From 029be5d03357f0797d1b9a6b5aab5e7e311fd76a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 9 Apr 2019 11:46:18 -0400 Subject: nfsd: Add custom rpcbind callbacks for knfsd Add custom rpcbind callbacks in preparation for the knfsd per-container version feature. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- fs/nfsd/nfssvc.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 46 insertions(+), 2 deletions(-) (limited to 'fs/nfsd') diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 6a52400c85e0..378edcfe9701 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -32,6 +32,18 @@ extern struct svc_program nfsd_program; static int nfsd(void *vrqstp); +#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) +static int nfsd_acl_rpcbind_set(struct net *, + const struct svc_program *, + u32, int, + unsigned short, + unsigned short); +#endif +static int nfsd_rpcbind_set(struct net *, + const struct svc_program *, + u32, int, + unsigned short, + unsigned short); /* * nfsd_mutex protects nn->nfsd_serv -- both the pointer itself and the members @@ -87,7 +99,7 @@ static struct svc_program nfsd_acl_program = { .pg_stats = &nfsd_acl_svcstats, .pg_authenticate = &svc_set_client, .pg_init_request = svc_generic_init_request, - .pg_rpcbind_set = svc_generic_rpcbind_set, + .pg_rpcbind_set = nfsd_acl_rpcbind_set, }; static struct svc_stat nfsd_acl_svcstats = { @@ -121,7 +133,7 @@ struct svc_program nfsd_program = { .pg_stats = &nfsd_svcstats, /* version table */ .pg_authenticate = &svc_set_client, /* export authentication */ .pg_init_request = svc_generic_init_request, - .pg_rpcbind_set = svc_generic_rpcbind_set, + .pg_rpcbind_set = nfsd_rpcbind_set, }; static bool nfsd_supported_minorversions[NFSD_SUPPORTED_MINOR_VERSION + 1] = { @@ -670,6 +682,38 @@ out: return error; } +#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) +static bool +nfsd_support_acl_version(int vers) +{ + if (vers >= NFSD_ACL_MINVERS && vers < NFSD_ACL_NRVERS) + return nfsd_acl_version[vers] != NULL; + return false; +} + +static int +nfsd_acl_rpcbind_set(struct net *net, const struct svc_program *progp, + u32 version, int family, unsigned short proto, + unsigned short port) +{ + if (!nfsd_support_acl_version(version) || + !nfsd_vers(version, NFSD_TEST)) + return 0; + return svc_generic_rpcbind_set(net, progp, version, family, + proto, port); +} +#endif + +static int +nfsd_rpcbind_set(struct net *net, const struct svc_program *progp, + u32 version, int family, unsigned short proto, + unsigned short port) +{ + if (!nfsd_vers(version, NFSD_TEST)) + return 0; + return svc_generic_rpcbind_set(net, progp, version, family, + proto, port); +} /* * This is the NFS server kernel thread -- cgit v1.2.3