From c446c128e9be75fa8617a11403d867a8885ee80b Mon Sep 17 00:00:00 2001
From: Nickolai Zeldovich <kolya@mit.edu>
Date: Fri, 8 Feb 2002 19:50:00 +0000
Subject: [PATCH] Allow AFS to shutdown on Solaris (and subsequently be
 reloaded and restarted).  Still leaks memory, unlike the Linux module.

---
 src/afs/SOLARIS/osi_vfsops.c | 25 ++++++++++++++++++++++---
 src/rx/SOLARIS/rx_knet.c     | 17 +++++++++++++++++
 src/rx/rx_kcommon.c          |  5 +++++
 3 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/src/afs/SOLARIS/osi_vfsops.c b/src/afs/SOLARIS/osi_vfsops.c
index 2a7d4350e..009b34a6b 100644
--- a/src/afs/SOLARIS/osi_vfsops.c
+++ b/src/afs/SOLARIS/osi_vfsops.c
@@ -246,6 +246,9 @@ void (*ufs_iupdatp)();
 int (*ufs_igetp)();
 void (*ufs_itimes_nolockp)();
 
+int (*afs_orig_ioctl)(), (*afs_orig_ioctl32)();
+int (*afs_orig_setgroups)(), (*afs_orig_setgroups32)();
+
 struct streamtab *udp_infop = 0;
 struct ill_s *ill_g_headp = 0;
 
@@ -264,15 +267,19 @@ extern Afs_syscall();
 
 afsinit(struct vfssw *vfsswp, int fstype)
 {
-    extern int afs_xioctl(), afs_xflock();
+    extern int afs_xioctl();
     extern int afs_xsetgroups();
 
     AFS_STATCNT(afsinit);
 
+    afs_orig_setgroups = sysent[SYS_setgroups].sy_callc;
+    afs_orig_ioctl = sysent[SYS_ioctl].sy_call;
     sysent[SYS_setgroups].sy_callc = afs_xsetgroups;
     sysent[SYS_ioctl].sy_call = afs_xioctl;
 
 #if defined(AFS_SUN57_64BIT_ENV)
+    afs_orig_setgroups32 = sysent32[SYS_setgroups].sy_callc;
+    afs_orig_ioctl32 = sysent32[SYS_ioctl].sy_call;
     sysent32[SYS_setgroups].sy_callc = afs_xsetgroups;
     sysent32[SYS_ioctl].sy_call = afs_xioctl;
 #endif
@@ -405,6 +412,9 @@ _init()
     extern struct bind *sb_hashtab[];
     struct modctl *mp = 0;
 
+    if (afs_sinited)
+	return EBUSY;
+
     if ((!(mp = mod_find_by_filename("fs", "ufs")) && 
 	!(mp = mod_find_by_filename(NULL, "/kernel/fs/ufs")) &&
 	!(mp = mod_find_by_filename(NULL, "sys/ufs"))) ||
@@ -486,8 +496,17 @@ _fini()
 {
     int code;
 
-    if (afs_sinited)
-	return (EBUSY);
+    if (afs_globalVFS)
+	return EBUSY;
+
+    if (afs_sinited) {
+	sysent[SYS_setgroups].sy_callc = afs_orig_setgroups;
+	sysent[SYS_ioctl].sy_call = afs_orig_ioctl;
+#if defined(AFS_SUN57_64BIT_ENV)
+	sysent32[SYS_setgroups].sy_callc = afs_orig_setgroups32;
+	sysent32[SYS_ioctl].sy_call = afs_orig_ioctl32;
+#endif
+    }
     code = mod_remove(&afs_modlinkage);
     return code;
 }
diff --git a/src/rx/SOLARIS/rx_knet.c b/src/rx/SOLARIS/rx_knet.c
index 04f8d5132..a2a75ca0c 100644
--- a/src/rx/SOLARIS/rx_knet.c
+++ b/src/rx/SOLARIS/rx_knet.c
@@ -51,6 +51,10 @@ int (*sockfs_sosendmsg)
     (struct sonode *, struct nmsghdr *, struct uio *) = NULL;
 int (*sockfs_sosetsockopt)
     (struct sonode *, int, int, void *, int) = NULL;
+int (*sockfs_sounbind)
+    (struct sonode *, int);
+void (*sockfs_sockfree)
+    (struct sonode *);
 
 static afs_uint32 myNetAddrs[ADDRSPERSITE];
 static int myNetMTUs[ADDRSPERSITE];
@@ -238,6 +242,16 @@ struct osi_socket *rxk_NewSocket(short aport)
 	    return NULL;
 	}
     }
+    if (sockfs_sounbind == NULL) {
+	sockfs_sounbind = (int (*)())modlookup("sockfs", "sounbind");
+	if (sockfs_sounbind == NULL)
+	    return NULL;
+    }
+    if (sockfs_sockfree == NULL) {
+	sockfs_sockfree = (void (*)())modlookup("sockfs", "sockfree");
+	if (sockfs_sockfree == NULL)
+	    return NULL;
+    }
 
     accessvp = sockfs_solookup(AF_INET, SOCK_DGRAM, 0, "/dev/udp", &error);
     if (accessvp == NULL) {
@@ -285,6 +299,9 @@ int osi_FreeSocket(asocket)
 	kill(rxk_ListenerPid, SIGUSR1);
 	afs_osi_Sleep(&rxk_ListenerPid);
     }
+
+    sockfs_sounbind(so, 0);
+    sockfs_sockfree(so);
     return 0;
 }
 
diff --git a/src/rx/rx_kcommon.c b/src/rx/rx_kcommon.c
index 8a2756f44..44438e6fe 100644
--- a/src/rx/rx_kcommon.c
+++ b/src/rx/rx_kcommon.c
@@ -1061,6 +1061,11 @@ void rxk_Listener(void)
 #endif
 #ifdef AFS_SUN5_ENV
     AFS_GUNLOCK();
+#ifdef AFS_SUN57_ENV
+    if (!curproc->p_corefile)  /* newproc doesn't set it, but exit frees it */
+	curproc->p_corefile = refstr_alloc("core");
+#endif
+    exit(CLD_EXITED, 0);
 #endif /* AFS_SUN5_ENV */
 }
 
-- 
2.39.5