[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 get_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);

    table = argv[1];
    beforec = atoi(argv[2]);
    before = &argv[4];
    afterc = atoi(argv[3]);
    after = &argv[4 + beforec];
    whoami = argv[0];

    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
    printf("%s\n", 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 */
	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) {
	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) {
	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]);
	    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) {
	    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) {
	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;
	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] = "LIST";
	av[1] = after[L_NAME];
	get_members(2, av, after[L_NAME]);

	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);
}


get_members(ac, av, group)
    int ac;
    char *av[];
    char *group;
{
    int code=0;

    code = mr_query("get_end_members_of_list", 1, &av[1], get_members, group);
    if (code)
	critical_alert("incremental",
		       "Couldn't retrieve full membership of %s: %s",
		       group, error_message(code));
    return code;
}


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


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

	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(1, AFSCONF_CLIENTNAME, 0);
	if (code) {
	    critical_alert("incremental", "Couldn't initialize libprot: %s",
			   error_message(code));
	    return;
	}
	initd = 1;
    }
    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++) {
	gethostname(hostname, sizeof(hostname));
	code = mr_connect(hostname);
	if (!code) code = mr_auth("afs.incr");
	return code;    
    }
    return 0;
}

moira_disconnect()
{
    struct member *m;
    
    if (!--mr_connections) {
	while(member_head) {
	    m = member_head;
	    edit_group(m->op, m->list, m->type, m->member);
	    member_head = m->next;
	    free(m);
	}
	mr_disconnect();
    }
    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();
	44	int get_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
fb8809f4	81	table = argv[1];
	82	beforec = atoi(argv[2]);
	83	before = &argv[4];
	84	afterc = atoi(argv[3]);
	85	after = &argv[4 + beforec];
48c9cd1f	86	whoami = argv[0];
f10e3ca2	87
eb63ae5f	88	setlinebuf(stdout);
	89
	90	strcpy(tbl_buf, table);
	91	strcat(tbl_buf, " (");
810d12a7	92	for (i = 0; i < beforec; i++) {
810d12a7	93	if (i > 0)
eb63ae5f	94	strcat(tbl_buf, ",");
eb63ae5f	95	strcat(tbl_buf, before[i]);
810d12a7	96	}
eb63ae5f	97	strcat(tbl_buf, ")->(");
810d12a7	98	for (i = 0; i < afterc; i++) {
810d12a7	99	if (i > 0)
eb63ae5f	100	strcat(tbl_buf, ",");
eb63ae5f	101	strcat(tbl_buf, after[i]);
810d12a7	102	}
eb63ae5f	103	strcat(tbl_buf, ")");
d1be2e3a	104	#ifdef DEBUG
eb63ae5f	105	printf("%s\n", tbl_buf);
810d12a7	106	#endif
810d12a7	107
fb8809f4	108	initialize_sms_error_table();
	109	initialize_krb_error_table();
	110
	111	if (!strcmp(table, "users")) {
	112	do_user(before, beforec, after, afterc);
	113	} else if (!strcmp(table, "list")) {
	114	do_list(before, beforec, after, afterc);
	115	} else if (!strcmp(table, "members")) {
