[moira.git] / incremental / afs.c

/* $Header$
 *
 * Do AFS incremental updates
 *
 * Copyright (C) 1989,1992 by the Massachusetts Institute of Technology
 * for copying and distribution information, please see the file
 * <mit-copyright.h>.
 */

#include <stdio.h>
#include <sys/types.h>
#include <sys/file.h>
#include <strings.h>

#include <krb.h>
#include <moira.h>
#include <moira_site.h>

#include <afs/param.h>
#include <afs/cellconfig.h>
#include <afs/venus.h>
#include <afs/ptclient.h>
#include <afs/pterror.h>

#define STOP_FILE "/moira/afs/noafs"
#define file_exists(file) (access((file), F_OK) == 0)

#if defined(vax) && !defined(__STDC__)
#define volatile
#endif

char *whoami;

/* Main stub routines */
int do_user();
int do_list();
int do_member();
int do_filesys();
int do_quota();

/* Support stub routines */
int run_cmd();
int add_user_lists();
int add_list_members();
int check_user();
int edit_group();
int pr_try();
int check_afs();

/* libprot.a routines */
extern long pr_Initialize();
extern long pr_CreateUser();
extern long pr_CreateGroup();
extern long pr_DeleteByID();
extern long pr_ChangeEntry();
extern long pr_SetFieldsEntry();
extern long pr_AddToGroup();
extern long pr_RemoveUserFromGroup();

static char tbl_buf[1024];
static struct member {
	int op;
	char list[33];
	char type[9];
	char member[129];
	struct member *next;
} *member_head = 0;

static int mr_connections=0;

main(argc, argv)
char **argv;
int argc;
{
    int beforec, afterc, i;
    char *table, **before, **after;

    for (i = getdtablesize() - 1; i > 2; i--)
      close(i);

    whoami = ((whoami = rindex(argv[0], '/')) ? whoami++ : argv[0]);

    table = argv[1];
    beforec = atoi(argv[2]);
    before = &argv[4];
    afterc = atoi(argv[3]);
    after = &argv[4 + beforec];

    setlinebuf(stdout);

    strcpy(tbl_buf, table);
    strcat(tbl_buf, " (");
    for (i = 0; i < beforec; i++) {
	if (i > 0)
	  strcat(tbl_buf, ",");
	strcat(tbl_buf, before[i]);
    }
    strcat(tbl_buf, ")->(");
    for (i = 0; i < afterc; i++) {
	if (i > 0)
	  strcat(tbl_buf, ",");
	strcat(tbl_buf, after[i]);
    }
    strcat(tbl_buf, ")");
#ifdef DEBUG
    com_err(whoami, 0, "%s", tbl_buf);
#endif

    initialize_sms_error_table();
    initialize_krb_error_table();

    if (!strcmp(table, "users")) {
	do_user(before, beforec, after, afterc);
    } else if (!strcmp(table, "list")) {
	do_list(before, beforec, after, afterc);
    } else if (!strcmp(table, "members")) {
	do_member(before, beforec, after, afterc);
    } else if (!strcmp(table, "filesys")) {
	do_filesys(before, beforec, after, afterc);
    } else if (!strcmp(table, "quota")) {
	do_quota(before, beforec, after, afterc);
    }
    exit(0);
}


do_user(before, beforec, after, afterc)
char **before;
int beforec;
char **after;
int afterc;
{
    int astate, bstate, auid, buid, code;
    char *av[2];

    auid = buid = astate = bstate = 0;
    if (afterc > U_STATE) astate = atoi(after[U_STATE]);
    if (beforec > U_STATE) bstate = atoi(before[U_STATE]);
    if (afterc > U_UID) auid = atoi(after[U_UID]);
    if (beforec > U_UID) buid = atoi(before[U_UID]);

    /* We consider "half-registered" users to be active */
    if (astate == 2) astate = 1;
    if (bstate == 2) bstate = 1;

    if (astate != 1 && bstate != 1)		/* inactive user */
	return;

    if (astate == bstate && auid == buid && 
	!strcmp(before[U_NAME], after[U_NAME]))
	/* No AFS related attributes have changed */
	return;

    if (astate == bstate) {
	/* Only a modify has to be done */
	com_err(whoami, 0, "Changing user %s (uid %d) to %s (uid %d)",
	       before[U_NAME], buid, after[U_NAME], auid);

	code = pr_try(pr_ChangeEntry, before[U_NAME], after[U_NAME], auid, "");
	if (code) {
	    critical_alert("incremental",
			   "Couldn't change user %s (id %d) to %s (id %d): %s",
			   before[U_NAME], buid, after[U_NAME], auid,
			   error_message(code));
	}
	return;
    }
    if (bstate == 1) {
	com_err(whoami, 0, "Deleting user %s (uid %d)",
	       before[U_NAME], buid);

	code = pr_try(pr_DeleteByID, buid);
	if (code && code != PRNOENT) {
	    critical_alert("incremental",
			   "Couldn't delete user %s (id %d): %s",
			   before[U_NAME], buid, error_message(code));
	}
	return;
    }
    if (astate == 1) {
	com_err(whoami, 0, "%s user %s (uid %d)",
	       ((bstate != 0) ? "Reactivating" : "Creating"),
	       after[U_NAME], auid);
	
	code = pr_try(pr_CreateUser, after[U_NAME], &auid);
	if (code) {
	    critical_alert("incremental",
			   "Couldn't create user %s (id %d): %s",
			   after[U_NAME], auid, error_message(code));
	    return;
	}

	if (bstate != 0) {
	    /* Reactivating a user; get his group list */
	    code = moira_connect();
	    if (code) {
		critical_alert("incremental",
			       "Error contacting Moira server to retrieve grouplist of user %s: %s",
			       after[U_NAME], error_message(code));
		return;
	    }
	    av[0] = "ruser";
	    av[1] = after[U_NAME];
	    code = mr_query("get_lists_of_member", 2, av,
			    add_user_lists, after[U_NAME]);
	    if (code && code != MR_NO_MATCH)
		critical_alert("incremental",
			       "Couldn't retrieve membership of user %s: %s",
			       after[U_NAME], error_message(code));
	    moira_disconnect();
	}
	return;
    }
}


