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See ChangeLog: Wed Jun 14 12:27:09 CEST 2000 Werner Koch

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This commit is contained in:
Werner Koch 2000-06-14 10:12:10 +00:00
parent b8013e44ad
commit 07e51ec069
9 changed files with 92 additions and 33 deletions
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64
g10/status.c
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@ -196,6 +196,10 @@ init_shm_coprocessing ( ulong requested_shm_size, int lock_mem )
if ( shm_id == -1 )
log_fatal("can't get %uk of shared memory: %s\n",
(unsigned)shm_size/1024, strerror(errno));
#if !defined(IPC_HAVE_SHM_LOCK) \
&& defined(HAVE_MLOCK) && !defined(HAVE_BROKEN_MLOCK)
/* part of the old code which uses mlock */
shm_area = shmat( shm_id, 0, 0 );
if ( shm_area == (char*)-1 )
log_fatal("can't attach %uk shared memory: %s\n",
@ -206,29 +210,17 @@ init_shm_coprocessing ( ulong requested_shm_size, int lock_mem )
#ifdef USE_CAPABILITIES
cap_set_proc( cap_from_text("cap_ipc_lock+ep") );
#endif
#ifdef IPC_HAVE_SHM_LOCK
if ( shmctl (shm_id, SHM_LOCK, 0) )
log_info("locking shared memory %d failed: %s\n",
shm_id, strerror(errno));
else
shm_is_locked = 1;
#elif defined(HAVE_MLOCK) && !defined(HAVE_BROKEN_MLOCK)
/* (need the cast for Solaris with Sun's workshop compilers) */
if ( mlock ( (char*)shm_area, shm_size) )
log_info("locking shared memory %d failed: %s\n",
shm_id, strerror(errno));
else
shm_is_locked = 1;
#else
log_info("Locking shared memory %d failed: No way to do it\n", shm_id );
#endif
#ifdef USE_CAPABILITIES
cap_set_proc( cap_from_text("cap_ipc_lock+p") );
#endif
}
#ifdef IPC_RMID_DEFERRED_RELEASE
if( shmctl( shm_id, IPC_RMID, 0) )
log_fatal("shmctl IPC_RMDID of %d failed: %s\n",
@ -245,13 +237,59 @@ init_shm_coprocessing ( ulong requested_shm_size, int lock_mem )
shm_id, strerror(errno));
}
#else /* this is the new code which handles the changes in the SHM semantics
* introduced with Linux 2.4. The changes is that we now change the
* permissions and then attach to the memory.
*/
if( lock_mem ) {
#ifdef USE_CAPABILITIES
cap_set_proc( cap_from_text("cap_ipc_lock+ep") );
#endif
#ifdef IPC_HAVE_SHM_LOCK
if ( shmctl (shm_id, SHM_LOCK, 0) )
log_info("locking shared memory %d failed: %s\n",
shm_id, strerror(errno));
else
shm_is_locked = 1;
#else
log_info("Locking shared memory %d failed: No way to do it\n", shm_id );
#endif
#ifdef USE_CAPABILITIES
cap_set_proc( cap_from_text("cap_ipc_lock+p") );
#endif
}
if( shmctl( shm_id, IPC_STAT, &shmds ) )
log_fatal("shmctl IPC_STAT of %d failed: %s\n",
shm_id, strerror(errno));
if( shmds.shm_perm.uid != getuid() ) {
shmds.shm_perm.uid = getuid();
if( shmctl( shm_id, IPC_SET, &shmds ) )
log_fatal("shmctl IPC_SET of %d failed: %s\n",
shm_id, strerror(errno));
}
shm_area = shmat( shm_id, 0, 0 );
if ( shm_area == (char*)-1 )
log_fatal("can't attach %uk shared memory: %s\n",
(unsigned)shm_size/1024, strerror(errno));
log_debug("mapped %uk shared memory at %p, id=%d\n",
(unsigned)shm_size/1024, shm_area, shm_id );
#ifdef IPC_RMID_DEFERRED_RELEASE
if( shmctl( shm_id, IPC_RMID, 0) )
log_fatal("shmctl IPC_RMDID of %d failed: %s\n",
shm_id, strerror(errno));
#endif
#endif
/* write info; Protocol version, id, size, locked size */
sprintf( buf, "pv=1 pid=%d shmid=%d sz=%u lz=%u", (int)getpid(),
shm_id, (unsigned)shm_size, shm_is_locked? (unsigned)shm_size:0 );
write_status_text( STATUS_SHM_INFO, buf );
}
/****************
* Request a string from client
* If bool, returns static string on true (do not free) or NULL for false