	116	do_member(before, beforec, after, afterc);
	117	} else if (!strcmp(table, "filesys")) {
	118	do_filesys(before, beforec, after, afterc);
1f377b55	119	} else if (!strcmp(table, "quota")) {
fb8809f4	120	do_quota(before, beforec, after, afterc);
fb8809f4	121	}
fb8809f4	122	exit(0);
	123	}
	124
	125
fb8809f4	126	do_user(before, beforec, after, afterc)
	127	char **before;
	128	int beforec;
	129	char **after;
	130	int afterc;
	131	{
eb63ae5f	132	int astate, bstate, auid, buid, code;
9b273918	133	char *av[2];
60c22e5f	134
	135	auid = buid = astate = bstate = 0;
	136	if (afterc > U_STATE) astate = atoi(after[U_STATE]);
	137	if (beforec > U_STATE) bstate = atoi(before[U_STATE]);
	138	if (afterc > U_UID) auid = atoi(after[U_UID]);
	139	if (beforec > U_UID) buid = atoi(before[U_UID]);
	140
	141	/* We consider "half-registered" users to be active */
810d12a7	142	if (astate == 2) astate = 1;
810d12a7	143	if (bstate == 2) bstate = 1;
fb8809f4	144
60c22e5f	145	if (astate != 1 && bstate != 1) /* inactive user */
fb8809f4	146	return;
60c22e5f	147
	148	if (astate == bstate && auid == buid &&
	149	!strcmp(before[U_NAME], after[U_NAME]))
	150	/* No AFS related attributes have changed */
fb8809f4	151	return;
fb8809f4	152
60c22e5f	153	if (astate == bstate) {
60c22e5f	154	/* Only a modify has to be done */
eb63ae5f	155	code = pr_try(pr_ChangeEntry, before[U_NAME], after[U_NAME], auid, "");
60c22e5f	156	if (code) {
	157	critical_alert("incremental",
	158	"Couldn't change user %s (id %d) to %s (id %d): %s",
	159	before[U_NAME], buid, after[U_NAME], auid,
	160	error_message(code));
	161	}
	162	return;
	163	}
	164	if (bstate == 1) {
eb63ae5f	165	code = pr_try(pr_DeleteByID, buid);
60c22e5f	166	if (code && code != PRNOENT) {
	167	critical_alert("incremental",
	168	"Couldn't delete user %s (id %d): %s",
	169	before[U_NAME], buid, error_message(code));
	170	}
	171	return;
	172	}
	173	if (astate == 1) {
eb63ae5f	174	code = pr_try(pr_CreateUser, after[U_NAME], &auid);
60c22e5f	175	if (code) {
	176	critical_alert("incremental",
	177	"Couldn't create user %s (id %d): %s",
	178	after[U_NAME], auid, error_message(code));
96786144	179	return;
60c22e5f	180	}
2dbcb756	181
0f82335a	182	if (bstate != 0) {
9b273918	183	/* Reactivating a user; get his group list */
14d69e25	184	code = moira_connect();
9b273918	185	if (code) {
	186	critical_alert("incremental",
	187	"Error contacting Moira server to retrieve grouplist of user %s: %s",
	188	after[U_NAME], error_message(code));
	189	return;
	190	}
2dbcb756	191	av[0] = "ruser";
9b273918	192	av[1] = after[U_NAME];
	193	code = mr_query("get_lists_of_member", 2, av,
	194	add_user_lists, after[U_NAME]);
b80d6d78	195	if (code && code != MR_NO_MATCH)
9b273918	196	critical_alert("incremental",
	197	"Couldn't retrieve membership of user %s: %s",
	198	after[U_NAME], error_message(code));
14d69e25	199	moira_disconnect();
9b273918	200	}
60c22e5f	201	return;
fb8809f4	202	}
	203	}
	204
	205
fb8809f4	206	do_list(before, beforec, after, afterc)
	207	char **before;
	208	int beforec;
	209	char **after;
	210	int afterc;
	211	{
8ec23c21	212	register int agid, bgid;
eb63ae5f	213	int ahide, bhide;
60c22e5f	214	long code, id;
60c22e5f	215	char g1[PR_MAXNAMELEN], g2[PR_MAXNAMELEN];
