void PDB_deleteGroup(int32_t id)
{
PDB_HANDLE h;
PDB_profile r,p;
int32_t nextid;
pdb_array_off off;
h=PDB_db_open(O_RDWR);
PDB_readProfile(h, id, &r);
if(r.id == 0){
PDB_db_close(h);
return;
}
PDB_deleteProfile(h, &r);
/* remove from owner's list */
PDB_readProfile(h, r.owner_id, &p);
CODA_ASSERT(p.id != 0);
pdb_array_del(&(p.groups_or_members), id);
PDB_writeProfile(h, &p);
PDB_freeProfile(&p);
/* remove from groups if memberof */
nextid = pdb_array_head(&(r.member_of), &off);
while(nextid != 0){
PDB_readProfile(h, nextid, &p);
CODA_ASSERT(p.id == 0);
pdb_array_del(&(p.groups_or_members), id);
PDB_writeProfile(h, &p);
PDB_freeProfile(&p);
nextid = pdb_array_next(&(r.member_of), &off);
}
/* remove from members */
nextid = pdb_array_head(&(r.groups_or_members), &off);
while(nextid != 0){
PDB_readProfile(h, nextid, &p);
CODA_ASSERT(p.id != 0);
pdb_array_del(&(p.member_of), id);
PDB_updateCps(h, &p);
PDB_freeProfile(&p);
nextid = pdb_array_next(&(r.groups_or_members), &off);
}
/* Now fix the owner's cps */
PDB_readProfile(h, r.owner_id, &p);
CODA_ASSERT(p.id != 0);
PDB_updateCps(h, &p);
PDB_freeProfile(&p);
PDB_freeProfile(&r);
PDB_db_close(h);
}
void PDB_removeFromGroup(int32_t id, int32_t groupId)
{
PDB_HANDLE h;
PDB_profile r;
/* sanity check arguments (groupId must be < 0) */
CODA_ASSERT(PDB_ISGROUP(groupId) && (id != 0));
h = PDB_db_open(O_RDWR);
/* remove id from the group's member list */
PDB_readProfile(h, groupId, &r);
CODA_ASSERT(r.id != 0);
pdb_array_del(&(r.groups_or_members), id);
PDB_writeProfile(h, &r);
PDB_freeProfile(&r);
/* remove groupId from user's member_of list */
PDB_readProfile(h, id, &r);
CODA_ASSERT(r.id != 0);
pdb_array_del(&(r.member_of), groupId);
PDB_updateCps(h, &r);
PDB_freeProfile(&r);
PDB_db_close(h);
}
/* UPDATE USER OR GROUP */
void tool_update(int argc, char *argv[])
{
long arg1;
PDB_HANDLE h;
PDB_profile p;
if (check_args_num(argc, 2)) {
printf(
"Usage: u id/name\n"
"id/name\t\tid or name of user/group\n");
return;
}
h = PDB_db_open(O_RDWR);
arg1 = get_id(argv[1]);
if (arg1 == 0) {
printf("%s not found.\n", argv[1]);
return;
}
PDB_readProfile(h, arg1, &p);
if (p.id != 0) {
PDB_updateCps(h, &p);
PDB_freeProfile(&p);
}
PDB_db_close(h);
}
void PDB_cloneUser(char *name, int32_t cloneid, int32_t *newId)
{
PDB_HANDLE h;
int32_t nextid, maxId, minGroupId;
PDB_profile r, p;
pdb_array_off off;
/* sanity check arguments */
CODA_ASSERT(name && (name[0] != '\0') && newId && (cloneid != 0));
/* MAKE SURE NO USER WITH THAT NAME ALREADY EXISTS */
CODA_ASSERT(PDB_nameInUse(name) == 0);
h=PDB_db_open(O_RDWR);
/* Read the profile we are cloning */
PDB_readProfile(h, cloneid, &r);
CODA_ASSERT(r.id != 0);
/* add one to the highest user id -- that's our new user's id */
PDB_db_maxids(h, &maxId, &minGroupId);
r.id = maxId + 1;
PDB_db_update_maxids(h, r.id, minGroupId, PDB_MAXID_SET);
/* CREATE A NEW USER WITH SPECIFIED NAME, ALL OTHER FIELDS EMPTY */
/* create the new user's profile */
free(r.name);
r.name = strdup(name);
/* MAKE THE NEW USER A MEMBER OF THE SAME GROUPS AS THE OLD USER */
nextid = pdb_array_head(&(r.member_of), &off);
while(nextid != 0){
