#include <linux/key.h>
#include "../include/obd.h"
-#include "../include/obd_class.h"
#include "../include/obd_support.h"
-#include "../include/lustre_net.h"
#include "../include/lustre_import.h"
-#include "../include/lustre_log.h"
-#include "../include/lustre_disk.h"
-#include "../include/lustre_dlm.h"
#include "../include/lustre_param.h"
#include "../include/lustre_sec.h"
}
EXPORT_SYMBOL(sptlrpc_rule_set_dump);
-static int sptlrpc_rule_set_extract(struct sptlrpc_rule_set *gen,
- struct sptlrpc_rule_set *tgt,
- enum lustre_sec_part from,
- enum lustre_sec_part to,
- struct sptlrpc_rule_set *rset)
-{
- struct sptlrpc_rule_set *src[2] = { gen, tgt };
- struct sptlrpc_rule *rule;
- int i, n, rc;
-
- might_sleep();
-
- /* merge general rules firstly, then target-specific rules */
- for (i = 0; i < 2; i++) {
- if (src[i] == NULL)
- continue;
-
- for (n = 0; n < src[i]->srs_nrule; n++) {
- rule = &src[i]->srs_rules[n];
-
- if (from != LUSTRE_SP_ANY &&
- rule->sr_from != LUSTRE_SP_ANY &&
- rule->sr_from != from)
- continue;
- if (to != LUSTRE_SP_ANY &&
- rule->sr_to != LUSTRE_SP_ANY &&
- rule->sr_to != to)
- continue;
-
- rc = sptlrpc_rule_set_merge(rset, rule);
- if (rc) {
- CERROR("can't merge: %d\n", rc);
- return rc;
- }
- }
- }
-
- return 0;
-}
-
/**********************************
* sptlrpc configuration support *
**********************************/
}
EXPORT_SYMBOL(sptlrpc_conf_client_adapt);
-
-static void rule2string(struct sptlrpc_rule *r, char *buf, int buflen)
-{
- char dirbuf[8];
- char *net;
- char *ptr = buf;
-
- if (r->sr_netid == LNET_NIDNET(LNET_NID_ANY))
- net = "default";
- else
- net = libcfs_net2str(r->sr_netid);
-
- if (r->sr_from == LUSTRE_SP_ANY && r->sr_to == LUSTRE_SP_ANY)
- dirbuf[0] = '\0';
- else
- snprintf(dirbuf, sizeof(dirbuf), ".%s2%s",
- sptlrpc_part2name(r->sr_from),
- sptlrpc_part2name(r->sr_to));
-
- ptr += snprintf(buf, buflen, "srpc.flavor.%s%s=", net, dirbuf);
-
- sptlrpc_flavor2name(&r->sr_flvr, ptr, buflen - (ptr - buf));
- buf[buflen - 1] = '\0';
-}
-
-static int sptlrpc_record_rule_set(struct llog_handle *llh,
- char *target,
- struct sptlrpc_rule_set *rset)
-{
- struct lustre_cfg_bufs bufs;
- struct lustre_cfg *lcfg;
- struct llog_rec_hdr rec;
- int buflen;
- char param[48];
- int i, rc;
-
- for (i = 0; i < rset->srs_nrule; i++) {
- rule2string(&rset->srs_rules[i], param, sizeof(param));
-
- lustre_cfg_bufs_reset(&bufs, NULL);
- lustre_cfg_bufs_set_string(&bufs, 1, target);
- lustre_cfg_bufs_set_string(&bufs, 2, param);
- lcfg = lustre_cfg_new(LCFG_SPTLRPC_CONF, &bufs);
- LASSERT(lcfg);
-
- buflen = lustre_cfg_len(lcfg->lcfg_bufcount,
- lcfg->lcfg_buflens);
- rec.lrh_len = llog_data_len(buflen);
- rec.lrh_type = OBD_CFG_REC;
- rc = llog_write(NULL, llh, &rec, NULL, 0, (void *)lcfg, -1);
- if (rc)
- CERROR("failed to write a rec: rc = %d\n", rc);
- lustre_cfg_free(lcfg);
- }
- return 0;
-}
-
