-/* $Header$ */
-/* $Source$ */
-
-
+/* Copyright (C) 1989 Transarc Corporation - All rights reserved */
/*
* P_R_P_Q_# (C) COPYRIGHT IBM CORPORATION 1988
* LICENSED MATERIALS - PROPERTY OF IBM
* REFER TO COPYRIGHT INSTRUCTIONS FORM NUMBER G120-2083
*/
+#ifndef lint
+static char rcsid[] = "$Header$";
+#endif
+
/*
Sherri Nichols
Information Technology Center
*/
+#include <afs/param.h>
+#include <sys/types.h>
#include <stdio.h>
-#include <strings.h>
#include <lock.h>
-#define UBIK_INTERNALS
+#include <netinet/in.h>
#include <ubik.h>
#include <rx/xdr.h>
-#include "print.h"
-#include "prserver.h"
-#include "prerror.h"
-#include <netinet/in.h>
+#include <afs/com_err.h>
+#include "ptserver.h"
+#include "pterror.h"
+#include <strings.h>
-extern struct prheader cheader;
extern struct ubik_dbase *dbase;
extern struct afsconf_dir *prdir;
+extern int pr_noAuth;
-long CreateEntry(at, aname, aid, idflag,flag,oid,creator)
-register struct ubik_trans *at;
-char aname[PR_MAXNAMELEN];
-long *aid;
-long idflag;
-long flag;
-long oid;
-long creator;
+static char *whoami = "ptserver";
+
+/* CorrectUserName - Check to make sure a user name is OK. It must not include
+ * either a colon (or it would look like a group) or an atsign (or it would
+ * look like a foreign user). The length is checked as well to make sure
+ * that the user name, an atsign, and the local cell name will fit in
+ * PR_MAXNAMELEN. This is so this user can fit in another cells database as
+ * a foreign user with our cell name tacked on. This is a predicate, so it
+ * return one if name is OK and zero if name is bogus. */
+
+static int CorrectUserName (name)
+ char *name;
+{
+ extern int pr_realmNameLen;
+
+ if (index (name, ':') || index(name, '@') || index(name, '\n')) return 0;
+ if (strlen (name) >= PR_MAXNAMELEN - pr_realmNameLen - 1) return 0;
+ return 1;
+}
+
+static long CorrectGroupName (ut, aname, cid, oid, cname)
+ struct ubik_trans *ut;
+ char aname[PR_MAXNAMELEN]; /* name for group */
+ long cid; /* caller id */
+ long oid; /* owner of group */
+ char cname[PR_MAXNAMELEN]; /* correct name for group */
+{
+ long code;
+ int admin;
+ char *prefix; /* ptr to group owner part */
+ char *suffix; /* ptr to group name part */
+ char name[PR_MAXNAMELEN]; /* correct name for group */
+ struct prentry tentry;
+
+ if (strlen (aname) >= PR_MAXNAMELEN) return PRBADNAM;
+ admin = pr_noAuth || IsAMemberOf (ut, cid, SYSADMINID);
+
+ if (oid == 0) oid = cid;
+
+ /* Determine the correct prefix for the name. */
+ if (oid == SYSADMINID) prefix = "system";
+ else {
+ long loc = FindByID (ut, oid);
+ if (loc == 0) {
+ /* let admin create groups owned by non-existent ids (probably
+ * setting a group to own itself). Check that they look like
+ * groups (with a colon) or otherwise are good user names. */
+ if (admin) {
+ strcpy (cname, aname);
+ goto done;
+ }
+ return PRNOENT;
+ }
+ code = pr_Read (ut, 0, loc, &tentry, sizeof(tentry));
+ if (code) return code;
+ if (ntohl(tentry.flags) & PRGRP) {
+ if ((tentry.count == 0) && !admin) return PRGROUPEMPTY;
+ /* terminate prefix at colon if there is one */
+ if (prefix = index(tentry.name, ':')) *prefix = 0;
+ }
+ prefix = tentry.name;
+ }
+ /* only sysadmin allow to use 'system:' prefix */
+ if ((strcmp (prefix, "system") == 0) && !admin) return PRPERM;
+
+ strcpy (name, aname); /* in case aname & cname are same */
+ suffix = index(name, ':');
+ if (suffix == 0) {
+ /* sysadmin can make groups w/o ':', but they must still look like
+ * legal user names. */
+ if (!admin) return PRBADNAM;
+ strcpy (cname, name);
+ }
+ else {
+ if (strlen(prefix)+strlen(suffix) >= PR_MAXNAMELEN) return PRBADNAM;
+ strcpy (cname, prefix);
+ strcat (cname, suffix);
+ }
+ done:
+ /* check for legal name with either group rules or user rules */
+ if (suffix = index(cname, ':')) {
+ /* check for confusing characters */
+ if (index(cname, '@') || /* avoid confusion w/ foreign users */
+ index(cname, '\n') || /* restrict so recreate can work */
+ index(suffix+1, ':')) /* avoid multiple colons */
+ return PRBADNAM;
+ } else {
+ if (!CorrectUserName (cname)) return PRBADNAM;
+ }
+ return 0;
+}
+
+int AccessOK (ut, cid, tentry, mem, any)
+ struct ubik_trans *ut;
+ long cid; /* caller id */
+ struct prentry *tentry; /* object being accessed */
+ int mem; /* check membership in aid, if group */
+ int any; /* if set return true */
