diff options
Diffstat (limited to 'usr/src/lib/librdc/common/rdcrules.c')
| -rw-r--r-- | usr/src/lib/librdc/common/rdcrules.c | 545 |
1 files changed, 0 insertions, 545 deletions
diff --git a/usr/src/lib/librdc/common/rdcrules.c b/usr/src/lib/librdc/common/rdcrules.c deleted file mode 100644 index 76fe39d48d..0000000000 --- a/usr/src/lib/librdc/common/rdcrules.c +++ /dev/null @@ -1,545 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#include <sys/types.h> -#include <sys/utsname.h> -#include <sys/mdb_modapi.h> -#include <stdio.h> -#include <errno.h> -#include <strings.h> -#include <stdlib.h> -#include <unistd.h> -#include <netdb.h> -#include <libintl.h> -#include <sys/stream.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <ctype.h> -#include <thread.h> -#include <pthread.h> - -#include <sys/unistat/spcs_s.h> -#include <sys/unistat/spcs_s_u.h> -#include <sys/unistat/spcs_s_impl.h> -#include <sys/unistat/spcs_errors.h> - -#include <sys/nsctl/rdc_io.h> -#include <sys/nsctl/rdc_ioctl.h> -#include <sys/nsctl/rdc_prot.h> -#include <sys/nsctl/librdc.h> -#include <sys/nsctl/rdcerr.h> -#include <sys/nsctl/cfg.h> - -#include <sys/unistat/spcs_dtrinkets.h> -#include <sys/unistat/spcs_etrinkets.h> - -#include <sys/socket.h> -#include <sys/mnttab.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netinet/tcp.h> -#include <rpc/rpc_com.h> -#include <rpc/rpc.h> - -#define RDC_LOCAL_TAG "local" - -/* - * bitmap_in_use - * return 1 if in use - * return 0 if not in use - * return -1 on error - */ - -int -bitmap_in_use(int cmd, char *hostp, char *bmp) -{ - int i, setnumber; - CFGFILE *cfg; - char host[CFG_MAX_BUF]; - char shost[CFG_MAX_BUF]; - char pri[CFG_MAX_BUF]; /* rdc primary vol */ - char sec[CFG_MAX_BUF]; /* rdc secondary vol */ - char sbm[CFG_MAX_BUF]; /* rdc secondary bitmap */ - char bit[CFG_MAX_BUF]; /* a bitmap */ - char mas[CFG_MAX_BUF]; /* II master */ - char sha[CFG_MAX_BUF]; /* II shadow */ - char mod[CFG_MAX_BUF]; /* II mode */ - char ovr[CFG_MAX_BUF]; /* II overflow */ - char buf[CFG_MAX_BUF]; - char key[CFG_MAX_KEY]; - int rc; - int ret = 0; - - - if ((cfg = cfg_open(NULL)) == NULL) { - rdc_set_error(NULL, RDC_DSCFG, 0, NULL); - return (-1); - } - if (!cfg_lock(cfg, CFG_RDLOCK)) { - rdc_set_error(NULL, RDC_DSCFG, 0, NULL); - cfg_close(cfg); - return (-1); - } - - /* - * look into II config to see if this is being used elsewhere - */ - /*CSTYLED*/ - for (i = 0; ; i++) { - setnumber = i + 1; - snprintf(key, sizeof (key), "ii.set%d", setnumber); - if (cfg_get_cstring(cfg, key, buf, CFG_MAX_BUF) < 0) - break; - - rc = sscanf(buf, "%s %s %s %s %s", mas, sha, bit, mod, ovr); - if (rc != 5) { - rdc_set_error(NULL, RDC_OS, 0, NULL); - ret = -1; - goto done; - } - - /* - * got master shadow bitmap, now compare - */ - if ((strcmp(bmp, mas) == 0) || - (strcmp(bmp, sha) == 0) || - (strcmp(bmp, bit) == 0) || - (strcmp(bmp, ovr) == 0)) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - "bitmap %s is in use by" - "Point-in-Time Copy", bmp); - ret = 1; - goto done; - } - } - /* - * and last but not least, make sure sndr is not using vol for anything - */ - /*CSTYLED*/ - for (i = 0; ; i++) { - setnumber = i + 