lockd needs these sort of routines, as does the NFSv4 callback code.
Move lockd's routines into common code and rename them so that they can
be used by others.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/lockd/clntlock.c | 2 +-
fs/lockd/host.c | 4 +-
fs/lockd/mon.c | 2 +-
fs/lockd/svcsubs.c | 2 +-
include/linux/lockd/lockd.h | 43 --------------------------------------
include/linux/sunrpc/clnt.h | 48 +++++++++++++++++++++++++++++++++++++++++++
6 files changed, 53 insertions(+), 48 deletions(-)
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 1f3b0fc..fc9032d 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -166,7 +166,7 @@ __be32 nlmclnt_grant(const struct sockaddr *addr, const struct nlm_lock *lock)
*/
if (fl_blocked->fl_u.nfs_fl.owner->pid != lock->svid)
continue;
- if (!nlm_cmp_addr(nlm_addr(block->b_host), addr))
+ if (!rpc_cmp_addr(nlm_addr(block->b_host), addr))
continue;
if (nfs_compare_fh(NFS_FH(fl_blocked->fl_file->f_path.dentry->d_inode) ,fh) != 0)
continue;
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 7cb076a..4600c20 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -111,7 +111,7 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
*/
chain = &nlm_hosts[nlm_hash_address(ni->sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
- if (!nlm_cmp_addr(nlm_addr(host), ni->sap))
+ if (!rpc_cmp_addr(nlm_addr(host), ni->sap))
continue;
/* See if we have an NSM handle for this client */
@@ -125,7 +125,7 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
if (host->h_server != ni->server)
continue;
if (ni->server &&
- !nlm_cmp_addr(nlm_srcaddr(host), ni->src_sap))
+ !rpc_cmp_addr(nlm_srcaddr(host), ni->src_sap))
continue;
/* Move to head of hash chain. */
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 30c9331..f956651 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -209,7 +209,7 @@ static struct nsm_handle *nsm_lookup_addr(const struct sockaddr *sap)
struct nsm_handle *nsm;
list_for_each_entry(nsm, &nsm_handles, sm_link)
- if (nlm_cmp_addr(nsm_addr(nsm), sap))
+ if (rpc_cmp_addr(nsm_addr(nsm), sap))
return nsm;
return NULL;
}
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 9e4d6aa..ad478da 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -417,7 +417,7 @@ EXPORT_SYMBOL_GPL(nlmsvc_unlock_all_by_sb);
static int
nlmsvc_match_ip(void *datap, struct nlm_host *host)
{
- return nlm_cmp_addr(nlm_srcaddr(host), datap);
+ return rpc_cmp_addr(nlm_srcaddr(host), datap);
}
/**
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index c325b18..e7a251a 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -338,49 +338,6 @@ static inline int nlm_privileged_requester(const struct svc_rqst *rqstp)
}
}
-static inline int __nlm_cmp_addr4(const struct sockaddr *sap1,
- const struct sockaddr *sap2)
-{
- const struct sockaddr_in *sin1 = (const struct sockaddr_in *)sap1;
- const struct sockaddr_in *sin2 = (const struct sockaddr_in *)sap2;
- return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
-}
-
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
- const struct sockaddr *sap2)
-{
- const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sap1;
- const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
- return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
-}
-#else /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
-static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
- const struct sockaddr *sap2)
-{
- return 0;
-}
-#endif /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
-
-/*
- * Compare two host addresses
- *
- * Return TRUE if the addresses are the same; otherwise FALSE.
- */
-static inline int nlm_cmp_addr(const struct sockaddr *sap1,
- const struct sockaddr *sap2)
-{
- if (sap1->sa_family == sap2->sa_family) {
- switch (sap1->sa_family) {
- case AF_INET:
- return __nlm_cmp_addr4(sap1, sap2);
- case AF_INET6:
- return __nlm_cmp_addr6(sap1, sap2);
- }
- }
- return 0;
-}
-
/*
* Compare two NLM locks.
* When the second lock is of type F_UNLCK, this acts like a wildcard.
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index ab3f6e9..b17df36 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -22,6 +22,7 @@
#include <linux/sunrpc/timer.h>
#include <asm/signal.h>
#include <linux/path.h>
+#include <net/ipv6.h>
struct rpc_inode;
@@ -188,5 +189,52 @@ static inline void rpc_set_port(struct sockaddr *sap,
#define IPV6_SCOPE_DELIMITER '%'
#define IPV6_SCOPE_ID_LEN sizeof("%nnnnnnnnnn")
+static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
+ const struct sockaddr *sap2)
+{
+ const struct sockaddr_in *sin1 = (const struct sockaddr_in *)sap1;
+ const struct sockaddr_in *sin2 = (const struct sockaddr_in *)sap2;
+
+ return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
+}
+
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static inline bool __rpc_cmp_addr6(const struct sockaddr *sap1,
+ const struct sockaddr *sap2)
+{
+ const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sap1;
+ const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
+ return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
+}
+#else /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
+static inline bool __rpc_cmp_addr6(const struct sockaddr *sap1,
+ const struct sockaddr *sap2)
+{
+ return false;
+}
+#endif /* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
+
+/**
+ * rpc_cmp_addr - compare the address portion of two sockaddrs.
+ * @sap1: first sockaddr
+ * @sap2: second sockaddr
+ *
+ * Just compares the family and address portion. Ignores port, scope, etc.
+ * Returns true if the addrs are equal, false if they aren't.
+ */
+static inline bool rpc_cmp_addr(const struct sockaddr *sap1,
+ const struct sockaddr *sap2)
+{
+ if (sap1->sa_family == sap2->sa_family) {
+ switch (sap1->sa_family) {
+ case AF_INET:
+ return __rpc_cmp_addr4(sap1, sap2);
+ case AF_INET6:
+ return __rpc_cmp_addr6(sap1, sap2);
+ }
+ }
+ return false;
+}
+
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */
--
1.6.0.6
--
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