+{ long flags;
+ long oid;
+ long aid;
+
+ if (pr_noAuth) return 1;
+ if (tentry) {
+ flags = tentry->flags;
+ oid = tentry->owner;
+ aid = tentry->id;
+ } else {
+ flags = oid = aid = 0;
+ }
+ if (!(flags & PRACCESS)) /* provide default access */
+ if (flags & PRGRP)
+ flags |= PRP_GROUP_DEFAULT;
+ else
+ flags |= PRP_USER_DEFAULT;
+
+ if (flags & any) return 1;
+ if (oid) {
+ if ((cid == oid) ||
+ IsAMemberOf (ut, cid, oid)) return 1;
+ }
+ if (aid > 0) { /* checking on a user */
+ if (aid == cid) return 1;
+ } else if (aid < 0) { /* checking on group */
+ if ((flags & mem) && IsAMemberOf (ut, cid, aid)) return 1;
+ }
+ if (IsAMemberOf (ut, cid, SYSADMINID)) return 1;
+ return 0; /* no access */
+}
+
+long CreateEntry (at, aname, aid, idflag, flag, oid, creator)
+ register struct ubik_trans *at;
+ char aname[PR_MAXNAMELEN];
+ long *aid;
+ long idflag;
+ long flag;
+ long oid;
+ long creator;
{
/* get and init a new entry */
register long code;
struct prentry tentry;
bzero(&tentry, sizeof(tentry));
+
+ if ((oid == 0) || (oid == ANONYMOUSID)) oid = creator;
+
+ if (flag & PRGRP) {
+ code = CorrectGroupName (at, aname, creator, oid, tentry.name);
+ if (code) return code;
+ if (strcmp (aname, tentry.name) != 0) return PRBADNAM;
+ } else { /* non-group must not have colon */
+ if (!CorrectUserName(aname)) return PRBADNAM;
+ strcpy (tentry.name, aname);
+ }
+
+ if (FindByName(at,aname)) return PREXIST;
+
newEntry = AllocBlock(at);
if (!newEntry) return PRDBFAIL;
+#ifdef PR_REMEMBER_TIMES
+ tentry.createTime = time(0);
+#endif
if (flag & PRGRP) {
tentry.flags |= PRGRP;
tentry.owner = oid;
if (code != PRSUCCESS) return code;
}
if (flag & PRGRP) {
- if (tentry.id < ntohl(cheader.maxGroup)) {
- cheader.maxGroup = htonl(tentry.id);
- code = pr_Write(at,0,16,(char *) &cheader.maxGroup,sizeof(cheader.maxGroup));
+ /* group ids are negative */
+ if (tentry.id < (long)ntohl(cheader.maxGroup)) {
+ code = set_header_word (at, maxGroup, htonl(tentry.id));
if (code) return PRDBFAIL;
}
}
else if (flag & PRFOREIGN) {
- if (tentry.id > ntohl(cheader.maxForeign)) {
- cheader.maxForeign = htonl(tentry.id);
- code = pr_Write(at,0,24,(char *) &cheader.maxForeign,sizeof(cheader.maxForeign));
+ if (tentry.id > (long)ntohl(cheader.maxForeign)) {
+ code = set_header_word (at, maxForeign, htonl(tentry.id));
if (code) return PRDBFAIL;
}
}
else {
- if (tentry.id > ntohl(cheader.maxID)) {
- cheader.maxID = htonl(tentry.id);
- code = pr_Write(at,0,20,(char *) &cheader.maxID,sizeof(cheader.maxID));
+ if (tentry.id > (long)ntohl(cheader.maxID)) {
+ code = set_header_word (at, maxID, htonl(tentry.id));
if (code) return PRDBFAIL;
}
}
+ /* PRACCESS is off until set, defaults provided in AccessOK */
+ if (flag == 0) { /* only normal users get quota */
+ tentry.flags |= PRQUOTA;
+ tentry.ngroups = tentry.nusers = 20;
+ }
+
+ if (flag & (PRGRP | PRFOREIGN)) {
+ long loc = FindByID (at, creator);
+ struct prentry centry;
+ long *nP; /* ptr to entry to be decremented */
+ long n; /* quota to check */
+
+ if (loc) { /* this should only fail during initialization */
+ code = pr_Read (at, 0, loc, ¢ry, sizeof(centry));
+ if (code) return code;
+
+ if (flag & PRGRP) nP = ¢ry.ngroups;
+ else if (flag & PRFOREIGN) nP = ¢ry.nusers;
+ else nP = 0;
+
+ if (nP) {
+ if (!(ntohl(centry.flags) & PRQUOTA)) {
+ /* quota uninitialized, so do it now */
+ centry.flags = htonl (ntohl(centry.flags) | PRQUOTA);
+ centry.ngroups = centry.nusers = htonl(20);
+ }
+ n = ntohl(*nP);
+ if (n <= 0) {
+ if (!pr_noAuth &&
+ !IsAMemberOf (at, creator, SYSADMINID))
+ return PRNOMORE;
+ }
+ else *nP = htonl(n-1);
+ }
+ code = pr_Write (at, 0, loc, ¢ry, sizeof(centry));
+ if (code) return code;
+ } /* if (loc) */
+ } /* need to check creation quota */
tentry.creator = creator;
*aid = tentry.id;
- strncpy(tentry.name, aname, PR_MAXNAMELEN);
code = pr_WriteEntry(at, 0, newEntry, &tentry);
if (code) return PRDBFAIL;
code = AddToIDHash(at,*aid,newEntry);
if (code) return code;
}
if (tentry.flags & PRGRP) {
- temp = ntohl(cheader.groupcount) + 1;
- cheader.groupcount = htonl(temp);
- code = pr_Write(at,0,40,(char *)&cheader.groupcount,sizeof(cheader.groupcount));
- if (code) return PRDBFAIL;
+ if (inc_header_word (at, groupcount, 1)) return PRDBFAIL;
}
else if (tentry.flags & PRFOREIGN) {
- temp = ntohl(cheader.foreigncount) + 1;