ed9a5300	216	char *av[2];
fb8809f4	217
60c22e5f	218	agid = bgid = 0;
8ec23c21	219	if (beforec > L_GID && atoi(before[L_ACTIVE]) && atoi(before[L_GROUP])) {
60c22e5f	220	bgid = atoi(before[L_GID]);
8ec23c21	221	bhide = atoi(before[L_HIDDEN]);
	222	}
	223	if (afterc > L_GID && atoi(after[L_ACTIVE]) && atoi(after[L_GROUP])) {
60c22e5f	224	agid = atoi(after[L_GID]);
8ec23c21	225	ahide = atoi(after[L_HIDDEN]);
8ec23c21	226	}
fb8809f4	227
60c22e5f	228	if (agid == 0 && bgid == 0) /* Not active groups */
60c22e5f	229	return;
60c22e5f	230
60c22e5f	231	if (agid && bgid) {
8ec23c21	232	if (strcmp(after[L_NAME], before[L_NAME])) {
	233	/* Only a modify is required */
	234	strcpy(g1, "system:");
	235	strcpy(g2, "system:");
	236	strcat(g1, before[L_NAME]);
	237	strcat(g2, after[L_NAME]);
eb63ae5f	238	code = pr_try(pr_ChangeEntry, g1, g2, -agid, "");
8ec23c21	239	if (code) {
	240	critical_alert("incremental",
	241	"Couldn't change group %s (id %d) to %s (id %d): %s",
	242	before[L_NAME], -bgid, after[L_NAME], -agid,
	243	error_message(code));
	244	}
	245	}
	246	if (ahide != bhide) {
eb63ae5f	247	code = pr_try(pr_SetFieldsEntry, -agid, PR_SF_ALLBITS,
	248	(ahide ? PRP_STATUS_ANY : PRP_GROUP_DEFAULT) >>PRIVATE_SHIFT,
	249	0 /ngroups/, 0 /nusers/);
8ec23c21	250	if (code) {
	251	critical_alert("incremental",
	252	"Couldn't set flags of group %s: %s",
	253	after[L_NAME], error_message(code));
	254	}
60c22e5f	255	}
fb8809f4	256	return;
fb8809f4	257	}
60c22e5f	258	if (bgid) {
eb63ae5f	259	code = pr_try(pr_DeleteByID, -bgid);
60c22e5f	260	if (code && code != PRNOENT) {
	261	critical_alert("incremental",
	262	"Couldn't delete group %s (id %d): %s",
	263	before[L_NAME], -bgid, error_message(code));
	264	}
fb8809f4	265	return;
fb8809f4	266	}
60c22e5f	267	if (agid) {
	268	strcpy(g1, "system:");
	269	strcat(g1, after[L_NAME]);
	270	strcpy(g2, "system:administrators");
	271	id = -agid;
eb63ae5f	272	code = pr_try(pr_CreateGroup, g1, g2, &id);
60c22e5f	273	if (code) {
	274	critical_alert("incremental",
	275	"Couldn't create group %s (id %d): %s",
ed9a5300	276	after[L_NAME], id, error_message(code));
60c22e5f	277	return;
60c22e5f	278	}
8ec23c21	279	if (ahide) {
eb63ae5f	280	code = pr_try(pr_SetFieldsEntry, -agid, PR_SF_ALLBITS,
	281	(ahide ? PRP_STATUS_ANY : PRP_GROUP_DEFAULT) >>PRIVATE_SHIFT,
	282	0 /ngroups/, 0 /nusers/);
8ec23c21	283	if (code) {
	284	critical_alert("incremental",
	285	"Couldn't set flags of group %s: %s",
	286	after[L_NAME], error_message(code));
	287	}
	288	}
60c22e5f	289
60c22e5f	290	/* We need to make sure the group is properly populated */
c69d9f2c	291	if (beforec < L_ACTIVE) return;
60c22e5f	292
14d69e25	293	code = moira_connect();
ed9a5300	294	if (code) {
	295	critical_alert("incremental",
	296	"Error contacting Moira server to resolve %s: %s",
	297	after[L_NAME], error_message(code));
	298	return;
	299	}
	300	av[0] = "LIST";
	301	av[1] = after[L_NAME];
	302	get_members(2, av, after[L_NAME]);
	303
14d69e25	304	moira_disconnect();
ed9a5300	305	return;
60c22e5f	306	}
fb8809f4	307	}
	308
	309
	310	do_member(before, beforec, after, afterc)
	311	char **before;
	312	int beforec;
	313	char **after;
	314	int afterc;
	315	{
60c22e5f	316	int code;
	317	char *p;
	318
bd70a79d	319	if ((beforec < 4 \|\| !atoi(before[LM_END])) &&