do_list(before, beforec, after, afterc)
char **before;
int beforec;
char **after;
int afterc;
{
    register int agid, bgid;
    int ahide, bhide;
    long code, id;
    char g1[PR_MAXNAMELEN], g2[PR_MAXNAMELEN];
    char *av[2];

    agid = bgid = 0;
    if (beforec > L_GID && atoi(before[L_ACTIVE]) && atoi(before[L_GROUP])) {
	bgid = atoi(before[L_GID]);
	bhide = atoi(before[L_HIDDEN]);
    }
    if (afterc > L_GID && atoi(after[L_ACTIVE]) && atoi(after[L_GROUP])) {
	agid = atoi(after[L_GID]);
	ahide = atoi(after[L_HIDDEN]);
    }

    if (agid == 0 && bgid == 0)			/* Not active groups */
	return;

    if (agid && bgid) {
	if (strcmp(after[L_NAME], before[L_NAME])) {
	    /* Only a modify is required */
	    strcpy(g1, "system:");
	    strcpy(g2, "system:");
	    strcat(g1, before[L_NAME]);
	    strcat(g2, after[L_NAME]);

	    com_err(whoami, 0, "Changing group %s (gid %d) to %s (gid %d)",
		   before[L_NAME], bgid, after[L_NAME], agid);

	    code = pr_try(pr_ChangeEntry, g1, g2, -agid, "");
	    if (code) {
		critical_alert("incremental",
			       "Couldn't change group %s (id %d) to %s (id %d): %s",
			       before[L_NAME], -bgid, after[L_NAME], -agid,
			       error_message(code));
	    }
	}
	if (ahide != bhide) {
	    com_err(whoami, 0, "Making group %s (gid %d) %s",
		   after[L_NAME], agid,
		   (ahide ? "hidden" : "visible"));
	    code = pr_try(pr_SetFieldsEntry, -agid, PR_SF_ALLBITS,
			  (ahide ? PRP_STATUS_ANY : PRP_GROUP_DEFAULT) >>PRIVATE_SHIFT,
			  0 /*ngroups*/, 0 /*nusers*/);
	    if (code) {
		critical_alert("incremental",
			       "Couldn't set flags of group %s: %s",
			       after[L_NAME], error_message(code));
	    }
	}
	return;
    }
    if (bgid) {
	com_err(whoami, 0, "Deleting group %s (gid %d)",
	       before[L_NAME], bgid);
	code = pr_try(pr_DeleteByID, -bgid);
	if (code && code != PRNOENT) {
	    critical_alert("incremental",
			   "Couldn't delete group %s (id %d): %s",
			   before[L_NAME], -bgid, error_message(code));
	}
	return;
    }
    if (agid) {
	strcpy(g1, "system:");
	strcat(g1, after[L_NAME]);
	strcpy(g2, "system:administrators");
	id = -agid;
	com_err(whoami, 0, "Creating %s group %s (gid %d)",
	       (ahide ? "hidden" : "visible"), after[L_NAME], agid);
	code = pr_try(pr_CreateGroup, g1, g2, &id);
	if (code) {
	    critical_alert("incremental",
			   "Couldn't create group %s (id %d): %s",
			   after[L_NAME], id, error_message(code));
	    return;
	}
	if (ahide) {
	    code = pr_try(pr_SetFieldsEntry, -agid, PR_SF_ALLBITS,
			  (ahide ? PRP_STATUS_ANY : PRP_GROUP_DEFAULT) >>PRIVATE_SHIFT,
			  0 /*ngroups*/, 0 /*nusers*/);
	    if (code) {
		critical_alert("incremental",
			       "Couldn't set flags of group %s: %s",
			       after[L_NAME], error_message(code));
	    }
	}

	/* We need to make sure the group is properly populated */
	if (beforec < L_ACTIVE) return;

	code = moira_connect();
	if (code) {
	    critical_alert("incremental",
			   "Error contacting Moira server to resolve %s: %s",
			   after[L_NAME], error_message(code));
	    return;
	}
	av[0] = after[L_NAME];
	code = mr_query("get_end_members_of_list", 1, av,
			add_list_members, after[L_NAME]);
	if (code)
	    critical_alert("incremental",
			   "Couldn't retrieve full membership of list %s: %s",
			   after[L_NAME], error_message(code));
	moira_disconnect();
	return;
    }
}


do_member(before, beforec, after, afterc)
char **before;
int beforec;
char **after;
int afterc;
{
    int code;
    char *p;
    
    if ((beforec < 4 || !atoi(before[LM_END])) &&
	(afterc < 4 || !atoi(after[LM_END])))
	return;

    if (afterc)
	edit_group(1, after[LM_LIST], after[LM_TYPE], after[LM_MEMBER]);
    if (beforec)
	edit_group(0, before[LM_LIST], before[LM_TYPE], before[LM_MEMBER]);
}


do_filesys(before, beforec, after, afterc)
char **before;
int beforec;
char **after;
int afterc;
{
    char cmd[1024];
    int acreate, atype, btype;

    if (afterc < FS_CREATE) {
	atype = acreate = 0;
    } else {
	atype = !strcmp(after[FS_TYPE], "AFS");
	acreate = atoi(after[FS_CREATE]);
    }

    if (beforec < FS_CREATE) {
	if (acreate == 0 || atype == 0) return;

	/* new locker creation */
	sprintf(cmd, "%s/perl -I%s %s/afs_create.pl %s %s %s %s %s %s",
		BIN_DIR, BIN_DIR, BIN_DIR,
		after[FS_NAME], after[FS_L_TYPE], after[FS_MACHINE],
		after[FS_PACK], after[FS_OWNER], after[FS_OWNERS]);
	run_cmd(cmd);
	return;
    }
    
    btype = !strcmp(before[FS_TYPE], "AFS");
    if (afterc < FS_CREATE) {
	if (btype)
	    critical_alert("incremental",
			   "Cannot delete AFS filesystem %s: Operation not supported",
			   before[FS_NAME]);
	return;
    }

    if (!acreate)
	return;

    /* Are we dealing with AFS lockers (could be type ERR lockers) */
    if (!atype && !btype)
	if (strcmp(before[FS_TYPE], "ERR") || strcmp(after[FS_TYPE], "ERR"))
	    return;
						    