- cheader.foreigncount = htonl(temp);
- code = pr_Write(at,0,44,(char *)&cheader.foreigncount,sizeof(cheader.foreigncount));
- if (code) return PRDBFAIL;
+ if (inc_header_word (at, foreigncount, 1)) return PRDBFAIL;
}
else if (tentry.flags & PRINST) {
- temp = ntohl(cheader.instcount) + 1;
- cheader.instcount = htonl(temp);
- code = pr_Write(at,0,48,(char *)&cheader.instcount,sizeof(cheader.instcount));
- if (code) return PRDBFAIL;
+ if (inc_header_word (at, instcount, 1)) return PRDBFAIL;
}
else {
- temp = ntohl(cheader.usercount) + 1;
- cheader.usercount = htonl(temp);
- code = pr_Write(at,0,36,(char *)&cheader.usercount,sizeof(cheader.usercount));
- if (code) return PRDBFAIL;
+ if (inc_header_word (at, usercount, 1)) return PRDBFAIL;
}
return PRSUCCESS;
}
+/* RemoveFromEntry - remove aid from bid's entries list, freeing a continuation
+ * entry if appropriate */
-long RemoveFromEntry(at,aid,bid)
-register struct ubik_trans *at;
-register long aid;
-register long bid;
+long RemoveFromEntry (at, aid, bid)
+ register struct ubik_trans *at;
+ register long aid;
+ register long bid;
{
- /* remove aid from bid's entries list, freeing a continuation entry if appropriate */
-
register long code;
struct prentry tentry;
struct contentry centry;
struct contentry hentry;
long temp;
- long first;
long i,j;
long nptr;
- long hloc = 0;
+ long hloc;
+ if (aid == bid) return PRINCONSISTENT;
bzero(&hentry,sizeof(hentry));
temp = FindByID(at,bid);
+ if (temp == 0) return PRNOENT;
code = pr_ReadEntry(at, 0, temp, &tentry);
if (code != 0) return code;
+#ifdef PR_REMEMBER_TIMES
+ tentry.removeTime = time(0);
+#endif
for (i=0;i<PRSIZE;i++) {
if (tentry.entries[i] == aid) {
tentry.entries[i] = PRBADID;
if (tentry.entries[i] == 0) /* found end of list */
return PRNOENT;
}
- if (tentry.next != NULL) {
- nptr = tentry.next;
- first = 1;
- while (nptr != NULL) {
- code = pr_ReadCoEntry(at,0,nptr,¢ry);
- if (code != 0) return code;
- for (i=0;i<COSIZE;i++) {
- if (centry.entries[i] == aid) {
- centry.entries[i] = PRBADID;
- tentry.count--;
- code = pr_WriteEntry(at,0,temp,&tentry);
- if (code) return PRDBFAIL;
- for (j=0;j<COSIZE;j++)
- if (centry.entries[j] != PRBADID && centry.entries[j] != 0) break;
- if (j == COSIZE) { /* can free this block */
- if (first) {
- tentry.next = centry.next;
- code = pr_WriteEntry(at,0,temp,&tentry);
- if (code != 0) return code;
- }
- else {
- hentry.next = centry.next;
- code = pr_WriteCoEntry(at,0,hloc,(char *) &hentry);
- if (code != 0) return code;
- }
- code = FreeBlock(at,nptr);
- return code;
+ hloc = 0;
+ nptr = tentry.next;
+ while (nptr != NULL) {
+ code = pr_ReadCoEntry(at,0,nptr,¢ry);
+ if (code != 0) return code;
+ if ((centry.id != bid) || !(centry.flags & PRCONT)) return PRDBBAD;
+ for (i=0;i<COSIZE;i++) {
+ if (centry.entries[i] == aid) {
+ centry.entries[i] = PRBADID;
+ for (j=0;j<COSIZE;j++)
+ if (centry.entries[j] != PRBADID &&
+ centry.entries[j] != 0) break;
+ if (j == COSIZE) { /* can free this block */
+ if (hloc == 0) {
+ tentry.next = centry.next;
}
- else { /* can't free it yet */
- code = pr_WriteCoEntry(at,0,nptr,¢ry);
+ else {
+ hentry.next = centry.next;
+ code = pr_WriteCoEntry (at, 0, hloc, &hentry);
if (code != 0) return code;
- return PRSUCCESS;
}
+ code = FreeBlock (at, nptr);
+ if (code) return code;
}
- if (centry.entries[i] == 0) return PRNOENT;
+ else { /* can't free it yet */
+ code = pr_WriteCoEntry(at,0,nptr,¢ry);
+ if (code != 0) return code;
+ }
+ tentry.count--;
+ code = pr_WriteEntry(at,0,temp,&tentry);
+ if (code) return PRDBFAIL;
+ return 0;
}
- hloc = nptr;
- nptr = centry.next;
- bcopy(¢ry,&hentry,sizeof(centry));
- }
- }
- else return PRNOENT;
- return PRSUCCESS;
+ if (centry.entries[i] == 0) return PRNOENT;
+ } /* for all coentry slots */
+ hloc = nptr;
+ nptr = centry.next;
+ bcopy(¢ry,&hentry,sizeof(centry));
+ } /* while there are coentries */
+ return PRNOENT;
}
-long DeleteEntry(at,aid,cid)
-register struct ubik_trans *at;
-long aid;
-long cid;
+/* DeleteEntry - delete the entry in tentry at loc, removing it from all
+ * groups, putting groups owned by it on orphan chain, and freeing the space */
+
+long DeleteEntry (at, tentry, loc)
+ register struct ubik_trans *at;
+ struct prentry *tentry;
+ long loc;
{
- /* delete the entry aid, removing it from all groups, putting groups owned by it on orphan chain, and freeing the space */
