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authorFred Isaman <iisaman@citi.umich.edu>2007-02-22 15:48:53 +1100
committerNeil Brown <neilb@suse.de>2007-02-22 15:48:53 +1100
commit5fb04a376e6d5ba940e66507e4a615f4e94116e6 (patch)
treefc75ece9014d7fd730cae73792adb681fc473d5f /utils/mountd
parent66d8e2870b8d3e91c27a66ebc85e012a3cda9c69 (diff)
Extend the exportfs interface to pass fslocations info into the kernel.
Extend exportfs interface to pass fslocations info into the kernel, using syntax modelled after AIX. Adds "refer=" and "replicas=" options to /etc/exports to enable use of the kernel fslocation code. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de>
Diffstat (limited to 'utils/mountd')
-rw-r--r--utils/mountd/Makefile.am2
-rw-r--r--utils/mountd/cache.c25
2 files changed, 26 insertions, 1 deletions
diff --git a/utils/mountd/Makefile.am b/utils/mountd/Makefile.am
index c8500cb..1e76cf8 100644
--- a/utils/mountd/Makefile.am
+++ b/utils/mountd/Makefile.am
@@ -8,7 +8,7 @@ KPREFIX = @kprefix@
sbin_PROGRAMS = mountd
mountd_SOURCES = mountd.c mount_dispatch.c auth.c rmtab.c cache.c \
- svc_run.c mountd.h
+ svc_run.c fsloc.c mountd.h
mountd_LDADD = ../../support/export/libexport.a \
../../support/nfs/libnfs.a \
../../support/misc/libmisc.a \
diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index 629d567..a14f4f2 100644
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -28,6 +28,7 @@
#include "exportfs.h"
#include "mountd.h"
#include "xmalloc.h"
+#include "fsloc.h"
#include "blkid/blkid.h"
@@ -421,6 +422,29 @@ void nfsd_fh(FILE *f)
return;
}
+static void write_fsloc(FILE *f, struct exportent *ep, char *path)
+{
+ struct servers *servers;
+
+ if (ep->e_fslocmethod == FSLOC_NONE)
+ return;
+
+ servers = replicas_lookup(ep->e_fslocmethod, ep->e_fslocdata, path);
+ if (!servers)
+ return;
+ qword_print(f, "fsloc");
+ qword_printint(f, servers->h_num);
+ if (servers->h_num >= 0) {
+ int i;
+ for (i=0; i<servers->h_num; i++) {
+ qword_print(f, servers->h_mp[i]->h_host);
+ qword_print(f, servers->h_mp[i]->h_path);
+ }
+ }
+ qword_printint(f, servers->h_referral);
+ release_replicas(servers);
+}
+
static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *exp)
{
qword_print(f, domain);
@@ -441,6 +465,7 @@ static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *ex
qword_print(f, "uuid");
qword_printhex(f, exp->e_uuid, 16);
}
+ write_fsloc(f, &exp, path);
}
return qword_eol(f);
}