    /* By now, we know we are simply changing AFS filesystem attributes.
     * Operations supported:
     *    Name change:  rename/remount
     *    Path change:  remount
     *    Type change:  ERR<-->AFS
     */

#if 0
    if (strcmp(before[FS_OWNER], after[FS_OWNER]) ||
	strcmp(before[FS_OWNERS], after[FS_OWNERS]))
    {
	critical_alert("incremental",
		       "Cannot change ownership of filesystem %s: Operation not yet supported",
		       after[FS_NAME]);
    }
#endif

    sprintf(cmd, "%s/perl -I%s %s/afs_rename.pl %s %s %s %s %s %s %s %s %s %s",
	    BIN_DIR, BIN_DIR, BIN_DIR,
	    before[FS_NAME], before[FS_MACHINE], before[FS_TYPE],
	    before[FS_L_TYPE], before[FS_PACK],
	    after[FS_NAME], after[FS_MACHINE], after[FS_TYPE],
	    after[FS_L_TYPE], after[FS_PACK]);
    run_cmd(cmd);
}


do_quota(before, beforec, after, afterc)
char **before;
int beforec;
char **after;
int afterc;
{
    char cmd[1024];

    if (afterc < Q_DIRECTORY || strcmp("ANY", after[Q_TYPE]) ||
	strncmp("/afs/", after[Q_DIRECTORY], 5))
	return;

    sprintf(cmd, "%s/perl -I%s %s/afs_quota.pl %s %s",
	    BIN_DIR, BIN_DIR, BIN_DIR,
	    after[Q_DIRECTORY], after[Q_QUOTA]);
    run_cmd(cmd);
    return;
}


run_cmd(cmd)
char *cmd;
{
    int success=0, tries=0;

    check_afs();
    
    while (success == 0 && tries < 2) {
	if (tries++)
	    sleep(90);
	com_err(whoami, 0, "Executing command: %s", cmd);
	if (system(cmd) == 0)
	    success++;
    }
    if (!success)
	critical_alert("incremental", "failed command: %s", cmd);
}


add_user_lists(ac, av, user)
    int ac;
    char *av[];
    char *user;
{
    if (atoi(av[L_ACTIVE]) && atoi(av[L_GROUP]))	/* active group ? */
	edit_group(1, av[L_NAME], "USER", user);
    return 0;
}


add_list_members(ac, av, group)
    int ac;
    char *av[];
    char *group;
{
    edit_group(1, group, av[0], av[1]);
    return 0;
}


check_user(ac, av, ustate)
    int ac;
    char *av[];
    int *ustate;
{
    *ustate = atoi(av[U_STATE]);
    return 0;
}


edit_group(op, group, type, member)
    int op;
    char *group;
    char *type;
    char *member;
{
    char *p = 0;
    char buf[PR_MAXNAMELEN];
    int code, ustate;
    static char local_realm[REALM_SZ+1] = "";
    struct member *m;

    /* The following KERBEROS code allows for the use of entities
     * user@foreign_cell.
     */
    if (!local_realm[0])
	krb_get_lrealm(local_realm, 1);
    if (!strcmp(type, "KERBEROS")) {
	p = index(member, '@');
	if (p && !strcasecmp(p+1, local_realm))
	    *p = 0;
    } else if (strcmp(type, "USER"))
	return;					/* invalid type */

    /* Cannot risk doing another query during a callback */
    /* We could do this simply for type USER, but eventually this may also
     * dynamically add KERBEROS types to the prdb, and we will need to do
     * a query to look up the uid of the null-instance user */
    if (mr_connections) {
	m = (struct member *)malloc(sizeof(struct member));
	if (!m) {
	    critical_alert("incremental", "Out of memory");
	    exit(1);
	}
	m->op = op;
	strcpy(m->list, group);
	strcpy(m->type, type);
	strcpy(m->member, member);
	m->next = member_head;
	member_head = m;
	return;
    }

    strcpy(buf, "system:");
    strcat(buf, group);
    com_err(whoami, 0, "%s %s %s group %s",
	   (op ? "Adding" : "Removing"), member,
	   (op ? "to" : "from"), group);
    code = 0;
    code=pr_try(op ? pr_AddToGroup : pr_RemoveUserFromGroup, member, buf);
    if (code) {
	if (op==1 && code == PRIDEXIST) return;	/* Already added */

	if (code == PRNOENT) {			/* Something is missing */
	    if (op==0) return;			/* Already deleted */
	    if (!strcmp(type, "KERBEROS"))	/* Special instances; ok */
		return;

	    /* Check whether the member being added is an active user */
	    code = moira_connect();
	    if (!code) code = mr_query("get_user_by_login", 1, &member,
				       check_user, &ustate);
	    if (code) {
		critical_alert("incremental",
			       "Error contacting Moira server to lookup user %s: %s",
			       member, error_message(code));
	    }

	    /* We don't use moira_disconnect()
	     * because we may already be in the routine.
	     */
	    mr_disconnect();
	    mr_connections--;

	    if (!code && ustate!=1 && ustate!=2) return; /* inactive user */
	    code = PRNOENT;
	}

	critical_alert("incremental",
		       "Couldn't %s %s %s %s: %s",
		       op ? "add" : "remove", member,
		       op ? "to" : "from", buf,
		       error_message(code));
    }
}


long pr_try(fn, a1, a2, a3, a4, a5, a6, a7, a8)
    long (*fn)();
    char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
{
    static int initd=0;
    volatile register long code;
    register int tries = 0;
#ifdef DEBUG
    char fname[64];
#endif

    check_afs();

    if (initd) {
	code=pr_Initialize(0, AFSCONF_CLIENTNAME, 0);
    } else {
	code = 0;
	initd = 1;
    }
    if (!code) code=pr_Initialize(1, AFSCONF_CLIENTNAME, 0);
    if (code) {
	critical_alert("incremental", "Couldn't initialize libprot: %s",
		       error_message(code));
	return;
    }