register long code;
- long temp;
long temp1;
- struct prentry tentry;
struct contentry centry;
struct prentry nentry;
register long i;
long nptr;
- long noAuth;
-
- noAuth = afsconf_GetNoAuthFlag(prdir);
- bzero(&tentry,sizeof(tentry));
- temp = FindByID(at,aid);
- if (!temp) return PRNOENT;
- code = pr_ReadEntry(at,0,temp,&tentry);
- if (code != 0) return PRDBFAIL;
- if (tentry.owner != cid && !IsAMemberOf(at,cid,SYSADMINID) && !IsAMemberOf(at,cid,tentry.owner) && !noAuth) return PRPERM;
+
+ /* First remove the entire membership list */
for (i=0;i<PRSIZE;i++) {
- if (tentry.entries[i] == 0) break;
- RemoveFromEntry(at,aid,tentry.entries[i]);
+ if (tentry->entries[i] == PRBADID) continue;
+ if (tentry->entries[i] == 0) break;
+ code = RemoveFromEntry (at, tentry->id, tentry->entries[i]);
+ if (code) return code;
}
- nptr = tentry.next;
+ nptr = tentry->next;
while (nptr != NULL) {
code = pr_ReadCoEntry(at,0,nptr,¢ry);
if (code != 0) return PRDBFAIL;
for (i=0;i<COSIZE;i++) {
+ if (centry.entries[i] == PRBADID) continue;
if (centry.entries[i] == 0) break;
- RemoveFromEntry(at,aid,centry.entries[i]);
+ code = RemoveFromEntry (at, tentry->id, centry.entries[i]);
+ if (code) return code;
}
+ code = FreeBlock (at, nptr); /* free continuation block */
+ if (code) return code;
nptr = centry.next;
}
- if (tentry.flags & PRGRP) {
- if (FindByID(at,tentry.owner)) {
- code = RemoveFromOwnerChain(at,aid,tentry.owner);
+
+ /* Remove us from other's owned chain. Note that this will zero our owned
+ * field (on disk) so this step must follow the above step in case we are
+ * on our own owned list. */
+ if (tentry->flags & PRGRP) {
+ if (tentry->owner) {
+ code = RemoveFromOwnerChain (at, tentry->id, tentry->owner);
if (code) return code;
}
else {
- code = RemoveFromOrphan(at,aid);
+ code = RemoveFromOrphan (at, tentry->id);
if (code) return code;
}
}
- if (tentry.owned) {
- nptr = tentry.owned;
- while (nptr != NULL) {
- code = pr_ReadEntry(at,0,nptr,&nentry);
- if (code != 0) return PRDBFAIL;
- if (nentry.id != aid) /* don't add this entry to orphan chain! */
- code = AddToOrphan(at,nentry.id);
- nptr = nentry.nextOwned;
- }
- }
- code = RemoveFromIDHash(at,tentry.id,&temp);
+
+ code = RemoveFromIDHash(at,tentry->id,&loc);
if (code != PRSUCCESS) return code;
- code = RemoveFromNameHash(at,tentry.name,&temp);
+ code = RemoveFromNameHash(at,tentry->name,&loc);
if (code != PRSUCCESS) return code;
- if (tentry.flags & PRGRP) {
- temp1 = ntohl(cheader.groupcount) + 1;
- cheader.groupcount = htonl(temp1);
- code = pr_Write(at,0,40,(char *)&cheader.groupcount,sizeof(cheader.groupcount));
- if (code) return PRDBFAIL;
+
+ if (tentry->flags & (PRGRP | PRFOREIGN)) {
+ long loc = FindByID (at, tentry->creator);
+ struct prentry centry;
+ if (loc) {
+ code = pr_Read (at, 0, loc, ¢ry, sizeof(centry));
+ if (code) return code;
+ if (ntohl(centry.flags) & PRQUOTA) {
+ if (tentry->flags & PRGRP) {
+ centry.ngroups = htonl(ntohl(centry.ngroups) + 1);
+ } else if (tentry->flags & PRFOREIGN) {
+ centry.nusers = htonl(ntohl(centry.nusers) + 1);
+ }
+ }
+ code = pr_Write (at, 0, loc, ¢ry, sizeof(centry));
+ if (code) return code;
+ }
}
- else if (tentry.flags & PRFOREIGN) {
- temp1 = ntohl(cheader.foreigncount) + 1;
- cheader.foreigncount = htonl(temp1);
- code = pr_Write(at,0,44,(char *)&cheader.foreigncount,sizeof(cheader.foreigncount));
- if (code) return PRDBFAIL;
+
+ if (tentry->flags & PRGRP) {
+ if (inc_header_word (at, groupcount, -1)) return PRDBFAIL;
}
- else if (tentry.flags & PRINST) {
- temp1 = ntohl(cheader.instcount) + 1;
- cheader.instcount = htonl(temp1);
- code = pr_Write(at,0,48,(char *)&cheader.instcount,sizeof(cheader.instcount));
- if (code) return PRDBFAIL;
+ else if (tentry->flags & PRFOREIGN) {
+ if (inc_header_word (at, foreigncount, -1)) return PRDBFAIL;
+ }
+ else if (tentry->flags & PRINST) {
+ if (inc_header_word (at, instcount, -1)) return PRDBFAIL;
}
else {
- temp1 = ntohl(cheader.usercount) + 1;
- cheader.usercount = htonl(temp1);
- code = pr_Write(at,0,36,(char *)&cheader.usercount,sizeof(cheader.usercount));
- if (code) return PRDBFAIL;
+ if (inc_header_word (at, usercount, -1)) return PRDBFAIL;
}
- FreeBlock(at,temp);
- return PRSUCCESS;
+ code = FreeBlock(at, loc);
+ return code;
}
+/* AddToEntry - add aid to entry's entries list, alloc'ing a continuation block
+ * if needed.
