/* * $Id: aklog_main.c,v 1.4 2001/05/24 21:47:19 kolya Exp $ * * Copyright 1990,1991 by the Massachusetts Institute of Technology * For distribution and copying rights, see the file "mit-copyright.h" */ #if !defined(lint) && !defined(SABER) static char *rcsid = "$Id: aklog_main.c,v 1.4 2001/05/24 21:47:19 kolya Exp $"; #endif /* lint || SABER */ #include #include #include #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_MEMORY_H #include #endif #include #include #include #ifndef WINDOWS #include #include #include #include #include #include #include #endif /* WINDOWS */ /* on AIX AFS has an unresolved reference to osi_audit. We will define * it here as extern. It also trys to call the ntohl and htonl routines * as routines rather then macros. We need a real routine here. * We do this before the ntohl and htonl macros are defined in net/in.h */ int osi_audit() { return(0);} #if 0 #ifdef _AIX u_long htonl(u_long x) { return(x);} u_long ntohl(u_long x) { return(x);} #endif #include /* #include */ #endif /* 0 */ #include #ifdef WINDOWS #ifdef PRE_AFS35 #include "afs_tokens.h" #include "rxkad.h" #else /* !PRE_AFS35 */ #include #include #include #endif /* PRE_AFS35 */ #else /* !WINDOWS */ #include #if 0 #include #endif #include #ifdef AFS_SUN5_ENV #include #endif #include #include #include #include #include #endif /* WINDOWS */ #include "aklog.h" #include "linked_list.h" #define AFSKEY "afs" #define AFSINST "" #define AKLOG_SUCCESS 0 #define AKLOG_USAGE 1 #define AKLOG_SOMETHINGSWRONG 2 #define AKLOG_AFS 3 #define AKLOG_KERBEROS 4 #define AKLOG_TOKEN 5 #define AKLOG_BADPATH 6 #define AKLOG_MISC 7 #ifndef NULL #define NULL 0 #endif #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif #ifndef MAXSYMLINKS /* RedHat 4.x doesn't seem to define this */ #define MAXSYMLINKS 5 #endif #define DIR '/' /* Character that divides directories */ #define DIRSTRING "/" /* String form of above */ #define VOLMARKER ':' /* Character separating cellname from mntpt */ #define VOLMARKERSTRING ":" /* String form of above */ typedef struct { char cell[BUFSIZ]; char realm[REALM_SZ]; } cellinfo_t; struct afsconf_cell ak_cellconfig; /* General information about the cell */ static char linkedcell[MAXCELLCHARS+1]; static char linkedcell2[MAXCELLCHARS+1]; #ifdef WINDOWS /* libafsconf.dll */ extern long cm_GetRootCellName(); extern long cm_SearchCellFile(); static long cm_SearchCellFile_CallBack(); #else /* !WINDOWS */ /* * Why doesn't AFS provide these prototypes? */ extern int afsconf_GetLocalCell(struct afsconf_dir *, char *, afs_int32); extern int afsconf_GetCellInfo(struct afsconf_dir *, char *, char *, struct afsconf_cell *); extern int afsconf_Close(struct afsconf_dir *); extern int ktc_GetToken(struct ktc_principal *, struct ktc_token *, int, struct ktc_principal *); extern int ktc_SetToken(struct ktc_principal *, struct ktc_token *, struct ktc_principal *, int); extern afs_int32 pr_Initialize(afs_int32, char *, char *, afs_int32); extern int pr_SNameToId(char *, afs_int32 *); extern int pr_CreateUser(char *, afs_int32 *); extern int pr_End(); extern int pioctl(char *, afs_int32, struct ViceIoctl *, afs_int32); /* * Other prototypes */ extern void krb524_init_ets(krb5_context); extern char *afs_realm_of_cell(krb5_context, struct afsconf_cell *); #endif /* WINDOWS */ /* * Provide a replacement for strerror if we don't have it */ #ifndef HAVE_STRERROR extern char *sys_errlist[]; #define strerror(x) sys_errlist[x] #endif /* HAVE_STRERROR */ static aklog_params