    sleep(1);					/* give ptserver room */

    while (code = (*fn)(a1, a2, a3, a4, a5, a6, a7, a8)) {
#ifdef DEBUG
	long t;
	t = time(0);
	if (fn == pr_AddToGroup) strcpy(fname, "pr_AddToGroup");
	else if (fn == pr_RemoveUserFromGroup)
	    strcpy(fname, "pr_RemoveUserFromGroup");
	else if (fn == pr_CreateUser) strcpy(fname, "pr_CreateUser");
	else if (fn == pr_CreateGroup) strcpy(fname, "pr_CreateGroup");
	else if (fn == pr_DeleteByID) strcpy(fname, "pr_DeleteByID");
	else if (fn == pr_ChangeEntry) strcpy(fname, "pr_ChangeEntry");
	else if (fn == pr_SetFieldsEntry) strcpy(fname, "pr_SetFieldsEntry");
	else if (fn == pr_AddToGroup) strcpy(fname, "pr_AddToGroup");
	else
	    sprintf(fname, "pr_??? (0x%08x)", (long)fn);

	com_err(whoami, code, "- %s failed (try %d @%u)", fname, tries+1, t);
#endif
	if (++tries > 2) break;		/* 3 tries */
	
	if (code == UNOQUORUM) sleep(90);
	else sleep(15);

	/* Re-initialize the prdb connection */
    	code=pr_Initialize(0, AFSCONF_CLIENTNAME, 0);
    	if (!code) code=pr_Initialize(1, AFSCONF_CLIENTNAME, 0);
	if (code) {
	    critical_alert("incremental", "Couldn't re-initialize libprot: %s",
			   error_message(code));
	    initd = 0;				/* we lost */
	    break;
	}
    }
    return code;
}


check_afs()
{
    int i;
    
    for (i=0; file_exists(STOP_FILE); i++) {
	if (i > 30) {
	    critical_alert("incremental",
			   "AFS incremental failed (%s exists): %s",
			   STOP_FILE, tbl_buf);
	    exit(1);
	}
	sleep(60);
    }
}


moira_connect()
{
    static char hostname[64];
    long code;

    if (!mr_connections++) {
#ifdef DEBUG
	code = mr_connect("moira");
#else
	gethostname(hostname, sizeof(hostname));
	code = mr_connect(hostname);
#endif
	if (!code) code = mr_auth("afs.incr");
	return code;    
    }
    return 0;
}

moira_disconnect()
{
    struct member *m;
    