+ *
+ * Note the entry is written out by this routine. */
-
-
-long AddToEntry(tt,entry,loc,aid)
-struct ubik_trans *tt;
-struct prentry entry;
-long loc;
-long aid;
+long AddToEntry (tt, entry, loc, aid)
+ struct ubik_trans *tt;
+ struct prentry *entry;
+ long loc;
+ long aid;
{
- /* add aid to entry's entries list, alloc'ing a continuation block if needed */
register long code;
long i;
struct contentry nentry;
struct contentry aentry;
long nptr;
- long last = 0;
+ long last; /* addr of last cont. block */
long first = 0;
long cloc;
long slot = -1;
- bzero(&nentry,sizeof(nentry));
- bzero(&aentry,sizeof(aentry));
+ if (entry->id == aid) return PRINCONSISTENT;
+#ifdef PR_REMEMBER_TIMES
+ entry->addTime = time(0);
+#endif
for (i=0;i<PRSIZE;i++) {
- if (entry.entries[i] == aid)
+ if (entry->entries[i] == aid)
return PRIDEXIST;
- if (entry.entries[i] == PRBADID) { /* remember this spot */
+ if (entry->entries[i] == PRBADID) { /* remember this spot */
first = 1;
slot = i;
}
- if (entry.entries[i] == 0) { /* end of the line */
+ else if (entry->entries[i] == 0) { /* end of the line */
if (slot == -1) {
first = 1;
slot = i;
break;
}
}
- nptr = entry.next;
+ last = 0;
+ nptr = entry->next;
while (nptr != NULL) {
- code = pr_ReadCoEntry(tt,0,nptr,&nentry);
+ code = pr_ReadCoEntry(tt,0,nptr,&nentry);
if (code != 0) return code;
+ last = nptr;
if (!(nentry.flags & PRCONT)) return PRDBFAIL;
for (i=0;i<COSIZE;i++) {
if (nentry.entries[i] == aid)
cloc = nptr;
}
}
- if (nentry.entries[i] == 0) {
+ else if (nentry.entries[i] == 0) {
if (slot == -1) {
slot = i;
cloc = nptr;
break;
}
}
- last = nptr;
nptr = nentry.next;
}
- if (slot != -1) { /* we found a place */
- entry.count++;
+ if (slot != -1) { /* we found a place */
+ entry->count++;
if (first) { /* place is in first block */
- entry.entries[slot] = aid;
- code = pr_WriteEntry(tt,0,loc,&entry);
+ entry->entries[slot] = aid;
+ code = pr_WriteEntry (tt, 0, loc, entry);
if (code != 0) return code;
return PRSUCCESS;
}
- code = pr_WriteEntry(tt,0,loc,&entry);
+ code = pr_WriteEntry (tt, 0, loc, entry);
+ if (code) return code;
code = pr_ReadCoEntry(tt,0,cloc,&aentry);
if (code != 0) return code;
aentry.entries[slot] = aid;
}
/* have to allocate a continuation block if we got here */
nptr = AllocBlock(tt);
- if (nentry.flags & PRCONT) {
- /* then we should tack new block here */
+ if (last) {
+ /* then we should tack new block after last block in cont. chain */
nentry.next = nptr;
code = pr_WriteCoEntry(tt,0,last,&nentry);
if (code != 0) return code;
}
else {
- entry.next = nptr;
- code = pr_WriteEntry(tt,0,loc,&entry);
- if (code != 0) return code;
+ entry->next = nptr;
}
+ bzero(&aentry,sizeof(aentry));
aentry.flags |= PRCONT;
- aentry.id = entry.id;
+ aentry.id = entry->id;
aentry.next = NULL;
aentry.entries[0] = aid;
code = pr_WriteCoEntry(tt,0,nptr,&aentry);
if (code != 0) return code;
/* don't forget to update count, here! */
- entry.count++;
- code = pr_WriteEntry(tt,0,loc,&entry);
- return PRSUCCESS;
+ entry->count++;
+ code = pr_WriteEntry (tt, 0, loc, entry);
+ return code;
}
-long GetList(at,aid,alist,add)
-struct ubik_trans *at;
-long aid;
-prlist *alist;
-long add;
+long AddToPRList (alist, sizeP, id)
+ prlist *alist;
+ int *sizeP;
+ long id;
+{
+ if (alist->prlist_len >= PR_MAXGROUPS) return PRTOOMANY;
+ if (alist->prlist_len >= *sizeP) {
+ *sizeP = *sizeP + 100;
+ if (*sizeP > PR_MAXGROUPS) *sizeP = PR_MAXGROUPS;
+ alist->prlist_val =
+ (long *) ((alist->prlist_val) ?
+ realloc (alist->prlist_val, (*sizeP)*sizeof(long)) :
+ malloc ((*sizeP)*sizeof(long)));
+ }
+ alist->prlist_val[alist->prlist_len++] = id;
+ return 0;
+}
+
+long GetList (at, tentry, alist, add)
+ struct ubik_trans *at;
+ struct prentry *tentry;
+ prlist *alist;
+ long add;
{
register long code;
- long temp;
long i;
- long count;
- struct prentry tentry;
struct contentry centry;
long nptr;
- long size;
+ int size;
+ int count = 0;
extern long IDCmp();
- temp = FindByID(at,aid);
- if (!temp) return PRNOENT;
- code = pr_ReadEntry(at,0,temp,&tentry);
- if (code != 0) return code;
- alist->prlist_val = (long *)malloc(100*sizeof(long));
- size = 100;
+ size = 0;
+ alist->prlist_val = 0;
alist->prlist_len = 0;
- count = 0;
+
for (i=0;i<PRSIZE;i++) {
- if (tentry.entries[i] == PRBADID) continue;
- if (tentry.entries[i] == 0) break;
- alist->prlist_val[count]= tentry.entries[i];
- count++;
- alist->prlist_len++;
+ if (tentry->entries[i] == PRBADID) continue;
+ if (tentry->entries[i] == 0) break;
+ code = AddToPRList (alist, &size, tentry->entries[i]);
+ if (code) return code;
}
- nptr = tentry.next;
+
+ nptr = tentry->next;
while (nptr != NULL) {
/* look through cont entries */
code = pr_ReadCoEntry(at,0,nptr,¢ry);
