diff options
| -rw-r--r-- | fs/lockd/mon.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index 84fd84cb67b7..87bd4e4d65dd 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -18,6 +18,8 @@ #define NLMDBG_FACILITY NLMDBG_MONITOR +#define XDR_ADDRBUF_LEN (20) + static struct rpc_clnt * nsm_create(void); static struct rpc_program nsm_program; @@ -158,6 +160,29 @@ static __be32 *xdr_encode_nsm_string(__be32 *p, char *string) return xdr_encode_opaque(p, string, len); } +/* + * "mon_name" specifies the host to be monitored. + * + * Linux uses a text version of the IP address of the remote + * host as the host identifier (the "mon_name" argument). + * + * Linux statd always looks up the canonical hostname first for + * whatever remote hostname it receives, so this works alright. + */ +static __be32 *xdr_encode_mon_name(__be32 *p, struct nsm_args *argp) +{ + char buffer[XDR_ADDRBUF_LEN + 1]; + char *name = argp->mon_name; + + if (!nsm_use_hostnames) { + snprintf(buffer, XDR_ADDRBUF_LEN, + NIPQUAD_FMT, NIPQUAD(argp->addr)); + name = buffer; + } + + return xdr_encode_nsm_string(p, name); +} + static __be32 * xdr_encode_common(struct rpc_rqst *rqstp, __be32 *p, struct nsm_args *argp) { |