bd70a79d	320	(afterc < 4 \|\| !atoi(after[LM_END])))
fb8809f4	321	return;
60c22e5f	322
ed9a5300	323	if (afterc)
	324	edit_group(1, after[LM_LIST], after[LM_TYPE], after[LM_MEMBER]);
	325	if (beforec)
e9f07a3b	326	edit_group(0, before[LM_LIST], before[LM_TYPE], before[LM_MEMBER]);
ed9a5300	327	}
	328
	329
eb63ae5f	330	do_filesys(before, beforec, after, afterc)
	331	char **before;
	332	int beforec;
	333	char **after;
	334	int afterc;
	335	{
	336	char cmd[1024];
89e513d9	337	int acreate, atype, btype;
	338
	339	if (afterc < FS_CREATE) {
	340	atype = acreate = 0;
	341	} else {
	342	atype = !strcmp(after[FS_TYPE], "AFS");
	343	acreate = atoi(after[FS_CREATE]);
	344	}
	345
eb63ae5f	346	if (beforec < FS_CREATE) {
89e513d9	347	if (acreate == 0 \|\| atype == 0) return;
eb63ae5f	348
	349	/* new locker creation */
	350	sprintf(cmd, "%s/perl -I%s %s/afs_create.pl %s %s %s %s %s %s",
	351	BIN_DIR, BIN_DIR, BIN_DIR,
	352	after[FS_NAME], after[FS_L_TYPE], after[FS_MACHINE],
	353	after[FS_PACK], after[FS_OWNER], after[FS_OWNERS]);
	354	run_cmd(cmd);
	355	return;
	356	}
89e513d9	357
89e513d9	358	btype = !strcmp(before[FS_TYPE], "AFS");
eb63ae5f	359	if (afterc < FS_CREATE) {
89e513d9	360	if (btype)
eb63ae5f	361	critical_alert("incremental",
3b1e9c5f	362	"Cannot delete AFS filesystem %s: Operation not supported",
eb63ae5f	363	before[FS_NAME]);
eb63ae5f	364	return;
eb63ae5f	365	}
3b1e9c5f	366
	367	if (!acreate)
	368	return;
	369
	370	/* Are we dealing with AFS lockers (could be type ERR lockers) */
	371	if (!atype && !btype)
	372	if (strcmp(before[FS_TYPE], "ERR") \|\| strcmp(after[FS_TYPE], "ERR"))
	373	return;
	374
	375	/* By now, we know we are simply changing AFS filesystem attributes.
	376	* Operations supported:
	377	* Name change: rename/remount
	378	* Path change: remount
	379	* Type change: ERR<-->AFS
	380	*/
0f82335a	381
0f82335a	382	#if 0
3b1e9c5f	383	if (strcmp(before[FS_OWNER], after[FS_OWNER]) \|\|
3ae9c0f3	384	strcmp(before[FS_OWNERS], after[FS_OWNERS]))
3b1e9c5f	385	{
	386	critical_alert("incremental",
	387	"Cannot change ownership of filesystem %s: Operation not yet supported",
	388	after[FS_NAME]);
	389	}
0f82335a	390	#endif
3b1e9c5f	391
	392	sprintf(cmd, "%s/perl -I%s %s/afs_rename.pl %s %s %s %s %s %s %s %s %s %s",
	393	BIN_DIR, BIN_DIR, BIN_DIR,
3ae9c0f3	394	before[FS_NAME], before[FS_MACHINE], before[FS_TYPE],
3b1e9c5f	395	before[FS_L_TYPE], before[FS_PACK],
3ae9c0f3	396	after[FS_NAME], after[FS_MACHINE], after[FS_TYPE],
3b1e9c5f	397	after[FS_L_TYPE], after[FS_PACK]);
3b1e9c5f	398	run_cmd(cmd);
eb63ae5f	399	}
	400
	401
	402	do_quota(before, beforec, after, afterc)
	403	char **before;
	404	int beforec;
	405	char **after;
	406	int afterc;
	407	{
	408	char cmd[1024];
	409
	410	if (afterc < Q_DIRECTORY \|\| strcmp("ANY", after[Q_TYPE]) \|\|
	411	strncmp("/afs/", after[Q_DIRECTORY], 5))
	412	return;
	413
	414	sprintf(cmd, "%s/perl -I%s %s/afs_quota.pl %s %s",
	415	BIN_DIR, BIN_DIR, BIN_DIR,
	416	after[Q_DIRECTORY], after[Q_QUOTA]);
	417	run_cmd(cmd);
	418	return;
	419	}
	420
	421
	422	run_cmd(cmd)
	423	char *cmd;
	424	{
	425	int success=0, tries=0;
	426
	427	check_afs();
	428
	429	while (success == 0 && tries < 2) {
	430	if (tries++)
	431	sleep(90);
	432	com_err(whoami, 0, "Executing command: %s", cmd);
