From fe34ff0312c7c22554087ecd78bbbeadb38ce195 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Tue, 20 Sep 2011 07:40:15 -0400 Subject: [PATCH] nfsd: allow choosing server 41 support at runtime In the case where -N 4.1 is left off the commandline, the current code explicitly turns it on or off anyway, depending on configure options. Instead, just leave 4.1 support alone. This allows a user to add an "echo +4.1 >/proc/fs/nfsd/versions" to their init scripts, if they want. Otherwise they will get the kernel's default (currently to leave 4.1 off, as long as 4.1 support is experimental). Signed-off-by: J. Bruce Fields Signed-off-by: Steve Dickson --- support/include/nfs/nfs.h | 7 ------- utils/nfsd/nfsd.c | 11 ++++++++--- utils/nfsd/nfssvc.c | 10 ++++------ 3 files changed, 12 insertions(+), 16 deletions(-) diff --git a/support/include/nfs/nfs.h b/support/include/nfs/nfs.h index c939d78..320880e 100644 --- a/support/include/nfs/nfs.h +++ b/support/include/nfs/nfs.h @@ -15,13 +15,6 @@ #define NFSD_MINVERS 2 #define NFSD_MAXVERS 4 -#define NFSD_MINMINORVERS4 1 -#ifdef NFS41_SUPPORTED -#define NFSD_MAXMINORVERS4 1 -#else -#define NFSD_MAXMINORVERS4 0 -#endif - struct nfs_fh_len { int fh_size; u_int8_t fh_handle[NFS3_FHSIZE]; diff --git a/utils/nfsd/nfsd.c b/utils/nfsd/nfsd.c index e7e1470..8bc5d3a 100644 --- a/utils/nfsd/nfsd.c +++ b/utils/nfsd/nfsd.c @@ -94,7 +94,7 @@ main(int argc, char **argv) char *p, *progname, *port; char *haddr = NULL; int socket_up = 0; - int minorvers4 = NFSD_MAXMINORVERS4; /* nfsv4 minor version */ + int minorvers41 = 0; /* nfsv4 minor version */ unsigned int versbits = NFSCTL_ALLBITS; unsigned int protobits = NFSCTL_ALLBITS; unsigned int proto4 = 0; @@ -154,7 +154,12 @@ main(int argc, char **argv) switch((c = strtol(optarg, &p, 0))) { case 4: if (*p == '.') { - minorvers4 = -atoi(p + 1); + int i = atoi(p+1); + if (i != 1) { + fprintf(stderr, "%s: unsupported minor version\n", optarg); + exit(1); + } + minorvers41 = -1; break; } case 3: @@ -251,7 +256,7 @@ main(int argc, char **argv) * registered with rpcbind. Note that on older kernels w/o the right * interfaces, these are a no-op. */ - nfssvc_setvers(versbits, minorvers4); + nfssvc_setvers(versbits, minorvers41); error = nfssvc_set_sockets(AF_INET, proto4, haddr, port); if (!error) diff --git a/utils/nfsd/nfssvc.c b/utils/nfsd/nfssvc.c index f607214..683008e 100644 --- a/utils/nfsd/nfssvc.c +++ b/utils/nfsd/nfssvc.c @@ -269,7 +269,7 @@ nfssvc_set_sockets(const int family, const unsigned int protobits, } void -nfssvc_setvers(unsigned int ctlbits, int minorvers4) +nfssvc_setvers(unsigned int ctlbits, int minorvers41) { int fd, n, off; char *ptr; @@ -280,11 +280,9 @@ nfssvc_setvers(unsigned int ctlbits, int minorvers4) if (fd < 0) return; - n = minorvers4 >= 0 ? minorvers4 : -minorvers4; - if (n >= NFSD_MINMINORVERS4 && n <= NFSD_MAXMINORVERS4) - off += snprintf(ptr+off, sizeof(buf) - off, "%c4.%d ", - minorvers4 > 0 ? '+' : '-', - n); + if (minorvers41) + off += snprintf(ptr+off, sizeof(buf) - off, "%c4.1", + minorvers41 > 0 ? '+' : '-'); for (n = NFSD_MINVERS; n <= NFSD_MAXVERS; n++) { if (NFSCTL_VERISSET(ctlbits, n)) off += snprintf(ptr+off, sizeof(buf) - off, "+%d ", n); -- 2.39.2