    if (!--mr_connections) {
	mr_disconnect();
	while(m = member_head) {
	    edit_group(m->op, m->list, m->type, m->member);
	    member_head = m->next;
	    free(m);
	}
    }
    return 0;
}
Commit	Line	Data
fb8809f4	1	/* $Header$
	2	*
	3	* Do AFS incremental updates
	4	*
60c22e5f	5	* Copyright (C) 1989,1992 by the Massachusetts Institute of Technology
fb8809f4	6	* for copying and distribution information, please see the file
	7	* <mit-copyright.h>.
	8	*/
	9
16838ad1	10	#include <stdio.h>
60c22e5f	11	#include <sys/types.h>
	12	#include <sys/file.h>
	13	#include <strings.h>
	14
d1be2e3a	15	#include <krb.h>
2ce085d2	16	#include <moira.h>
2ce085d2	17	#include <moira_site.h>
f633445d	18
60c22e5f	19	#include <afs/param.h>
	20	#include <afs/cellconfig.h>
	21	#include <afs/venus.h>
	22	#include <afs/ptclient.h>
	23	#include <afs/pterror.h>
fb8809f4	24
d1be2e3a	25	#define STOP_FILE "/moira/afs/noafs"
60c22e5f	26	#define file_exists(file) (access((file), F_OK) == 0)
fb8809f4	27
16838ad1	28	#if defined(vax) && !defined(__STDC__)
	29	#define volatile
	30	#endif
	31
fb8809f4	32	char *whoami;
fb8809f4	33
eb63ae5f	34	/* Main stub routines */
	35	int do_user();
	36	int do_list();
	37	int do_member();
	38	int do_filesys();
	39	int do_quota();
	40
	41	/* Support stub routines */
	42	int run_cmd();
	43	int add_user_lists();
063819ef	44	int add_list_members();
c69d9f2c	45	int check_user();
eb63ae5f	46	int edit_group();
	47	int pr_try();
	48	int check_afs();
	49
	50	/* libprot.a routines */
	51	extern long pr_Initialize();
	52	extern long pr_CreateUser();
	53	extern long pr_CreateGroup();
	54	extern long pr_DeleteByID();
	55	extern long pr_ChangeEntry();
	56	extern long pr_SetFieldsEntry();
	57	extern long pr_AddToGroup();
	58	extern long pr_RemoveUserFromGroup();
	59
	60	static char tbl_buf[1024];
2cb1f02c	61	static struct member {
	62	int op;
	63	char list[33];
	64	char type[9];
	65	char member[129];
	66	struct member *next;
	67	} *member_head = 0;
	68
	69	static int mr_connections=0;
eb63ae5f	70
fb8809f4	71	main(argc, argv)
	72	char **argv;
	73	int argc;
	74	{
a7fdf2de	75	int beforec, afterc, i;
fb8809f4	76	char table, before, *after;
fb8809f4	77
a7fdf2de	78	for (i = getdtablesize() - 1; i > 2; i--)
	79	close(i);
	80
d4ea75d6	81	whoami = ((whoami = rindex(argv[0], '/')) ? whoami++ : argv[0]);
d4ea75d6	82
fb8809f4	83	table = argv[1];
	84	beforec = atoi(argv[2]);
	85	before = &argv[4];
	86	afterc = atoi(argv[3]);
	87	after = &argv[4 + beforec];
f10e3ca2	88
eb63ae5f	89	setlinebuf(stdout);
	90
	91	strcpy(tbl_buf, table);
	92	strcat(tbl_buf, " (");
810d12a7	93	for (i = 0; i < beforec; i++) {
810d12a7	94	if (i > 0)
eb63ae5f	95	strcat(tbl_buf, ",");
eb63ae5f	96	strcat(tbl_buf, before[i]);
810d12a7	97	}
eb63ae5f	98	strcat(tbl_buf, ")->(");
810d12a7	99	for (i = 0; i < afterc; i++) {
810d12a7	100	if (i > 0)
eb63ae5f	101	strcat(tbl_buf, ",");
eb63ae5f	102	strcat(tbl_buf, after[i]);
810d12a7	103	}
eb63ae5f	104	strcat(tbl_buf, ")");
d1be2e3a	105	#ifdef DEBUG
92d359ba	106	com_err(whoami, 0, "%s", tbl_buf);
810d12a7	107	#endif
810d12a7	108
fb8809f4	109	initialize_sms_error_table();
	110	initialize_krb_error_table();
	111
	112	if (!strcmp(table, "users")) {
	113	do_user(before, beforec, after, afterc);
	114	} else if (!strcmp(table, "list")) {
	115	do_list(before, beforec, after, afterc);
	116	} else if (!strcmp(table, "members")) {
	117	do_member(before, beforec, after, afterc);
	118	} else if (!strcmp(table, "filesys")) {
	119	do_filesys(before, beforec, after, afterc);
1f377b55	120	} else if (!strcmp(table, "quota")) {
fb8809f4	121	do_quota(before, beforec, after, afterc);
fb8809f4	122	}
fb8809f4	123	exit(0);
	124	}
	125
	126
fb8809f4	127	do_user(before, beforec, after, afterc)
	128	char **before;
	129	int beforec;
	130	char **after;
	131	int afterc;
	132	{
eb63ae5f	133	int astate, bstate, auid, buid, code;
9b273918	134	char *av[2];
60c22e5f	135
	136	auid = buid = astate = bstate = 0;
	137	if (afterc > U_STATE) astate = atoi(after[U_STATE]);
	138	if (beforec > U_STATE) bstate = atoi(before[U_STATE]);
	139	if (afterc > U_UID) auid = atoi(after[U_UID]);
	140	if (beforec > U_UID) buid = atoi(before[U_UID]);
	141
	142	/* We consider "half-registered" users to be active */
810d12a7	143	if (astate == 2) astate = 1;
810d12a7	144	if (bstate == 2) bstate = 1;
fb8809f4	145
60c22e5f	146	if (astate != 1 && bstate != 1) /* inactive user */
fb8809f4	147	return;
60c22e5f	148
	149	if (astate == bstate && auid == buid &&
	150	!strcmp(before[U_NAME], after[U_NAME]))
	151	/* No AFS related attributes have changed */
fb8809f4	152	return;
fb8809f4	153
60c22e5f	154	if (astate == bstate) {
60c22e5f	155	/* Only a modify has to be done */
92d359ba	156	com_err(whoami, 0, "Changing user %s (uid %d) to %s (uid %d)",
	157	before[U_NAME], buid, after[U_NAME], auid);
	158
eb63ae5f	159	code = pr_try(pr_ChangeEntry, before[U_NAME], after[U_NAME], auid, "");
60c22e5f	160	if (code) {
	161	critical_alert("incremental",
	162	"Couldn't change user %s (id %d) to %s (id %d): %s",
	163	before[U_NAME], buid, after[U_NAME], auid,
	164	error_message(code));
	165	}
	166	return;
	167	}
	168	if (bstate == 1) {
92d359ba	169	com_err(whoami, 0, "Deleting user %s (uid %d)",
	170	before[U_NAME], buid);
	171
eb63ae5f	172	code = pr_try(pr_DeleteByID, buid);