for (i=0;i<COSIZE;i++) {
if (centry.entries[i] == PRBADID) continue;
if (centry.entries[i] == 0) break;
- if (alist->prlist_len >= size) {
- alist->prlist_val = (long *)realloc(alist->prlist_val,(size+100)*sizeof(long));
- size += 100;
- }
- alist->prlist_val[count] = centry.entries[i];
- count++;
- alist->prlist_len++;
+ code = AddToPRList (alist, &size, centry.entries[i]);
+ if (code) return code;
}
nptr = centry.next;
+ if (count++ > 50) IOMGR_Poll(), count = 0;
}
+
if (add) { /* this is for a CPS, so tack on appropriate stuff */
- if (aid != ANONYMOUSID && aid != ANYUSERID) {
- if (alist->prlist_len >= size)
- alist->prlist_val = (long *)realloc(alist->prlist_val,(size + 3)*sizeof(long));
- alist->prlist_val[count] = ANYUSERID;
- count++;
- alist->prlist_val[count] = AUTHUSERID;
- count++;
- alist->prlist_val[count] = aid;
- count++;
- alist->prlist_len += 3;
+ if (tentry->id != ANONYMOUSID && tentry->id != ANYUSERID) {
+ if ((code = AddToPRList (alist, &size, ANYUSERID)) ||
+ (code = AddToPRList (alist, &size, AUTHUSERID)) ||
+ (code = AddToPRList (alist, &size, tentry->id))) return code;
}
else {
- if (alist->prlist_len >= size)
- alist->prlist_val = (long *)realloc(alist->prlist_val,(size + 2)*sizeof(long));
- alist->prlist_val[count] = ANYUSERID;
- count++;
- alist->prlist_val[count] = aid;
- count++;
- alist->prlist_len += 2;
+ if ((code = AddToPRList (alist, &size, ANYUSERID)) ||
+ (code = AddToPRList (alist, &size, tentry->id))) return code;
}
}
+ if (alist->prlist_len > 100) IOMGR_Poll();
+ qsort(alist->prlist_val,alist->prlist_len,sizeof(long),IDCmp);
+ return PRSUCCESS;
+}
+
+long GetOwnedChain (ut, next, alist)
+ struct ubik_trans *ut;
+ long next;
+ prlist *alist;
+{ register long code;
+ struct prentry tentry;
+ int size;
+ int count = 0;
+
+ size = 0;
+ alist->prlist_val = 0;
+ alist->prlist_len = 0;
+
+ while (next) {
+ code = pr_Read (ut, 0, next, &tentry, sizeof(tentry));
+ if (code) return code;
+ code = AddToPRList (alist, &size, ntohl(tentry.id));
+ if (code) return code;
+ next = ntohl(tentry.nextOwned);
+ if (count++ > 50) IOMGR_Poll(), count = 0;
+ }
+ if (alist->prlist_len > 100) IOMGR_Poll();
qsort(alist->prlist_val,alist->prlist_len,sizeof(long),IDCmp);
return PRSUCCESS;
}
return PRSUCCESS;
}
-Initdb()
+int pr_noAuth;
+
+long Initdb()
{
long code;
struct ubik_trans *tt;
long len;
- long temp;
- long flag = 0;
static long initd=0;
+#if 0
static struct ubik_version curver;
struct ubik_version newver;
- struct ubik_hdr header;
+#endif
/* init the database. We'll try reading it, but if we're starting from scratch, we'll have to do a write transaction. */
+ pr_noAuth = afsconf_GetNoAuthFlag(prdir);
+
code = ubik_BeginTrans(dbase,UBIK_READTRANS, &tt);
if (code) return code;
code = ubik_SetLock(tt,1,1,LOCKREAD);
}
if (!initd) {
initd = 1;
+#if 0
bzero(&curver,sizeof(curver));
+#endif
+ } else if (!ubik_CacheUpdate (tt)) {
+ code = ubik_EndTrans(tt);
+ return code;
+ }
+#if 0
+ code = ubik_GetVersion(tt,&newver);
+ if (vcmp(curver,newver) == 0) {
+ /* same version */
+ code = ubik_EndTrans(tt);
+ if (code) return code;
+ return PRSUCCESS;
}
+ bcopy(&newver,&curver,sizeof(struct ubik_version));
+#endif
+
len = sizeof(cheader);
code = pr_Read(tt, 0, 0, (char *) &cheader, len);
if (code != 0) {
- printf("prserver: couldn't read header -code is %d\n",code);
+ com_err (whoami, code, "couldn't read header");
ubik_AbortTrans(tt);
return code;
}
- if (ntohl(cheader.headerSize) == sizeof(cheader) && ntohl(cheader.eofPtr) != NULL && FindByID(tt,ANONYMOUSID) != 0){
+ if ((ntohl(cheader.version) == PRDBVERSION) &&
+ ntohl(cheader.headerSize) == sizeof(cheader) &&
+ ntohl(cheader.eofPtr) != NULL &&
+ FindByID(tt,ANONYMOUSID) != 0){
/* database exists, so we don't have to build it */
code = ubik_EndTrans(tt);
if (code) return code;
/* else we need to build a database */
code = ubik_EndTrans(tt);
if (code) return code;
- fprintf(stderr, "Creating new database\n");
+
+ /* Only rebuild database if the db was deleted (the header is zero) and we
+ are running noAuth. */
+ { char *bp = (char *)&cheader;
+ int i;
+ for (i=0; i<sizeof(cheader); i++)
+ if (bp[i]) {
+ code = PRDBBAD;
+ com_err (whoami, code,
+ "Can't rebuild database because it is not empty");
+ return code;
+ }
+ }
+ if (!pr_noAuth) {
+ code = PRDBBAD;
+ com_err (whoami, code,
+ "Can't rebuild database because not running NoAuth");
+ return code;
+ }
+
code = ubik_BeginTrans(dbase,UBIK_WRITETRANS, &tt);
if (code) return code;
code = ubik_SetLock(tt,1,1,LOCKWRITE);
ubik_AbortTrans(tt);
return code;
}
- header.magic = htonl(UBIK_MAGIC);
- header.pad1 = 0;
- header.size = 0;
- header.version.epoch = header.version.counter = htonl(1);