	433	if (system(cmd) == 0)
	434	success++;
	435	}
	436	if (!success)
	437	critical_alert("incremental", "failed command: %s", cmd);
	438	}
	439
	440
	441	add_user_lists(ac, av, user)
	442	int ac;
	443	char *av[];
	444	char *user;
	445	{
2cb1f02c	446	if (atoi(av[L_ACTIVE]) && atoi(av[L_GROUP])) /* active group ? */
2cb1f02c	447	edit_group(1, av[L_NAME], "USER", user);
eb63ae5f	448	}
	449
	450
ed9a5300	451	get_members(ac, av, group)
	452	int ac;
	453	char *av[];
	454	char *group;
	455	{
	456	int code=0;
	457
2cb1f02c	458	code = mr_query("get_end_members_of_list", 1, &av[1], get_members, group);
	459	if (code)
	460	critical_alert("incremental",
	461	"Couldn't retrieve full membership of %s: %s",
	462	group, error_message(code));
ed9a5300	463	return code;
	464	}
	465
	466
c69d9f2c	467	check_user(ac, av, ustate)
	468	int ac;
	469	char *av[];
	470	int *ustate;
	471	{
2cb1f02c	472	*ustate = atoi(av[U_STATE]);
c69d9f2c	473	}
	474
	475
ed9a5300	476	edit_group(op, group, type, member)
	477	int op;
	478	char *group;
	479	char *type;
	480	char *member;
	481	{
	482	char *p = 0;
	483	char buf[PR_MAXNAMELEN];
c69d9f2c	484	int code, ustate;
d1be2e3a	485	static char local_realm[REALM_SZ+1] = "";
2cb1f02c	486	struct member *m;
ed9a5300	487
60c22e5f	488	/* The following KERBEROS code allows for the use of entities
	489	* user@foreign_cell.
	490	*/
d1be2e3a	491	if (!local_realm[0])
d1be2e3a	492	krb_get_lrealm(local_realm, 1);
ed9a5300	493	if (!strcmp(type, "KERBEROS")) {
ed9a5300	494	p = index(member, '@');
d1be2e3a	495	if (p && !strcasecmp(p+1, local_realm))
60c22e5f	496	*p = 0;
ed9a5300	497	} else if (strcmp(type, "USER"))
ed9a5300	498	return; /* invalid type */
60c22e5f	499
2cb1f02c	500	/* Cannot risk doing another query during a callback */
	501	/* We could do this simply for type USER, but eventually this may also
	502	* dynamically add KERBEROS types to the prdb, and we will need to do
	503	* a query to look up the uid of the null-instance user */
	504	if (mr_connections) {
	505	m = (struct member *)malloc(sizeof(struct member));
	506	if (!m) {
	507	critical_alert("incremental", "Out of memory");
	508	exit(1);
	509	}
	510	m->op = op;
	511	strcpy(m->list, group);
	512	strcpy(m->type, type);
	513	strcpy(m->member, member);
	514	m->next = member_head;
	515	member_head = m;
	516	return;
	517	}
	518
ed9a5300	519	strcpy(buf, "system:");
ed9a5300	520	strcat(buf, group);
eb63ae5f	521	code=pr_try(op ? pr_AddToGroup : pr_RemoveUserFromGroup, member, buf);
ed9a5300	522	if (code) {
c69d9f2c	523	if (op==1 && code == PRIDEXIST) return; /* Already added */
	524
	525	if (code == PRNOENT) { /* Something is missing */
	526	if (op==0) return; /* Already deleted */
	527	if (!strcmp(type, "KERBEROS")) /* Special instances; ok */
	528	return;
	529
	530	/* Check whether the member being added is an active user */
14d69e25	531	code = moira_connect();
c69d9f2c	532	if (!code) code = mr_query("get_user_by_login", 1, &member,
	533	check_user, &ustate);
	534	if (code) {
	535	critical_alert("incremental",
	536	"Error contacting Moira server to lookup user %s: %s",
	537	member, error_message(code));
	538	}
14d69e25	539	moira_disconnect();
c69d9f2c	540	if (!code && ustate!=1 && ustate!=2) return; /* inactive user */