60c22e5f	173	if (code && code != PRNOENT) {
	174	critical_alert("incremental",
	175	"Couldn't delete user %s (id %d): %s",
	176	before[U_NAME], buid, error_message(code));
	177	}
	178	return;
	179	}
	180	if (astate == 1) {
92d359ba	181	com_err(whoami, 0, "%s user %s (uid %d)",
	182	((bstate != 0) ? "Reactivating" : "Creating"),
	183	after[U_NAME], auid);
	184
eb63ae5f	185	code = pr_try(pr_CreateUser, after[U_NAME], &auid);
60c22e5f	186	if (code) {
	187	critical_alert("incremental",
	188	"Couldn't create user %s (id %d): %s",
	189	after[U_NAME], auid, error_message(code));
96786144	190	return;
60c22e5f	191	}
2dbcb756	192
0f82335a	193	if (bstate != 0) {
9b273918	194	/* Reactivating a user; get his group list */
14d69e25	195	code = moira_connect();
9b273918	196	if (code) {
	197	critical_alert("incremental",
	198	"Error contacting Moira server to retrieve grouplist of user %s: %s",
	199	after[U_NAME], error_message(code));
	200	return;
	201	}
2dbcb756	202	av[0] = "ruser";
9b273918	203	av[1] = after[U_NAME];
	204	code = mr_query("get_lists_of_member", 2, av,
	205	add_user_lists, after[U_NAME]);
b80d6d78	206	if (code && code != MR_NO_MATCH)
9b273918	207	critical_alert("incremental",
	208	"Couldn't retrieve membership of user %s: %s",
	209	after[U_NAME], error_message(code));
14d69e25	210	moira_disconnect();
9b273918	211	}
60c22e5f	212	return;
fb8809f4	213	}
	214	}
	215
	216
fb8809f4	217	do_list(before, beforec, after, afterc)
	218	char **before;
	219	int beforec;
	220	char **after;
	221	int afterc;
	222	{
8ec23c21	223	register int agid, bgid;
eb63ae5f	224	int ahide, bhide;
60c22e5f	225	long code, id;
60c22e5f	226	char g1[PR_MAXNAMELEN], g2[PR_MAXNAMELEN];
ed9a5300	227	char *av[2];
fb8809f4	228
60c22e5f	229	agid = bgid = 0;
8ec23c21	230	if (beforec > L_GID && atoi(before[L_ACTIVE]) && atoi(before[L_GROUP])) {
60c22e5f	231	bgid = atoi(before[L_GID]);
8ec23c21	232	bhide = atoi(before[L_HIDDEN]);
	233	}
	234	if (afterc > L_GID && atoi(after[L_ACTIVE]) && atoi(after[L_GROUP])) {
60c22e5f	235	agid = atoi(after[L_GID]);
8ec23c21	236	ahide = atoi(after[L_HIDDEN]);
8ec23c21	237	}
fb8809f4	238
60c22e5f	239	if (agid == 0 && bgid == 0) /* Not active groups */
60c22e5f	240	return;
60c22e5f	241
60c22e5f	242	if (agid && bgid) {
8ec23c21	243	if (strcmp(after[L_NAME], before[L_NAME])) {
	244	/* Only a modify is required */
	245	strcpy(g1, "system:");
	246	strcpy(g2, "system:");
	247	strcat(g1, before[L_NAME]);
	248	strcat(g2, after[L_NAME]);
92d359ba	249
	250	com_err(whoami, 0, "Changing group %s (gid %d) to %s (gid %d)",
	251	before[L_NAME], bgid, after[L_NAME], agid);
	252
eb63ae5f	253	code = pr_try(pr_ChangeEntry, g1, g2, -agid, "");
8ec23c21	254	if (code) {
	255	critical_alert("incremental",
	256	"Couldn't change group %s (id %d) to %s (id %d): %s",
	257	before[L_NAME], -bgid, after[L_NAME], -agid,
	258	error_message(code));
	259	}
	260	}
	261	if (ahide != bhide) {
92d359ba	262	com_err(whoami, 0, "Making group %s (gid %d) %s",
	263	after[L_NAME], agid,
	264	(ahide ? "hidden" : "visible"));
eb63ae5f	265	code = pr_try(pr_SetFieldsEntry, -agid, PR_SF_ALLBITS,
	266	(ahide ? PRP_STATUS_ANY : PRP_GROUP_DEFAULT) >>PRIVATE_SHIFT,
	267	0 /ngroups/, 0 /nusers/);
8ec23c21	268	if (code) {
	269	critical_alert("incremental",
	270	"Couldn't set flags of group %s: %s",
	271	after[L_NAME], error_message(code));
	272	}
60c22e5f	273	}
fb8809f4	274	return;
fb8809f4	275	}
60c22e5f	276	if (bgid) {
92d359ba	277	com_err(whoami, 0, "Deleting group %s (gid %d)",
92d359ba	278	before[L_NAME], bgid);
eb63ae5f	279	code = pr_try(pr_DeleteByID, -bgid);
60c22e5f	280	if (code && code != PRNOENT) {
	281	critical_alert("incremental",
	282	"Couldn't delete group %s (id %d): %s",
	283	before[L_NAME], -bgid, error_message(code));
	284	}
fb8809f4	285	return;
fb8809f4	286	}
60c22e5f	287	if (agid) {
	288	strcpy(g1, "system:");
	289	strcat(g1, after[L_NAME]);
	290	strcpy(g2, "system:administrators");
	291	id = -agid;
92d359ba	292	com_err(whoami, 0, "Creating %s group %s (gid %d)",
92d359ba	293	(ahide ? "hidden" : "visible"), after[L_NAME], agid);
eb63ae5f	294	code = pr_try(pr_CreateGroup, g1, g2, &id);
60c22e5f	295	if (code) {
	296	critical_alert("incremental",
	297	"Couldn't create group %s (id %d): %s",
ed9a5300	298	after[L_NAME], id, error_message(code));
60c22e5f	299	return;
60c22e5f	300	}
8ec23c21	301	if (ahide) {
eb63ae5f	302	code = pr_try(pr_SetFieldsEntry, -agid, PR_SF_ALLBITS,
	303	(ahide ? PRP_STATUS_ANY : PRP_GROUP_DEFAULT) >>PRIVATE_SHIFT,
	304	0 /ngroups/, 0 /nusers/);
8ec23c21	305	if (code) {
	306	critical_alert("incremental",
	307	"Couldn't set flags of group %s: %s",
	308	after[L_NAME], error_message(code));
	309	}
	310	}
60c22e5f	311
60c22e5f	312	/* We need to make sure the group is properly populated */
c69d9f2c	313	if (beforec < L_ACTIVE) return;
60c22e5f	314
14d69e25	315	code = moira_connect();
ed9a5300	316	if (code) {
	317	critical_alert("incremental",
	318	"Error contacting Moira server to resolve %s: %s",
	319	after[L_NAME], error_message(code));
	320	return;
	321	}
cdf6674b	322	av[0] = after[L_NAME];
cdf6674b	323	code = mr_query("get_end_members_of_list", 1, av,
063819ef	324	add_list_members, after[L_NAME]);
	325	if (code)
	326	critical_alert("incremental",
