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| author | Chuck Lever <chuck.lever@oracle.com> | 2008-09-03 14:35:39 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-09-29 18:13:39 -0400 |
| commit | b4ed58fd34d4def88bda59f9cc566ec9fca6a096 (patch) | |
| tree | ce377f9ec8773a26e4a967e7d73d42e99d39b0ea | |
| parent | 5344b12d4f97d4a9a62d806425977a6ff64b6baf (diff) | |
| download | op-kernel-dev-b4ed58fd34d4def88bda59f9cc566ec9fca6a096.zip op-kernel-dev-b4ed58fd34d4def88bda59f9cc566ec9fca6a096.tar.gz | |
lockd: Use sockaddr_storage + length for h_addr field
To store larger addresses in the nlm_host structure, make h_addr a
sockaddr_storage, and add an address length field.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| -rw-r--r-- | fs/lockd/clntlock.c | 2 | ||||
| -rw-r--r-- | fs/lockd/host.c | 11 | ||||
| -rw-r--r-- | include/linux/lockd/lockd.h | 16 |
3 files changed, 22 insertions, 7 deletions
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c index 0b45fd3..0df5587 100644 --- a/fs/lockd/clntlock.c +++ b/fs/lockd/clntlock.c @@ -166,7 +166,7 @@ __be32 nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *lock */ if (fl_blocked->fl_u.nfs_fl.owner->pid != lock->svid) continue; - if (!nlm_cmp_addr(&block->b_host->h_addr, addr)) + if (!nlm_cmp_addr(nlm_addr_in(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 008e402..8c7022e 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -116,7 +116,7 @@ static struct nlm_host *nlm_lookup_host(int server, */ chain = &nlm_hosts[hash]; hlist_for_each_entry(host, pos, chain, h_hash) { - if (!nlm_cmp_addr(&host->h_addr, sin)) + if (!nlm_cmp_addr(nlm_addr_in(host), sin)) continue; /* See if we have an NSM handle for this client */ @@ -165,8 +165,9 @@ static struct nlm_host *nlm_lookup_host(int server, goto out; } host->h_name = nsm->sm_name; - host->h_addr = *sin; - nlm_clear_port((struct sockaddr *)&host->h_addr); + memcpy(nlm_addr(host), sin, sizeof(*sin)); + host->h_addrlen = sizeof(*sin); + nlm_clear_port(nlm_addr(host)); host->h_saddr = *ssin; host->h_version = version; host->h_proto = proto; @@ -291,8 +292,8 @@ nlm_bind_host(struct nlm_host *host) }; struct rpc_create_args args = { .protocol = host->h_proto, - .address = (struct sockaddr *)&host->h_addr, - .addrsize = sizeof(host->h_addr), + .address = nlm_addr(host), + .addrsize = host->h_addrlen, .saddress = (struct sockaddr *)&host->h_saddr, .timeout = &timeparms, .servername = host->h_name, diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index 0691efb..41d7a8e 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -38,7 +38,8 @@ */ struct nlm_host { struct hlist_node h_hash; /* doubly linked list */ - struct sockaddr_in h_addr; /* peer address */ + struct sockaddr_storage h_addr; /* peer address */ + size_t h_addrlen; struct sockaddr_in h_saddr; /* our address (optional) */ struct rpc_clnt * h_rpcclnt; /* RPC client to talk to peer */ char * h_name; /* remote hostname */ @@ -77,6 +78,19 @@ struct nsm_handle { }; /* + * Rigorous type checking on sockaddr type conversions + */ +static inline struct sockaddr_in *nlm_addr_in(const struct nlm_host *host) +{ + return (struct sockaddr_in *)&host->h_addr; +} + +static inline struct sockaddr *nlm_addr(const struct nlm_host *host) +{ + return (struct sockaddr *)&host->h_addr; +} + +/* * Map an fl_owner_t into a unique 32-bit "pid" */ struct nlm_lockowner { |
