| .\" %%%LICENSE_START(PUBLIC_DOMAIN) |
| .\" This text is in the public domain. |
| .\" %%%LICENSE_END |
| .\" |
| .TH NFSSERVCTL 2 2020-06-09 "Linux" "Linux Programmer's Manual" |
| .SH NAME |
| nfsservctl \- syscall interface to kernel nfs daemon |
| .SH SYNOPSIS |
| .nf |
| .B #include <linux/nfsd/syscall.h> |
| .PP |
| .BI "long nfsservctl(int " cmd ", struct nfsctl_arg *" argp , |
| .BI " union nfsctl_res *" resp ); |
| .fi |
| .SH DESCRIPTION |
| .IR Note : |
| Since Linux 3.1, this system call no longer exists. |
| It has been replaced by a set of files in the |
| .I nfsd |
| filesystem; see |
| .BR nfsd (7). |
| .PP |
| .in +4n |
| .EX |
| /* |
| * These are the commands understood by nfsctl(). |
| */ |
| #define NFSCTL_SVC 0 /* This is a server process. */ |
| #define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */ |
| #define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */ |
| #define NFSCTL_EXPORT 3 /* Export a filesystem. */ |
| #define NFSCTL_UNEXPORT 4 /* Unexport a filesystem. */ |
| #define NFSCTL_UGIDUPDATE 5 /* Update a client's UID/GID map |
| (only in Linux 2.4.x and earlier). */ |
| #define NFSCTL_GETFH 6 /* Get a file handle (used by mountd) |
| (only in Linux 2.4.x and earlier). */ |
| |
| struct nfsctl_arg { |
| int ca_version; /* safeguard */ |
| union { |
| struct nfsctl_svc u_svc; |
| struct nfsctl_client u_client; |
| struct nfsctl_export u_export; |
| struct nfsctl_uidmap u_umap; |
| struct nfsctl_fhparm u_getfh; |
| unsigned int u_debug; |
| } u; |
| } |
| |
| union nfsctl_res { |
| struct knfs_fh cr_getfh; |
| unsigned int cr_debug; |
| }; |
| .EE |
| .in |
| .SH RETURN VALUE |
| On success, zero is returned. |
| On error, \-1 is returned, and |
| .I errno |
| is set appropriately. |
| .SH VERSIONS |
| This system call was removed from the Linux kernel in version 3.1. |
| Library support was removed from glibc in version 2.28. |
| .SH CONFORMING TO |
| This call is Linux-specific. |
| .SH SEE ALSO |
| .BR nfsd (7) |