	327	"Couldn't retrieve full membership of list %s: %s",
	328	after[L_NAME], error_message(code));
14d69e25	329	moira_disconnect();
ed9a5300	330	return;
60c22e5f	331	}
fb8809f4	332	}
	333
	334
	335	do_member(before, beforec, after, afterc)
	336	char **before;
	337	int beforec;
	338	char **after;
	339	int afterc;
	340	{
60c22e5f	341	int code;
	342	char *p;
	343
bd70a79d	344	if ((beforec < 4 \|\| !atoi(before[LM_END])) &&
bd70a79d	345	(afterc < 4 \|\| !atoi(after[LM_END])))
fb8809f4	346	return;
60c22e5f	347
92d359ba	348	if (afterc)
ed9a5300	349	edit_group(1, after[LM_LIST], after[LM_TYPE], after[LM_MEMBER]);
ed9a5300	350	if (beforec)
e9f07a3b	351	edit_group(0, before[LM_LIST], before[LM_TYPE], before[LM_MEMBER]);
ed9a5300	352	}
	353
	354
eb63ae5f	355	do_filesys(before, beforec, after, afterc)
	356	char **before;
	357	int beforec;
	358	char **after;
	359	int afterc;
	360	{
	361	char cmd[1024];
89e513d9	362	int acreate, atype, btype;
	363
	364	if (afterc < FS_CREATE) {
	365	atype = acreate = 0;
	366	} else {
	367	atype = !strcmp(after[FS_TYPE], "AFS");
	368	acreate = atoi(after[FS_CREATE]);
	369	}
	370
eb63ae5f	371	if (beforec < FS_CREATE) {
89e513d9	372	if (acreate == 0 \|\| atype == 0) return;
eb63ae5f	373
	374	/* new locker creation */
	375	sprintf(cmd, "%s/perl -I%s %s/afs_create.pl %s %s %s %s %s %s",
	376	BIN_DIR, BIN_DIR, BIN_DIR,
	377	after[FS_NAME], after[FS_L_TYPE], after[FS_MACHINE],
	378	after[FS_PACK], after[FS_OWNER], after[FS_OWNERS]);
	379	run_cmd(cmd);
	380	return;
	381	}
89e513d9	382
89e513d9	383	btype = !strcmp(before[FS_TYPE], "AFS");
eb63ae5f	384	if (afterc < FS_CREATE) {
89e513d9	385	if (btype)
eb63ae5f	386	critical_alert("incremental",
3b1e9c5f	387	"Cannot delete AFS filesystem %s: Operation not supported",
eb63ae5f	388	before[FS_NAME]);
eb63ae5f	389	return;
eb63ae5f	390	}
3b1e9c5f	391
	392	if (!acreate)
	393	return;
	394
	395	/* Are we dealing with AFS lockers (could be type ERR lockers) */
	396	if (!atype && !btype)
	397	if (strcmp(before[FS_TYPE], "ERR") \|\| strcmp(after[FS_TYPE], "ERR"))
	398	return;
	399
	400	/* By now, we know we are simply changing AFS filesystem attributes.
	401	* Operations supported:
	402	* Name change: rename/remount
	403	* Path change: remount
	404	* Type change: ERR<-->AFS
	405	*/
0f82335a	406
0f82335a	407	#if 0
3b1e9c5f	408	if (strcmp(before[FS_OWNER], after[FS_OWNER]) \|\|
3ae9c0f3	409	strcmp(before[FS_OWNERS], after[FS_OWNERS]))
3b1e9c5f	410	{
	411	critical_alert("incremental",
	412	"Cannot change ownership of filesystem %s: Operation not yet supported",
	413	after[FS_NAME]);
	414	}
0f82335a	415	#endif
3b1e9c5f	416
	417	sprintf(cmd, "%s/perl -I%s %s/afs_rename.pl %s %s %s %s %s %s %s %s %s %s",
	418	BIN_DIR, BIN_DIR, BIN_DIR,
3ae9c0f3	419	before[FS_NAME], before[FS_MACHINE], before[FS_TYPE],
3b1e9c5f	420	before[FS_L_TYPE], before[FS_PACK],
3ae9c0f3	421	after[FS_NAME], after[FS_MACHINE], after[FS_TYPE],
3b1e9c5f	422	after[FS_L_TYPE], after[FS_PACK]);
3b1e9c5f	423	run_cmd(cmd);
eb63ae5f	424	}
	425
	426
	427	do_quota(before, beforec, after, afterc)
	428	char **before;
	429	int beforec;
	430	char **after;
	431	int afterc;
	432	{
	433	char cmd[1024];
	434
	435	if (afterc < Q_DIRECTORY \|\| strcmp("ANY", after[Q_TYPE]) \|\|
	436	strncmp("/afs/", after[Q_DIRECTORY], 5))
	437	return;
	438
	439	sprintf(cmd, "%s/perl -I%s %s/afs_quota.pl %s %s",
	440	BIN_DIR, BIN_DIR, BIN_DIR,
	441	after[Q_DIRECTORY], after[Q_QUOTA]);
	442	run_cmd(cmd);
	443	return;
	444	}
	445
	446
	447	run_cmd(cmd)
	448	char *cmd;
	449	{
	450	int success=0, tries=0;
	451
	452	check_afs();
	453
	454	while (success == 0 && tries < 2) {
	455	if (tries++)
	456	sleep(90);
	457	com_err(whoami, 0, "Executing command: %s", cmd);
	458	if (system(cmd) == 0)
	459	success++;
	460	}
	461	if (!success)
	462	critical_alert("incremental", "failed command: %s", cmd);
	463	}
	464
	465
	466	add_user_lists(ac, av, user)
	467	int ac;
	468	char *av[];
	469	char *user;
	470	{
2cb1f02c	471	if (atoi(av[L_ACTIVE]) && atoi(av[L_GROUP])) /* active group ? */
2cb1f02c	472	edit_group(1, av[L_NAME], "USER", user);
d4ea75d6	473	return 0;
eb63ae5f	474	}
	475
	476
063819ef	477	add_list_members(ac, av, group)
ed9a5300	478	int ac;
	479	char *av[];
	480	char *group;
	481	{
063819ef	482	edit_group(1, group, av[0], av[1]);
d4ea75d6	483	return 0;
ed9a5300	484	}
	485
	486
c69d9f2c	487	check_user(ac, av, ustate)
	488	int ac;
	489	char *av[];
	490	int *ustate;
	491	{
2cb1f02c	492	*ustate = atoi(av[U_STATE]);
d4ea75d6	493	return 0;
c69d9f2c	494	}
	495
	496
ed9a5300	497	edit_group(op, group, type, member)
	498	int op;
	499	char *group;
	500	char *type;
	501	char *member;
	502	{
	503	char *p = 0;
	504	char buf[PR_MAXNAMELEN];
c69d9f2c	505	int code, ustate;
d1be2e3a	506	static char local_realm[REALM_SZ+1] = "";
2cb1f02c	507	struct member *m;
ed9a5300	508
60c22e5f	509	/* The following KERBEROS code allows for the use of entities
	510	* user@foreign_cell.
	511	*/
d1be2e3a	512	if (!local_realm[0])
d1be2e3a	513	krb_get_lrealm(local_realm, 1);
ed9a5300	514	if (!strcmp(type, "KERBEROS")) {
ed9a5300	515	p = index(member, '@');
d1be2e3a	516	if (p && !strcasecmp(p+1, local_realm))
60c22e5f	517	*p = 0;
ed9a5300	518	} else if (strcmp(type, "USER"))
ed9a5300	519	return; /* invalid type */
60c22e5f	520