PDB_readProfile(h, nextid, &p);
CODA_ASSERT(r.id != 0);
pdb_array_add(&(p.groups_or_members), r.id);
PDB_writeProfile(h, &p);
PDB_freeProfile(&p);
nextid = pdb_array_next(&(r.member_of), &off);
}
/* updateCps also writes the new user's information to the databases */
PDB_updateCps(h, &r);
PDB_db_close(h);
*newId = r.id;
PDB_freeProfile(&r);
}
/* Updates the CPS entries of the given id and the CPS entries of its children*/
void PDB_updateCps(PDB_HANDLE h, PDB_profile *r)
{
PDB_profile p, c;
int32_t nextid;
pdb_array_off off;
CODA_ASSERT(r != NULL);
/* Update the CPS entry of the given id */
pdb_array_free(&(r->cps));
/* Add the CPS of parents into list */
nextid = pdb_array_head(&(r->member_of), &off);
while(nextid != 0){
PDB_readProfile(h, nextid, &p);
if(p.id != 0) {
pdb_array_merge(&(r->cps), &(p.cps));
PDB_freeProfile(&p);
}
nextid = pdb_array_next(&(r->member_of), &off);
}
/* Add self to list */
pdb_array_add(&(r->cps), r->id);
/* write the updated CPS */
PDB_writeProfile(h, r);
/* Update the CPS entries of the given id's children's CPS entries */
if (!PDB_ISGROUP(r->id)) return;
/* Add the CPS of parents into list */
nextid = pdb_array_head(&(r->groups_or_members), &off);
while(nextid != 0){
PDB_readProfile(h, nextid, &c);
if (c.id != 0) {
/* Recurse through all children */
PDB_updateCps(h, &c);
PDB_freeProfile(&c);
}
nextid = pdb_array_next(&(r->groups_or_members), &off);
}
}
void PDB_addToGroup(int32_t id, int32_t groupId)
{
PDB_HANDLE h;
PDB_profile r;
int n;
/* sanity check arguments */
CODA_ASSERT(PDB_ISGROUP(groupId) && (id != 0));
h = PDB_db_open(O_RDWR);
/* add id to the group's member list */
PDB_readProfile(h, groupId, &r);
CODA_ASSERT(r.id != 0);
/* make sure we don't introduce an infinite loop */
n = pdb_array_search(&(r.cps), id);
if (n != -1) {
fprintf(stderr, "Cannot add %d, it is already a parent of %d\n",
id, groupId);
PDB_freeProfile(&r);
return;
}
pdb_array_add(&(r.groups_or_members), id);
PDB_writeProfile(h, &r);
PDB_freeProfile(&r);
/* add groupId to user's member_of list */
PDB_readProfile(h, id, &r);
CODA_ASSERT(r.id != 0);
pdb_array_add(&(r.member_of), groupId);
PDB_updateCps(h, &r);
PDB_freeProfile(&r);
PDB_db_close(h);
}
void PDB_changeId(int32_t oldId, int32_t newId)
{
PDB_HANDLE h;
PDB_profile r,p;
void *tmp;
size_t size;
int32_t nextid;
pdb_array_off off;
if (oldId == newId) return;
h = PDB_db_open(O_RDWR);
PDB_db_read(h, newId, NULL, &tmp, &size);
pdb_unpack(&r, tmp, size);
CODA_ASSERT(r.id == 0);
PDB_readProfile(h, oldId, &r);
CODA_ASSERT(r.id != 0);
/* Delete the old id */
PDB_deleteProfile(h, &r);
/* Change the id */
r.id = newId;
PDB_updateCps(h, &r);
if(PDB_ISGROUP(oldId)){
/* Need to change owner info */
PDB_readProfile(h, r.owner_id, &p);
CODA_ASSERT(p.id != 0);
pdb_array_del(&(p.groups_or_members), oldId);
pdb_array_add(&(p.groups_or_members), newId);
PDB_writeProfile(h, &p);
PDB_db_update_maxids(h, 0, newId, PDB_MAXID_SET);
PDB_freeProfile(&p);
}
else
PDB_db_update_maxids(h, newId, 0, PDB_MAXID_SET);
/* update groups we are a member of */
nextid = pdb_array_head(&(r.member_of), &off);
while(nextid != 0){
PDB_readProfile(h, nextid, &p);
CODA_ASSERT(p.id != 0);