60c22e5f	541	}
c69d9f2c	542
	543	critical_alert("incremental",
	544	"Couldn't %s %s %s %s: %s",
	545	op ? "add" : "remove", member,
	546	op ? "to" : "from", buf,
	547	error_message(code));
57bc9f26	548	}
fb8809f4	549	}
	550
	551
eb63ae5f	552	long pr_try(fn, a1, a2, a3, a4, a5, a6, a7, a8)
	553	long (*fn)();
	554	char a1, a2, a3, a4, a5, a6, a7, a8;
fb8809f4	555	{
eb63ae5f	556	static int initd=0;
16838ad1	557	volatile register long code;
eb63ae5f	558	register int tries = 0;
	559	#ifdef DEBUG
	560	char fname[64];
	561	#endif
	562
	563	check_afs();
60c22e5f	564
eb63ae5f	565	if (!initd) {
	566	code=pr_Initialize(1, AFSCONF_CLIENTNAME, 0);
	567	if (code) {
	568	critical_alert("incremental", "Couldn't initialize libprot: %s",
	569	error_message(code));
60c22e5f	570	return;
eb63ae5f	571	}
eb63ae5f	572	initd = 1;
9b9540a1	573	}
16838ad1	574	sleep(1); /* give ptserver room */
9b9540a1	575
eb63ae5f	576	while (code = (*fn)(a1, a2, a3, a4, a5, a6, a7, a8)) {
	577	#ifdef DEBUG
	578	long t;
	579	t = time(0);
	580	if (fn == pr_AddToGroup) strcpy(fname, "pr_AddToGroup");
	581	else if (fn == pr_RemoveUserFromGroup)
	582	strcpy(fname, "pr_RemoveUserFromGroup");
	583	else if (fn == pr_CreateUser) strcpy(fname, "pr_CreateUser");
	584	else if (fn == pr_CreateGroup) strcpy(fname, "pr_CreateGroup");
	585	else if (fn == pr_DeleteByID) strcpy(fname, "pr_DeleteByID");
	586	else if (fn == pr_ChangeEntry) strcpy(fname, "pr_ChangeEntry");
	587	else if (fn == pr_SetFieldsEntry) strcpy(fname, "pr_SetFieldsEntry");
	588	else if (fn == pr_AddToGroup) strcpy(fname, "pr_AddToGroup");
16838ad1	589	else
eb63ae5f	590	sprintf(fname, "pr_??? (0x%08x)", (long)fn);
eb63ae5f	591
16838ad1	592	com_err(whoami, code, "- %s failed (try %d @%u)", fname, tries+1, t);
eb63ae5f	593	#endif
16838ad1	594	if (++tries > 2) break; /* 3 tries */
	595
	596	if (code == UNOQUORUM) sleep(90);
	597	else sleep(15);
	598
	599	/* Re-initialize the prdb connection */
	600	code=pr_Initialize(0, AFSCONF_CLIENTNAME, 0);
	601	if (!code) code=pr_Initialize(1, AFSCONF_CLIENTNAME, 0);
	602	if (code) {
	603	critical_alert("incremental", "Couldn't re-initialize libprot: %s",
	604	error_message(code));
	605	initd = 0; /* we lost */
	606	break;
	607	}
9b9540a1	608	}
eb63ae5f	609	return code;
fb8809f4	610	}
	611
	612
eb63ae5f	613	check_afs()
fb8809f4	614	{
eb63ae5f	615	int i;
	616
	617	for (i=0; file_exists(STOP_FILE); i++) {
	618	if (i > 30) {
	619	critical_alert("incremental",
	620	"AFS incremental failed (%s exists): %s",
	621	STOP_FILE, tbl_buf);
	622	exit(1);
	623	}
	624	sleep(60);
	625	}
fb8809f4	626	}
14d69e25	627
14d69e25	628
14d69e25	629	moira_connect()
	630	{
	631	static char hostname[64];
	632	long code;
	633
	634	if (!mr_connections++) {
	635	gethostname(hostname, sizeof(hostname));
	636	code = mr_connect(hostname);
	637	if (!code) code = mr_auth("afs.incr");
	638	return code;
	639	}
	640	return 0;
	641	}
	642
	643	moira_disconnect()
	644	{
2cb1f02c	645	struct member *m;
2cb1f02c	646
14d69e25	647	if (!--mr_connections) {
0415047d	648	while(member_head) {
0415047d	649	m = member_head;
2cb1f02c	650	edit_group(m->op, m->list, m->type, m->member);
	651	member_head = m->next;
	652	free(m);
	653	}
14d69e25	654	mr_disconnect();
	655	}
	656	return 0;
	657	}