1; - snprintf(key, sizeof (key), "sndr.set%d", setnumber); - if (cfg_get_cstring(cfg, key, buf, CFG_MAX_BUF) < 0) - break; - /* - * I think this is quicker than - * having to double dip into the config - */ - (void) sscanf(buf, "%s %s %s %s %s %s", host, pri, bit, - shost, sec, sbm); - if (cmd == RDC_CMD_ENABLE) { - if (self_check(host)) { - if ((strcmp(bmp, pri) == 0) || - (strcmp(bmp, bit) == 0)) { - rdc_set_error(NULL, RDC_INTERNAL, - RDC_NONFATAL, dgettext("librdc", - "bitmap %s is in use by %s"), - bmp, RDC_NAME_DU_JOUR); - - - ret = 1; - goto done; - } - } else { - if ((strcmp(bmp, sec) == 0) || - (strcmp(bmp, sbm) == 0)) { - rdc_set_error(NULL, RDC_INTERNAL, - RDC_NONFATAL, dgettext("librdc", - "bitmap %s is in use by %s"), - bmp, RDC_NAME_DU_JOUR); - ret = 1; - goto done; - } - } - } else if (cmd == RDC_CMD_RECONFIG) { - - /* - * read this logic 1000 times and consider - * multi homed, one to many, many to one (marketing) - * etc, etc, before changing - */ - if (self_check(hostp)) { - if (self_check(host)) { - if ((strcmp(bmp, pri) == 0) || - (strcmp(bmp, bit) == 0)) { - rdc_set_error(NULL, - RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", "bitmap" - " %s is in use by %s"), - bmp, RDC_NAME_DU_JOUR); - ret = 1; - goto done; - } - } else { - if ((strcmp(hostp, shost) == 0) && - (strcmp(bmp, sec) == 0) || - (strcmp(bmp, sbm) == 0)) { - rdc_set_error(NULL, - RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", "bitmap" - " %s is in use by %s"), - bmp, RDC_NAME_DU_JOUR); - ret = 1; - goto done; - } - } - } else { /* self_check(hostp) failed */ - if (self_check(host)) { - if ((strcmp(shost, hostp) == 0) && - (strcmp(bmp, sec) == 0) || - (strcmp(bmp, sbm) == 0)) { - rdc_set_error(NULL, - RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", "bitmap" - " %s is in use by %s"), - bmp, RDC_NAME_DU_JOUR); - ret = 1; - goto done; - } - } else { - if ((strcmp(host, hostp) == 0) && - (strcmp(bmp, pri) == 0) || - (strcmp(bmp, bit) == 0)) { - rdc_set_error(NULL, - RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", "bitmap" - " %s is in use by %s"), - bmp, RDC_NAME_DU_JOUR); - ret = 1; - goto done; - } - } - } - - } - - } -done: - cfg_close(cfg); - return (ret); - -} - -int -check_dgislocal(char *dgname) -{ - char *othernode; - int rc; - - /* - * check where this disk service is mastered - */ - - rc = cfg_dgname_islocal(dgname, &othernode); - if (rc < 0) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("unable to find " - "disk service, %s: %s"), dgname, strerror(errno)); - return (-1); - } - - if (rc == 0) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("disk service, %s, is " - "active on node \"%s\"\nPlease re-issue " - "the command on that node"), dgname, othernode); - return (-1); - } - return (DCMD_OK); -} - -int -ctag_check(rdcconfig_t *rdc) -{ - char *file_dgname; - char *bmp_dgname; - char *fromhost, *tohost; - char *fromfile, *tofile; - char *frombitmap, *tobitmap; - char *localfile; - char *ctag; - char file_buf[MAX_RDC_HOST_SIZE]; - char bmp_buf[MAX_RDC_HOST_SIZE]; - int is_primary; - int islocal = 0; - struct hostent *hp; - char fromname[MAXHOSTNAMELEN], toname[MAXHOSTNAMELEN]; - - fromhost = rdc->phost; - fromfile = rdc->pfile; - frombitmap = rdc->pbmp; - tohost = rdc->shost; - tofile = rdc->sfile; - tobitmap = rdc->sbmp; - ctag = rdc->ctag; - - /* - * Check for the special (local) cluster tag - */ - if (!cfg_iscluster()) - return (0); - - if (ctag != NULL && strcmp(rdc->ctag, RDC_LOCAL_TAG) == 0) { - strcpy(rdc->ctag, "-"); - islocal = TRUE; - } else { - islocal = FALSE; - } - - hp = gethost_byname(fromhost); - strncpy(fromname, hp->h_name, MAXHOSTNAMELEN); - hp = gethost_byname(tohost); - strncpy(toname, hp->h_name, MAXHOSTNAMELEN); - if (!self_check(fromname) && !self_check(toname)) { - /* - * If we could get a list of logical hosts on this cluster - * then we could print something intelligent about where - * the volume is mastered. For now, just print some babble - * about the fact that we have no idea. - */ - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("either %s:%s or %s:%s is not local"), - fromhost, fromfile, tohost, tofile); - return (-1); - } - - is_primary = self_check(fromname); - - /* - * If implicit disk group name and no ctag specified by user, - * we set the ctag to it. - * If implicit disk group name, it must match any supplied ctag. - */ - if (is_primary) - localfile = fromfile; - else - localfile = tofile; - file_dgname = cfg_dgname(localfile, file_buf, sizeof (file_buf)); - if (file_dgname != NULL && file_dgname[0] != '\0') - if (check_dgislocal(file_dgname) < 0) { - /* errors already set */ - return (-1); - } - - if (strlen(ctag) == 0 && file_dgname && strlen(file_dgname)) - strncpy(ctag, file_dgname, MAX_RDC_HOST_SIZE); - - /* - * making an exception here for users giving the "local"tag - * this overrides this error message. (rdc_islocal ! = 1) - */ - if (strlen(ctag) != 0 && file_dgname && islocal != 1 && - strlen(file_dgname) != 0 && - strncmp(ctag, file_dgname, MAX_RDC_HOST_SIZE) != 0) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("ctag \"%s\" does not " - "match disk group name \"%s\" of volume %s"), ctag, - file_dgname, localfile); - return (-1); - } - if ((file_dgname == NULL) || ((strlen(ctag) == 0) && - (strlen(file_dgname) == 0))) { - /* - * we must have a non-volume managed disk here - * so ask for a tag and get out - */ - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("volume \"%s\" is not part" - " of a disk group,\nplease specify resource ctag\n"), - localfile); - - } - - /* - * Local bitmap must also have same ctag. - */ - if (is_primary) - localfile = frombitmap; - else - localfile = tobitmap; - bmp_dgname = cfg_dgname(localfile, bmp_buf, sizeof (bmp_buf)); - if (bmp_dgname != NULL && bmp_dgname[0] != '\0') - if (check_dgislocal(bmp_dgname) < 0) { - /* error already set */ - return (-1); - } - - if (file_dgname && strlen(file_dgname) != 0) { - /* File is in a real disk group */ - if ((bmp_dgname == NULL) || (strlen(bmp_dgname) == 0)) { - /* Bitmap is not in a real disk group */ - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("bitmap %s is not in disk group \"%s\""), - localfile, islocal < 1?file_dgname:ctag); - return (-1); - } - } - if (strlen(ctag) != 0 && bmp_dgname && islocal != 1 && - strlen(bmp_dgname) != 0 && - strncmp(ctag, bmp_dgname, MAX_RDC_HOST_SIZE) != 0) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - gettext("ctag \"%s\" does not " - "match disk group name \"%s\" of bitmap %s"), - ctag, bmp_dgname, localfile); - return (-1); - } - - return (0); -} -int -mounted(char *device) -{ - char target[NSC_MAXPATH]; - struct mnttab mntref; - struct mnttab mntent; - FILE *mntfp; - int rdsk; - char *s; - int rc; - int i; - - rdsk = i = 0; - for (s = target; i < NSC_MAXPATH && (*s = *device++); i++) { - if (*s == 'r' && rdsk == 0 && strncmp(device, "dsk/", 4) == 0) - rdsk = 1; - else - s++; - } - *s = '\0'; - - mntref.mnt_special = target; - mntref.mnt_mountp = NULL; - mntref.mnt_fstype = NULL; - mntref.mnt_mntopts = NULL; - mntref.mnt_time = NULL; - - mntfp = fopen(MNTTAB, "r"); - - if (mntfp == NULL) { - /* Assume the worst, that it is mounted */ - return (1); - } - - if ((rc = getmntany(mntfp, &mntent, &mntref)) != -1) { - /* found something before EOF */ - fclose(mntfp); - return (1); - } - - fclose(mntfp); - return (0); -} - -int -can_enable(rdcconfig_t *rdc) -{ - struct stat stb; - - if ((strcmp(rdc->pfile, rdc->pbmp) == 0) || - (strcmp(rdc->sfile, rdc->sbmp) == 0)) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", "volumes and bitmaps must not match")); - return (0); - } - if (ctag_check(rdc) < 0) { - /* rdc_error should already be set */ - return (0); - } - - if (self_check(rdc->phost)) { - if (stat(rdc->pfile, &stb) != 0) { - rdc_set_error(NULL, RDC_OS, RDC_FATAL, NULL); - return (0); - } - if (!S_ISCHR(stb.st_mode)) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", "%s is not a character device"), - rdc->pfile); - return (0); - } - return (rdc->persist ? - !bitmap_in_use(RDC_CMD_ENABLE, rdc->phost, rdc->pbmp) : 1); - } else { /* on the secondary */ - if (stat(rdc->sfile, &stb) != 0) { - rdc_set_error(NULL, RDC_OS, 0, - dgettext("librdc", "unable to access %s: %s"), - rdc->sfile, strerror(errno)); - } - if (!S_ISCHR(stb.st_mode)) { - rdc_set_error(NULL, RDC_INTERNAL, RDC_NONFATAL, - dgettext("librdc", - "%s is not a character device"), rdc->sfile); - } - return (rdc->persist ? - !bitmap_in_use(RDC_CMD_ENABLE, rdc->shost, rdc->sbmp) : 1); - } -} - -int -can_reconfig_pbmp(rdcconfig_t *rdc, char *bmp) -{ - if (!rdc->persist) - return (0); - - return (!bitmap_in_use(RDC_CMD_RECONFIG, rdc->phost, bmp)); -} - -int -can_reconfig_sbmp(rdcconfig_t *rdc, char *bmp) -{ - if (!rdc->persist) - return (0); - - return (!bitmap_in_use(RDC_CMD_RECONFIG, rdc->shost, bmp)); -} - -rdc_rc_t * -cant_rsync(rdcconfig_t *rdc) -{ - rdc_rc_t *rc; - - if (mounted(rdc->pfile)) { - rc = new_rc(); - if (rc == NULL) - return (NULL); - strncpy(rc->set.phost, rdc->phost, MAX_RDC_HOST_SIZE); - strncpy(rc->set.pfile, rdc->pfile, NSC_MAXPATH); - strncpy(rc->set.pbmp, rdc->pbmp, NSC_MAXPATH); - strncpy(rc->set.shost, rdc->shost, MAX_RDC_HOST_SIZE); - strncpy(rc->set.sfile, rdc->sfile, NSC_MAXPATH); - strncpy(rc->set.sbmp, rdc->sbmp, NSC_MAXPATH); - - rc->rc = -1; - - rdc_set_error(NULL, RDC_INTERNAL, 0, "unable to sync %s volume" - " is currently mounted", rdc->pfile); - strncpy(rc->msg, rdc_error(NULL), RDC_ERR_SIZE); - - return (rc); - } - return (NULL); -} |