* directory or online at http://www.openafs.org/dl/license10.html
*/
+/*
+ * A general description of the supergroup changes
+ * to ptserver:
+ *
+ * In AFS users can be members of groups. When you add
+ * a user, u1, to a group, g1, you add the user id for u1
+ * to an entries list in g1. This is a list of all the
+ * members of g1.
+ * You also add the id for g1 to an entries list in u1.
+ * This is a list of all the groups this user is a
+ * member of.
+ * The list has room for 10 entries. If more are required,
+ * a continuation record is created.
+ *
+ * With UMICH mods, u1 can be a group. When u1 is a group
+ * a new field is required to list the groups this group
+ * is a member of (since the entries field is used to
+ * list it's members). This new field is supergroups and
+ * has two entries. If more are required, a continuation
+ * record is formed.
+ * There are two additional fields required, nextsg is
+ * an address of the next continuation record for this
+ * group, and countsg is the count for the number of
+ * groups this group is a member of.
+ *
+ *
+ *
+ * 09/18/95 jjm Add mdw's changes to afs-3.3a Changes:
+ * (1) Add the parameter -groupdepth or -depth to
+ * define the maximum search depth for supergroups.
+ * Define the variable depthsg to be the value of
+ * the parameter. The default value is set to 5.
+ *
+ * (3) Make sure the sizes of the struct prentry and
+ * struct prentryg are equal. If they aren't equal
+ * the pt database will be corrupted.
+ * The error is reported with an fprintf statement,
+ * but this doesn't print when ptserver is started by
+ * bos, so all you see is an error message in the
+ * /usr/afs/logs/BosLog file. If you start the
+ * ptserver without bos the fprintf will print
+ * on stdout.
+ * The program will terminate with a PT_EXIT(1).
+ *
+ *
+ * Transarc does not currently use opcodes past 520, but
+ * they *could* decide at any time to use more opcodes.
+ * If they did, then one part of our local mods,
+ * ListSupergroups, would break. I've therefore
+ * renumbered it to 530, and put logic in to enable the
+ * old opcode to work (for now).
+ *
+ * 2/1/98 jjm Add mdw's changes for bit mapping for supergroups
+ * Overview:
+ * Before fetching a supergroup, this version of ptserver
+ * checks to see if it was marked "found" and "not a
+ * member". If and only if so, it doesn't fetch the group.
+ * Since this should be the case with most groups, this
+ * should save a significant amount of CPU in redundant
+ * fetches of the same group. After fetching the group,
+ * it sets "found", and either sets or clears "not a
+ * member", depending on if the group was a member of
+ * other groups. When it writes group entries to the
+ * database, it clears the "found" flag.
+ */
+
+#if defined(SUPERGROUPS)
+/*
+ * A general description of the supergroup changes
+ * to ptserver:
+ *
+ * In AFS users can be members of groups. When you add a user, u1,
+ * to a group, g1, you add the user id for u1 to an entries list
+ * in g1. This is a list of all the members of g1. You also add
+ * the id for g1 to an entries list in u1. This is a list of all
+ * the groups this user is a member of. The list has room for 10
+ * entries. If more are required, a continuation record is created.
+ *
+ * With UMICH mods, u1 can be a group. When u1 is a group a new
+ * field is required to list the groups this group is a member of
+ * (since the entries field is used to list it's members). This
+ * new field is supergroups and has two entries. If more are
+ * required, a continuation record is formed.
+ *
+ * There are two additional fields required, nextsg is an address
+ * of the next continuation record for this group, and countsg is
+ * the count for the number of groups this group is a member of.
+ *
+ * Bit mapping support for supergroups:
+ *
+ * Before fetching a supergroup, this version of ptserver checks to
+ * see if it was marked "found" and "not a member". If and only if
+ * so, it doesn't fetch the group. Since this should be the case
+ * with most groups, this should save a significant amount of CPU in
+ * redundant fetches of the same group. After fetching the group, it
+ * sets "found", and either sets or clears "not a member", depending
+ * on if the group was a member of other groups. When it writes
+ * group entries to the database, it clears the "found" flag.
+ */
+#endif
+
#include <afsconfig.h>
#include <afs/param.h>
struct ubik_dbase *dbase;
struct afsconf_dir *prdir;
+#if defined(SUPERGROUPS)
+extern afs_int32 depthsg;
+#endif
+
extern afs_int32 ubik_lastYesTime;
extern afs_int32 ubik_nBuffers;
pr_dbaseName = AFSDIR_SERVER_PRDB_FILEPATH;
+#if defined(SUPERGROUPS)
+ /* make sure the structures for database records are the same size */
+ if((sizeof(struct prentry) != ENTRYSIZE) ||
+ (sizeof(struct prentryg) != ENTRYSIZE)) {
+ fprintf(stderr,"The structures for the database records are different"
+ " sizes\n"
+ "struct prentry = %d\n"
+ "struct prentryg = %d\n"
+ "ENTRYSIZE = %d\n",
+ sizeof(struct prentry), sizeof(struct prentryg),
+ ENTRYSIZE);
+ PT_EXIT(1);
+ }
+#endif
+
for (a=1; a<argc; a++) {
int alen;
lcstring (arg, argv[a], sizeof(arg));
}
}
else if (strncmp (arg, "-rebuild", alen) == 0) /* rebuildDB++ */ ;
+#if defined(SUPERGROUPS)
+ else if ((strncmp (arg, "-groupdepth", alen) == 0) ||
+ (strncmp (arg, "-depth", alen) == 0)) {
+ depthsg = atoi(argv[++a]); /* Max search depth for supergroups */
+ }
+#endif
else if (strncmp (arg, "-enable_peer_stats", alen) == 0) {
rx_enablePeerRPCStats();
}
else if (*arg == '-') {
/* hack in help flag support */
+#if defined(SUPERGROUPS)
#ifndef AFS_NT40_ENV
printf ("Usage: ptserver [-database <db path>] "
"[-syslog[=FACILITY]] "
"[-p <number of processes>] [-rebuild] "
+ "[-groupdepth <depth>] "
"[-enable_peer_stats] [-enable_process_stats] "
"[-help]\n");
+#else /* AFS_NT40_ENV */
+ printf ("Usage: ptserver [-database <db path>] "
+ "[-p <number of processes>] [-rebuild] "
+ "[-groupdepth <depth>] "
+ "[-help]\n");
+#endif
#else
+#ifndef AFS_NT40_ENV
printf ("Usage: ptserver [-database <db path>] "
+ "[-syslog[=FACILITY]] "
"[-p <number of processes>] [-rebuild] "
+ "[-enable_peer_stats] [-enable_process_stats] "
"[-help]\n");
+#else /* AFS_NT40_ENV */
+ printf ("Usage: ptserver [-database <db path>] "
+ "[-p <number of processes>] [-rebuild] "
+ "[-help]\n");
+#endif
#endif
fflush(stdout);
PT_EXIT(1);
}
+#if defined(SUPERGROUPS)
+ else {
+ fprintf (stderr, "Unrecognized arg: '%s' ignored!\n", arg);
+ }
+#endif
}
OpenLog(AFSDIR_SERVER_PTLOG_FILEPATH); /* set up logging */
com_err (whoami, code, "Ubik init failed");
PT_EXIT(2);
}
+
+#if defined(SUPERGROUPS)
+ pt_hook_write();
+#endif
+
sc[0] = rxnull_NewServerSecurityObject();
sc[1] = 0;
if (kerberosKeys) {
rx_StartServer(1);
osi_audit (PTS_FinishEvent, -1, AUD_END);
+ exit(0);
}
git://git.openafs.org / openafs.git / blobdiff