-static int sptlrpc_record_rules(struct llog_handle *llh,
- struct sptlrpc_conf *conf)
-{
- struct sptlrpc_conf_tgt *conf_tgt;
-
- sptlrpc_record_rule_set(llh, conf->sc_fsname, &conf->sc_rset);
-
- list_for_each_entry(conf_tgt, &conf->sc_tgts, sct_list) {
- sptlrpc_record_rule_set(llh, conf_tgt->sct_name,
- &conf_tgt->sct_rset);
- }
- return 0;
-}
-
-#define LOG_SPTLRPC_TMP "sptlrpc.tmp"
-#define LOG_SPTLRPC "sptlrpc"
-
-static
-int sptlrpc_target_local_copy_conf(struct obd_device *obd,
- struct sptlrpc_conf *conf)
-{
- struct llog_handle *llh = NULL;
- struct llog_ctxt *ctxt;
- struct lvfs_run_ctxt saved;
- struct dentry *dentry;
- int rc;
-
- ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- if (ctxt == NULL)
- return -EINVAL;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- dentry = ll_lookup_one_len(MOUNT_CONFIGS_DIR, cfs_fs_pwd(current->fs),
- strlen(MOUNT_CONFIGS_DIR));
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot lookup %s directory: rc = %d\n",
- MOUNT_CONFIGS_DIR, rc);
- GOTO(out_ctx, rc);
- }
-
- /* erase the old tmp log */
- rc = llog_erase(NULL, ctxt, NULL, LOG_SPTLRPC_TMP);
- if (rc < 0 && rc != -ENOENT) {
- CERROR("%s: cannot erase temporary sptlrpc log: rc = %d\n",
- obd->obd_name, rc);
- GOTO(out_dput, rc);
- }
-
- /* write temporary log */
- rc = llog_open_create(NULL, ctxt, &llh, NULL, LOG_SPTLRPC_TMP);
- if (rc)
- GOTO(out_dput, rc);
- rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL);
- if (rc)
- GOTO(out_close, rc);
-
- rc = sptlrpc_record_rules(llh, conf);
-
-out_close:
- llog_close(NULL, llh);
- if (rc == 0)
- rc = lustre_rename(dentry, obd->obd_lvfs_ctxt.pwdmnt,
- LOG_SPTLRPC_TMP, LOG_SPTLRPC);
-out_dput:
- l_dput(dentry);
-out_ctx:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- CDEBUG(D_SEC, "target %s: write local sptlrpc conf: rc = %d\n",
- obd->obd_name, rc);
- return rc;
-}
-
-static int local_read_handler(const struct lu_env *env,
- struct llog_handle *llh,
- struct llog_rec_hdr *rec, void *data)
-{
- struct sptlrpc_conf *conf = (struct sptlrpc_conf *) data;
- struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
- int cfg_len, rc;
-
- if (rec->lrh_type != OBD_CFG_REC) {
- CERROR("unhandled lrh_type: %#x\n", rec->lrh_type);
- return -EINVAL;
- }
-
- cfg_len = rec->lrh_len - sizeof(struct llog_rec_hdr) -
- sizeof(struct llog_rec_tail);
-
- rc = lustre_cfg_sanity_check(lcfg, cfg_len);
- if (rc) {
- CERROR("Insane cfg\n");
- return rc;
- }
-
- if (lcfg->lcfg_command != LCFG_SPTLRPC_CONF) {
- CERROR("invalid command (%x)\n", lcfg->lcfg_command);
- return -EINVAL;
- }
-
- return __sptlrpc_process_config(lcfg, conf);
-}
-
-static
-int sptlrpc_target_local_read_conf(struct obd_device *obd,
- struct sptlrpc_conf *conf)
-{
- struct llog_handle *llh = NULL;
- struct llog_ctxt *ctxt;
- struct lvfs_run_ctxt saved;
- int rc;
-
- LASSERT(conf->sc_updated == 0 && conf->sc_local == 0);
-
- ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
- if (ctxt == NULL) {
- CERROR("missing llog context\n");
- return -EINVAL;
- }
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- rc = llog_open(NULL, ctxt, &llh, NULL, LOG_SPTLRPC, LLOG_OPEN_EXISTS);
- if (rc < 0) {
- if (rc == -ENOENT)
- rc = 0;
- GOTO(out_pop, rc);
- }
-
- rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL);
- if (rc)
- GOTO(out_close, rc);
-
- if (llog_get_size(llh) <= 1) {
- CDEBUG(D_SEC, "no local sptlrpc copy found\n");
- GOTO(out_close, rc = 0);
- }
-
- rc = llog_process(NULL, llh, local_read_handler, (void *)conf, NULL);
-
- if (rc == 0) {
- conf->sc_local = 1;
- } else {
- sptlrpc_conf_free_rsets(conf);
- }
-
-out_close:
- llog_close(NULL, llh);
-out_pop:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- llog_ctxt_put(ctxt);
- CDEBUG(D_SEC, "target %s: read local sptlrpc conf: rc = %d\n",
- obd->obd_name, rc);
- return rc;
-}
-
-
-/**
- * called by target devices, extract sptlrpc rules which applies to
- * this target, to be used for future rpc flavor checking.
- */
-int sptlrpc_conf_target_get_rules(struct obd_device *obd,
- struct sptlrpc_rule_set *rset,
- int initial)
-{
- struct sptlrpc_conf *conf;
- struct sptlrpc_conf_tgt *conf_tgt;
- enum lustre_sec_part sp_dst;
- char fsname[MTI_NAME_MAXLEN];
- int rc = 0;
-
- if (strcmp(obd->obd_type->typ_name, LUSTRE_MDT_NAME) == 0) {
- sp_dst = LUSTRE_SP_MDT;
- } else if (strcmp(obd->obd_type->typ_name, LUSTRE_OST_NAME) == 0) {
- sp_dst = LUSTRE_SP_OST;
- } else {
- CERROR("unexpected obd type %s\n", obd->obd_type->typ_name);
- return -EINVAL;
- }
- CDEBUG(D_SEC, "get rules for target %s\n", obd->obd_uuid.uuid);
-
- target2fsname(obd->obd_uuid.uuid, fsname, sizeof(fsname));
-
- mutex_lock(&sptlrpc_conf_lock);
-
- conf = sptlrpc_conf_get(fsname, 0);
- if (conf == NULL) {
- CERROR("missing sptlrpc config log\n");
- GOTO(out, rc);
- }
-
- if (conf->sc_updated == 0) {
- /*
- * always read from local copy. here another option is
- * if we already have a local copy (read from another
- * target device hosted on the same node) we simply use that.
- */
- if (conf->sc_local)
- sptlrpc_conf_free_rsets(conf);
-
- sptlrpc_target_local_read_conf(obd, conf);
- } else {
- LASSERT(conf->sc_local == 0);
-
- /* write a local copy */
- if (initial || conf->sc_modified)
- sptlrpc_target_local_copy_conf(obd, conf);
- else
- CDEBUG(D_SEC, "unchanged, skip updating local copy\n");
- }
-
- /* extract rule set for this target */
- conf_tgt = sptlrpc_conf_get_tgt(conf, obd->obd_name, 0);
-
- rc = sptlrpc_rule_set_extract(&conf->sc_rset,
- conf_tgt ? &conf_tgt->sct_rset : NULL,
- LUSTRE_SP_ANY, sp_dst, rset);
-out:
- mutex_unlock(&sptlrpc_conf_lock);
- return rc;
-}
-EXPORT_SYMBOL(sptlrpc_conf_target_get_rules);
-
int sptlrpc_conf_init(void)
{
mutex_init(&sptlrpc_conf_lock);
projects / openwrt / staging / blogic.git / commitdiff