diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfsctl.c | 18 | ||||
| -rw-r--r-- | fs/nfsd/nfssvc.c | 93 |
2 files changed, 58 insertions, 53 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 7046ac9cf97f..d6881774ea57 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -35,8 +35,6 @@ #include <asm/uaccess.h> -unsigned int nfsd_versbits = ~0; - /* * We have a single directory with 9 nodes in it. */ @@ -372,6 +370,10 @@ static ssize_t write_versions(struct file *file, char *buf, size_t size) if (size>0) { if (nfsd_serv) + /* Cannot change versions without updating + * nfsd_serv->sv_xdrsize, and reallocing + * rq_argp and rq_resp + */ return -EBUSY; if (buf[size-1] != '\n') return -EINVAL; @@ -390,10 +392,7 @@ static ssize_t write_versions(struct file *file, char *buf, size_t size) case 2: case 3: case 4: - if (sign != '-') - NFSCTL_VERSET(nfsd_versbits, num); - else - NFSCTL_VERUNSET(nfsd_versbits, num); + nfsd_vers(num, sign == '-' ? NFSD_CLEAR : NFSD_SET); break; default: return -EINVAL; @@ -404,16 +403,15 @@ static ssize_t write_versions(struct file *file, char *buf, size_t size) /* If all get turned off, turn them back on, as * having no versions is BAD */ - if ((nfsd_versbits & NFSCTL_VERALL)==0) - nfsd_versbits = NFSCTL_VERALL; + nfsd_reset_versions(); } /* Now write current state into reply buffer */ len = 0; sep = ""; for (num=2 ; num <= 4 ; num++) - if (NFSCTL_VERISSET(NFSCTL_VERALL, num)) { + if (nfsd_vers(num, NFSD_AVAIL)) { len += sprintf(buf+len, "%s%c%d", sep, - NFSCTL_VERISSET(nfsd_versbits, num)?'+':'-', + nfsd_vers(num, NFSD_TEST)?'+':'-', num); sep = " "; } diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 0339b4ddfa3b..140e3a2d1b9f 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -117,6 +117,32 @@ struct svc_program nfsd_program = { }; +int nfsd_vers(int vers, enum vers_op change) +{ + if (vers < NFSD_MINVERS || vers >= NFSD_NRVERS) + return -1; + switch(change) { + case NFSD_SET: + nfsd_versions[vers] = nfsd_version[vers]; + break; +#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) + if (vers < NFSD_ACL_NRVERS) + nfsd_acl_version[vers] = nfsd_acl_version[vers]; +#endif + case NFSD_CLEAR: + nfsd_versions[vers] = NULL; +#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) + if (vers < NFSD_ACL_NRVERS) + nfsd_acl_version[vers] = NULL; +#endif + break; + case NFSD_TEST: + return nfsd_versions[vers] != NULL; + case NFSD_AVAIL: + return nfsd_version[vers] != NULL; + } + return 0; +} /* * Maximum number of nfsd processes */ @@ -147,16 +173,36 @@ static void nfsd_last_thread(struct svc_serv *serv) nfsd_export_flush(); } } + +void nfsd_reset_versions(void) +{ + int found_one = 0; + int i; + + for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) { + if (nfsd_program.pg_vers[i]) + found_one = 1; + } + + if (!found_one) { + for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) + nfsd_program.pg_vers[i] = nfsd_version[i]; +#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) + for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++) + nfsd_acl_program.pg_vers[i] = + nfsd_acl_version[i]; +#endif + } +} + int nfsd_svc(unsigned short port, int nrservs) { int error; - int found_one, i; struct list_head *victim; lock_kernel(); - dprintk("nfsd: creating service: vers 0x%x\n", - nfsd_versbits); + dprintk("nfsd: creating service\n"); error = -EINVAL; if (nrservs <= 0) nrservs = 0; @@ -171,46 +217,7 @@ nfsd_svc(unsigned short port, int nrservs) if (error<0) goto out; if (!nfsd_serv) { - /* - * Use the nfsd_ctlbits to define which - * versions that will be advertised. - * If nfsd_ctlbits doesn't list any version, - * export them all. - */ - found_one = 0; - - for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) { - if (NFSCTL_VERISSET(nfsd_versbits, i)) { - nfsd_program.pg_vers[i] = nfsd_version[i]; - found_one = 1; - } else - nfsd_program.pg_vers[i] = NULL; - } - - if (!found_one) { - for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) - nfsd_program.pg_vers[i] = nfsd_version[i]; - } - - -#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) - found_one = 0; - - for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++) { - if (NFSCTL_VERISSET(nfsd_versbits, i)) { - nfsd_acl_program.pg_vers[i] = - nfsd_acl_version[i]; - found_one = 1; - } else - nfsd_acl_program.pg_vers[i] = NULL; - } - - if (!found_one) { - for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++) - nfsd_acl_program.pg_vers[i] = - nfsd_acl_version[i]; - } -#endif + nfsd_reset_versions(); atomic_set(&nfsd_busy, 0); error = -ENOMEM; |