- code = pr_Write(tt, 0, -(HDRSIZE), (char *)&header, sizeof(header));
- if (code != 0) {
- printf("prserver: couldn't write ubik header - code is %d.\n", code);
- return code;
- }
- cheader.headerSize = htonl(sizeof(cheader));
- code = pr_Write(tt,0,4,(char *)&cheader.headerSize,sizeof(cheader.headerSize));
- if (code != 0) {
- printf("prserver: couldn't write header size - code is %d.\n",code);
+
+ /* Initialize the database header */
+
+ if ((code = set_header_word (tt, version, htonl(PRDBVERSION))) ||
+ (code = set_header_word (tt, headerSize, htonl(sizeof(cheader)))) ||
+ (code = set_header_word (tt, eofPtr, cheader.headerSize))) {
+ com_err (whoami, code, "couldn't write header words");
ubik_AbortTrans(tt);
return code;
}
- cheader.eofPtr = cheader.headerSize; /* already in network order! */
- code = pr_Write(tt,0,12,(char *)&cheader.eofPtr,sizeof(cheader.eofPtr));
- if (code != 0) {
- printf("prserver: couldn't write eof Ptr - code is %d.\n",code);
+
+#define InitialGroup(id,name) do { \
+ long temp = (id); \
+ long flag = (id) < 0 ? PRGRP : 0; \
+ code = CreateEntry \
+ (tt, (name), &temp, /*idflag*/1, flag, SYSADMINID, SYSADMINID); \
+ if (code) { \
+ com_err (whoami, code, "couldn't create %s with id %di.", \
+ (name), (id)); \
+ ubik_AbortTrans(tt); \
+ return code; \
+ } \
+} while (0)
+
+ InitialGroup (SYSADMINID, "system:administrators");
+ InitialGroup (ANYUSERID, "system:anyuser");
+ InitialGroup (AUTHUSERID, "system:authuser");
+ InitialGroup (ANONYMOUSID, "anonymous");
+
+ /* Well, we don't really want the max id set to anonymousid, so we'll set
+ * it back to 0 */
+ code = set_header_word (tt, maxID, 0); /* correct in any byte order */
+ if (code) {
+ com_err (whoami, code, "couldn't reset max id");
ubik_AbortTrans(tt);
return code;
}
- temp = SYSADMINID;
- if (FindByID(tt,SYSADMINID) == 0) {
- /* init sysadmin */
- flag |= PRGRP;
- code = CreateEntry(tt,"system:administrators",&temp,1,flag,SYSADMINID,SYSADMINID);
- if (code != PRSUCCESS) {
- printf("prserver: couldn't create system:administrators.\n");
- ubik_AbortTrans(tt);
- return code;
- }
- flag = 0;
- }
- temp = ANYUSERID;
- if ( FindByID(tt,temp) == 0) { /* init sysadmin */
- flag |= PRGRP;
- code = CreateEntry(tt,"system:anyuser",&temp,1,flag,SYSADMINID,SYSADMINID);
- if (code != PRSUCCESS) {
- printf("prserver: couldn't create system:anyuser.\n");
- ubik_AbortTrans(tt);
- return code;
- }
- flag = 0;
- }
- temp = AUTHUSERID;
- if (FindByID(tt,temp) == 0) { /* init sysadmin */
- flag |= PRGRP;
- code = CreateEntry(tt,"system:authuser",&temp,1,flag,SYSADMINID,SYSADMINID);
- if (code != PRSUCCESS) {
- printf("prserver: couldn't create system:authuser.\n");
- ubik_AbortTrans(tt);
- return code;
- }
- flag = 0;
- }
- temp = ANONYMOUSID;
- if (FindByID(tt,temp) == 0) { /* init sysadmin */
- code = CreateEntry(tt,"anonymous",&temp,1,flag,SYSADMINID,SYSADMINID);
- if (code != PRSUCCESS) {
- printf("prserver: couldn't create anonymous.\n");
- ubik_AbortTrans(tt);
- return code;
- }
- /* well, we don't really want the max id set to anonymousid, so we'll set it back to 0 */
- cheader.maxID = 0; /* Zero is in correct byte order no matter what! */
- code = pr_Write(tt,0,20,(char *)&cheader.maxID,sizeof(cheader.maxID));
- if (code) {
- printf("prserver: couldn't set max id - code is %d.\n");
- ubik_AbortTrans(tt);
- return code;
- }
- }
+
code = ubik_EndTrans(tt);
if (code) return code;
return PRSUCCESS;
}
-long NameToID(at, aname, aid)
-register struct ubik_trans *at;
-char aname[PR_MAXNAMELEN];
-long *aid;
-{
- register long code;
- long temp;
- struct prentry tentry;
-
- temp = FindByName(at,aname);
- if (!temp) return PRNOENT;
- code = pr_ReadEntry(at, 0, temp, &tentry);
- if (code != 0) return code;
- *aid = tentry.id;
- return PRSUCCESS;
-}
-
-long IDToName(at, aid, aname)
-register struct ubik_trans *at;
-long aid;
-char aname[PR_MAXNAMELEN];
-{
- long temp;
- struct prentry tentry;
- register long code;
-
- temp = FindByID(at,aid);
- if (!temp) return PRNOENT;
- code = pr_ReadEntry(at,0,temp,&tentry);
- if (code != 0) return code;
- strncpy(aname,tentry.name,PR_MAXNAMELEN);
- return PRSUCCESS;
-}
-
-long ChangeEntry(at, aid,cid,name,oid,newid)
-struct ubik_trans *at;
-long aid;
-long cid;
-char *name;
-long oid;
-long newid;
+long ChangeEntry (at, aid, cid, name, oid, newid)
+ struct ubik_trans *at;
+ long aid;
+ long cid;
+ char *name;
+ long oid;
+ long newid;
{
register long code;
long pos;
struct prentry tentry;
long loc;
- long noAuth;
- char *check;
- long tid;
+ long oldowner;
char holder[PR_MAXNAMELEN];
char temp[PR_MAXNAMELEN];
+ char oldname[PR_MAXNAMELEN];
- noAuth = afsconf_GetNoAuthFlag(prdir);
bzero(holder,PR_MAXNAMELEN);
bzero(temp,PR_MAXNAMELEN);
loc = FindByID(at,aid);
