const char *libname,
void *pfn_pointer, const char *fn_name)
{
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;
}
return true;
}
static bool init_gpfs_function(void *fn_pointer, const char *fn_name)
{
static void *libgpfs_handle = NULL;
static void *libgpfs_gpl_handle = NULL;
if (init_gpfs_function_lib(&libgpfs_handle, "libgpfs.so",
fn_pointer, fn_name)) {
return true;
}
if (init_gpfs_function_lib(&libgpfs_gpl_handle, "libgpfs_gpl.so",
fn_pointer, fn_name)) {
return true;
}
return false;
}
void init_gpfs(void)
{
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;
}
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;
}
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);
goto failed;
}
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;
}
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;
}
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