2cb1f02c	521	/* Cannot risk doing another query during a callback */
	522	/* We could do this simply for type USER, but eventually this may also
	523	* dynamically add KERBEROS types to the prdb, and we will need to do
	524	* a query to look up the uid of the null-instance user */
	525	if (mr_connections) {
	526	m = (struct member *)malloc(sizeof(struct member));
	527	if (!m) {
	528	critical_alert("incremental", "Out of memory");
	529	exit(1);
	530	}
	531	m->op = op;
	532	strcpy(m->list, group);
	533	strcpy(m->type, type);
	534	strcpy(m->member, member);
	535	m->next = member_head;
	536	member_head = m;
	537	return;
	538	}
	539
ed9a5300	540	strcpy(buf, "system:");
ed9a5300	541	strcat(buf, group);
92d359ba	542	com_err(whoami, 0, "%s %s %s group %s",
	543	(op ? "Adding" : "Removing"), member,
	544	(op ? "to" : "from"), group);
d4ea75d6	545	code = 0;
eb63ae5f	546	code=pr_try(op ? pr_AddToGroup : pr_RemoveUserFromGroup, member, buf);
ed9a5300	547	if (code) {
c69d9f2c	548	if (op==1 && code == PRIDEXIST) return; /* Already added */
	549
	550	if (code == PRNOENT) { /* Something is missing */
	551	if (op==0) return; /* Already deleted */
	552	if (!strcmp(type, "KERBEROS")) /* Special instances; ok */
	553	return;
	554
	555	/* Check whether the member being added is an active user */
14d69e25	556	code = moira_connect();
c69d9f2c	557	if (!code) code = mr_query("get_user_by_login", 1, &member,
	558	check_user, &ustate);
	559	if (code) {
	560	critical_alert("incremental",
	561	"Error contacting Moira server to lookup user %s: %s",
	562	member, error_message(code));
	563	}
6250582e	564
	565	/* We don't use moira_disconnect()
	566	* because we may already be in the routine.
	567	*/
	568	mr_disconnect();
	569	mr_connections--;
	570
c69d9f2c	571	if (!code && ustate!=1 && ustate!=2) return; /* inactive user */
32ed4a32	572	code = PRNOENT;
60c22e5f	573	}
c69d9f2c	574
	575	critical_alert("incremental",
	576	"Couldn't %s %s %s %s: %s",
	577	op ? "add" : "remove", member,
	578	op ? "to" : "from", buf,
	579	error_message(code));
57bc9f26	580	}
fb8809f4	581	}
	582
	583
eb63ae5f	584	long pr_try(fn, a1, a2, a3, a4, a5, a6, a7, a8)
	585	long (*fn)();
	586	char a1, a2, a3, a4, a5, a6, a7, a8;
fb8809f4	587	{
eb63ae5f	588	static int initd=0;
16838ad1	589	volatile register long code;
eb63ae5f	590	register int tries = 0;
	591	#ifdef DEBUG
	592	char fname[64];
	593	#endif
	594
	595	check_afs();
d4ea75d6	596
7fca28a9	597	if (initd) {
	598	code=pr_Initialize(0, AFSCONF_CLIENTNAME, 0);
	599	} else {
	600	code = 0;
eb63ae5f	601	initd = 1;
9b9540a1	602	}
7fca28a9	603	if (!code) code=pr_Initialize(1, AFSCONF_CLIENTNAME, 0);
	604	if (code) {
	605	critical_alert("incremental", "Couldn't initialize libprot: %s",
	606	error_message(code));
	607	return;
	608	}
	609
16838ad1	610	sleep(1); /* give ptserver room */
9b9540a1	611
eb63ae5f	612	while (code = (*fn)(a1, a2, a3, a4, a5, a6, a7, a8)) {
	613	#ifdef DEBUG
	614	long t;
	615	t = time(0);
	616	if (fn == pr_AddToGroup) strcpy(fname, "pr_AddToGroup");
	617	else if (fn == pr_RemoveUserFromGroup)
	618	strcpy(fname, "pr_RemoveUserFromGroup");
	619	else if (fn == pr_CreateUser) strcpy(fname, "pr_CreateUser");
	620	else if (fn == pr_CreateGroup) strcpy(fname, "pr_CreateGroup");
	621	else if (fn == pr_DeleteByID) strcpy(fname, "pr_DeleteByID");
	622	else if (fn == pr_ChangeEntry) strcpy(fname, "pr_ChangeEntry");
	623	else if (fn == pr_SetFieldsEntry) strcpy(fname, "pr_SetFieldsEntry");
	624	else if (fn == pr_AddToGroup) strcpy(fname, "pr_AddToGroup");
16838ad1	625	else
eb63ae5f	626	sprintf(fname, "pr_??? (0x%08x)", (long)fn);
eb63ae5f	627
16838ad1	628	com_err(whoami, code, "- %s failed (try %d @%u)", fname, tries+1, t);
eb63ae5f	629	#endif
16838ad1	630	if (++tries > 2) break; /* 3 tries */
	631
	632	if (code == UNOQUORUM) sleep(90);
	633	else sleep(15);
	634
	635	/* Re-initialize the prdb connection */
	636	code=pr_Initialize(0, AFSCONF_CLIENTNAME, 0);
	637	if (!code) code=pr_Initialize(1, AFSCONF_CLIENTNAME, 0);
	638	if (code) {
	639	critical_alert("incremental", "Couldn't re-initialize libprot: %s",
	640	error_message(code));
	641	initd = 0; /* we lost */
	642	break;
	643	}
9b9540a1	644	}
eb63ae5f	645	return code;
fb8809f4	646	}
	647
	648
eb63ae5f	649	check_afs()
fb8809f4	650	{
eb63ae5f	651	int i;
	652
	653	for (i=0; file_exists(STOP_FILE); i++) {
	654	if (i > 30) {
	655	critical_alert("incremental",
	656	"AFS incremental failed (%s exists): %s",
	657	STOP_FILE, tbl_buf);
	658	exit(1);
	659	}
	660	sleep(60);
	661	}
fb8809f4	662	}
14d69e25	663
14d69e25	664
14d69e25	665	moira_connect()
	666	{
	667	static char hostname[64];
	668	long code;
	669
	670	if (!mr_connections++) {
d4ea75d6	671	#ifdef DEBUG
	672	code = mr_connect("moira");
	673	#else
14d69e25	674	gethostname(hostname, sizeof(hostname));
14d69e25	675	code = mr_connect(hostname);
d4ea75d6	676	#endif
14d69e25	677	if (!code) code = mr_auth("afs.incr");
	678	return code;
	679	}
	680	return 0;
	681	}
	682
	683	moira_disconnect()
	684	{
2cb1f02c	685	struct member *m;
2cb1f02c	686
14d69e25	687	if (!--mr_connections) {
32ed4a32	688	mr_disconnect();
32ed4a32	689	while(m = member_head) {
2cb1f02c	690	edit_group(m->op, m->list, m->type, m->member);
	691	member_head = m->next;
	692	free(m);
	693	}
14d69e25	694	}
	695	return 0;
	696	}