if (!loc) return PRNOENT;
code = pr_ReadEntry(at,0,loc,&tentry);
if (code) return PRDBFAIL;
- if (tentry.owner != cid && !IsAMemberOf(at,cid,SYSADMINID) && !IsAMemberOf(at,cid,tentry.owner) && !noAuth)
- return PRPERM;
- if (aid != newid && newid != 0) { /* then we're actually trying to change the id */
+ if (tentry.owner != cid &&
+ !IsAMemberOf(at,cid,SYSADMINID) &&
+ !IsAMemberOf(at,cid,tentry.owner) &&
+ !pr_noAuth) return PRPERM;
+#ifdef PR_REMEMBER_TIMES
+ tentry.changeTime = time(0);
+#endif
+
+ /* we're actually trying to change the id */
+ if (aid != newid && newid != 0) {
+ if (!IsAMemberOf(at,cid,SYSADMINID) && !pr_noAuth) return PRPERM;
pos = FindByID(at,newid);
if (pos) return PRIDEXIST; /* new id already in use! */
if ((aid < 0 && newid) > 0 || (aid > 0 && newid < 0)) return PRPERM;
if (code != PRSUCCESS) return code;
tentry.id = newid;
code = pr_WriteEntry(at,0,loc,&tentry);
+ if (code) return code;
code = AddToIDHash(at,tentry.id,loc);
if (code) return code;
+ /* get current data */
+ code = pr_ReadEntry(at,0,loc,&tentry);
+ if (code) return PRDBFAIL;
}
+
+ /* Change the owner */
if (tentry.owner != oid && oid) {
+ /* only groups can have their owner's changed */
+ if (!(tentry.flags & PRGRP)) return PRPERM;
+ oldowner = tentry.owner;
+ tentry.owner = oid;
+ /* The entry must be written through first so Remove and Add routines
+ * can operate on disk data */
+ code = pr_WriteEntry(at,0,loc,(char *)&tentry);
+ if (code) return PRDBFAIL;
if (tentry.flags & PRGRP) {
- /* switch owner chains before we lose old owner */
- if (FindByID(at,tentry.owner)) /* if it has an owner */
- code = RemoveFromOwnerChain(at,tentry.id,tentry.owner);
- else /* must be an orphan */
+ /* switch owner chains */
+ if (oldowner) /* if it has an owner */
+ code = RemoveFromOwnerChain(at,tentry.id,oldowner);
+ else /* must be an orphan */
code = RemoveFromOrphan(at,tentry.id);
if (code) return code;
- code = AddToOwnerChain(at,tentry.id,oid);
+ code = AddToOwnerChain(at,tentry.id,tentry.owner);
if (code) return code;
}
- tentry.owner = oid;
- if ((tentry.flags & PRGRP) && (strlen(name) == 0)) {
- /* if we change the owner of a group, it's name will change as well */
- if (tentry.owner < 0) {
- code = IDToName(at,tentry.owner,temp);
- if (code) return code;
- check = index(temp,':');
- strncpy(holder,temp,check - temp);
- }
- else {
- code = IDToName(at,tentry.owner,holder);
- if (code) return code;
- }
- strncat(holder,":",PR_MAXNAMELEN);
- /* now the rest of the name */
- check = index(tentry.name,':');
- strncat(holder,++check,PR_MAXNAMELEN);
- if (strcmp(holder,tentry.name)) {
- /* then the name really did change */
- pos = FindByName(at,holder);
- if (pos) return PREXIST;
- code = RemoveFromNameHash(at,tentry.name,&loc);
- if (code != PRSUCCESS) return code;
- strncpy(tentry.name,holder,PR_MAXNAMELEN);
- code = AddToNameHash(at,tentry.name,loc);
- if (code != PRSUCCESS) return code;
- }
- }
- code = pr_WriteEntry(at,0,loc,&tentry);
+ /* fix up the name */
+ if ((tentry.flags & PRGRP) && (strlen(name) == 0)) name = tentry.name;
+ /* get current data */
+ code = pr_ReadEntry(at,0,loc,&tentry);
if (code) return PRDBFAIL;
}
- if ((strcmp(tentry.name,name)) && (strlen(name)!= 0)) {
+
+ /* Change the name, if name is a ptr to tentry.name then this name change
+ * is due to a chown, otherwise caller has specified a new name */
+ if ((name == tentry.name) ||
+ (*name && (strcmp (tentry.name, name) != 0))) {
+ strncpy (oldname, tentry.name, PR_MAXNAMELEN);
if (tentry.flags & PRGRP) {
- if ((check = index(name,':')) == NULL) return PRBADNAM;
- strncpy(temp,name,check-name);
- code = NameToID(at,temp,&tid);
- if (tid != tentry.owner) return PRPERM;
+ code = CorrectGroupName (at, name, cid, tentry.owner, tentry.name);
+ if (code) return code;
+
+ if (name == tentry.name) { /* owner fixup */
+ if (strcmp (oldname, tentry.name) == 0) goto nameOK;
+ } else { /* new name, caller must be correct */
+ if (strcmp (name, tentry.name) != 0) return PRBADNAM;
+ }
}
else
- /* if it's not a group, shouldn't have a : in it */
- if ((check = index(name,':')) != NULL)
- return PRBADNAM;
+ if (!CorrectUserName(name)) return PRBADNAM;
+
pos = FindByName(at,name);
if (pos) return PREXIST;
- code = RemoveFromNameHash(at,tentry.name,&loc);
+ code = RemoveFromNameHash (at, oldname, &loc);
if (code != PRSUCCESS) return code;
- strncpy(tentry.name,name,PR_MAXNAMELEN);
- code = pr_WriteEntry(at,0,loc,&tentry);
+ strncpy (tentry.name, name, PR_MAXNAMELEN);
+ code = pr_WriteEntry(at,0,loc,(char *)&tentry);
if (code) return PRDBFAIL;
code = AddToNameHash(at,tentry.name,loc);
if (code != PRSUCCESS) return code;
+nameOK:;
}
return PRSUCCESS;
}
andersk / moira.git / blobdiff