pdb_array_del(&(p.groups_or_members), oldId);
pdb_array_add(&(p.groups_or_members), newId);
/* Don't need CPS updates */
PDB_writeProfile(h, &p);
PDB_freeProfile(&p);
nextid = pdb_array_next(&(r.member_of), &off);
}
/* update members or ownership */
nextid = pdb_array_head(&(r.groups_or_members), &off);
while(nextid != 0) {
PDB_readProfile(h, nextid, &p);
CODA_ASSERT(p.id != 0);
if (PDB_ISGROUP(oldId)) {
pdb_array_del(&(p.member_of), oldId);
pdb_array_add(&(p.member_of), newId);
} else {
if (PDB_ISGROUP(p.id)) {
if(p.owner_id == oldId)
p.owner_id = newId;
}
}
PDB_updateCps(h, &p);
PDB_freeProfile(&p);
nextid = pdb_array_next(&(r.groups_or_members), &off);
}
PDB_db_close(h);
PDB_freeProfile(&r);
}
void PDB_bugfixes(void)
{
PDB_HANDLE h;
/* fixups for old bugs */
int32_t id;
pdb_array_off off;
int rc, n;
PDB_profile p, r;
h = PDB_db_open(O_RDWR);
while ( (rc = PDB_db_nextkey(h, &id)) ) {
if ( rc == -1 ) continue;
PDB_readProfile(h, id, &p);
CODA_ASSERT(p.id != 0);
if (PDB_ISGROUP(p.id)) {
/* BUG: forgot to update owner_id when changing a user's uid */
PDB_lookupByName(p.owner_name, &id);
if (p.owner_id != id) {
fprintf(stderr, "Group %d owner name %s didn't match owner id %d, FIXED\n", p.id, p.owner_name, p.owner_id);
p.owner_id = id;
PDB_writeProfile(h, &p);
}
/* BUG: we added userid's to a group's member_of list */
again:
id = pdb_array_head(&p.member_of, &off);
while(id != 0) {
if (PDB_ISUSER(id)) {
pdb_array_del(&p.member_of, id);
PDB_updateCps(h, &p);
fprintf(stderr, "Group %d was listed as a member of userid %d, FIXED\n", p.id, id);
goto again;
}
id = pdb_array_next(&p.member_of, &off);
}
/* BUG: we forgot to change userid's in a group's groups_or_members
* list (fix part 1, removes non-existing or non-member
* userids) */
again2:
id = pdb_array_head(&p.groups_or_members, &off);
while(id != 0) {
if (PDB_ISUSER(id)) {
PDB_readProfile(h, id, &r);
CODA_ASSERT(r.id != 0);
n = pdb_array_search(&r.member_of, p.id);
if (n == -1) {
pdb_array_del(&p.groups_or_members, id);
PDB_updateCps(h, &p);
PDB_freeProfile(&r);
fprintf(stderr, "Group %d had nonexisting member %d, FIXED\n", p.id, id);
goto again2;
}
PDB_freeProfile(&r);
}
id = pdb_array_next(&p.groups_or_members, &off);
}
}
else /* PDB_ISUSER(p.id) */
{
/* BUG: we forgot to change userid's in a group's groups_or_members
* list (fix part 2, adds missing members to groups)*/
id = pdb_array_head(&p.member_of, &off);
while (id != 0) {
if (PDB_ISGROUP(id)) {
PDB_readProfile(h, id, &r);
CODA_ASSERT(r.id != 0);
n = pdb_array_search(&r.groups_or_members, p.id);
if (n == -1) {
pdb_array_add(&r.groups_or_members, p.id);
PDB_updateCps(h, &r);
fprintf(stderr, "Group %d was missing member %d, FIXED\n", id, p.id);
}
PDB_freeProfile(&r);
}
id = pdb_array_next(&p.member_of, &off);
}
}
PDB_freeProfile(&p);
}
PDB_db_close(h);
/* iterate through the whole database again and this time make sure that
* all the CPS arrays are consistent. */
h = PDB_db_open(O_RDWR);
while ( (rc = PDB_db_nextkey(h, &id)) ) {
if ( rc == -1 ) continue;
PDB_readProfile(h, id, &p);
if (p.id == 0) continue;
PDB_updateCps(h, &p);
PDB_freeProfile(&p);
}
PDB_db_close(h);
}