params; /* Various aklog functions */ static char msgbuf[BUFSIZ]; /* String for constructing error messages */ static char *progname = NULL; /* Name of this program */ static int dflag = FALSE; /* Give debugging information */ static int noauth = FALSE; /* If true, don't try to get tokens */ static int zsubs = FALSE; /* Are we keeping track of zephyr subs? */ static int hosts = FALSE; /* Are we keeping track of hosts? */ static int noprdb = FALSE; /* Skip resolving name to id? */ static int linked = FALSE; /* try for both AFS nodes */ static int afssetpag = FALSE; /* setpag for AFS */ static int force = FALSE; /* Bash identical tokens? */ static linked_list zsublist; /* List of zephyr subscriptions */ static linked_list hostlist; /* List of host addresses */ static linked_list authedcells; /* List of cells already logged to */ /* ANL - CMU lifetime convert routine */ /* for K5.4.1 don't use this for now. Need to see if it is needed */ /* maybe needed in the krb524d module as well */ /* extern unsigned long krb_life_to_time(); */ #ifdef __STDC__ static char *copy_cellinfo(cellinfo_t *cellinfo) #else static char *copy_cellinfo(cellinfo) cellinfo_t *cellinfo; #endif /* __STDC__ */ { cellinfo_t *new_cellinfo; if ((new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t)))) memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t)); return ((char *)new_cellinfo); } #ifdef __STDC__ static char *copy_string(char *string) #else static char *copy_string(string) char *string; #endif /* __STDC__ */ { char *new_string; if ((new_string = (char *)calloc(strlen(string) + 1, sizeof(char)))) (void) strcpy(new_string, string); return (new_string); } #ifdef __STDC__ static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig, char *local_cell, char *linkedcell) #else static int get_cellconfig(cell, cellconfig, local_cell, linkedcell) char *cell; struct afsconf_cell *cellconfig; char *local_cell; char *linkedcell; #endif /* __STDC__ */ { int status = AKLOG_SUCCESS; struct afsconf_dir *configdir; memset(local_cell, 0, sizeof(local_cell)); memset((char *)cellconfig, 0, sizeof(*cellconfig)); #ifndef WINDOWS #ifndef AFSCONF_CLIENTNAME #define AFSCONF_CLIENTNAME "/usr/vice/etc" #endif if (!(configdir = afsconf_Open(AFSCONF_CLIENTNAME))) { sprintf(msgbuf, "%s: can't get afs configuration (afsconf_Open(%s))\n", progname, AFSCONF_CLIENTNAME); params.pstderr(msgbuf); params.exitprog(AKLOG_AFS); } if (afsconf_GetLocalCell(configdir, local_cell, MAXCELLCHARS)) { sprintf(msgbuf, "%s: can't determine local cell.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_AFS); } if ((cell == NULL) || (cell[0] == 0)) cell = local_cell; linkedcell[0] = '\0'; if (afsconf_GetCellInfo(configdir, cell, NULL, cellconfig)) { sprintf(msgbuf, "%s: Can't get information about cell %s.\n", progname, cell); params.pstderr(msgbuf); status = AKLOG_AFS; } if (cellconfig->linkedCell) strncpy(linkedcell,cellconfig->linkedCell,MAXCELLCHARS); (void) afsconf_Close(configdir); #else /* WINDOWS */ /* * We'll try to mimic the GetCellInfo call here and fill in as much * of the afsconf_cell structure as we can. */ if (cm_GetRootCellName(local_cell)) { sprintf(msgbuf, "%s: can't get local cellname\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_AFS); } if ((cell == NULL) || (cell[0] == 0)) cell = local_cell; strcpy(cellconfig->name, cell); /* No way of figuring this out as far as I can tell */ linkedcell[0] = '\0'; /* Initialize server info */ cellconfig->numServers = 0; cellconfig->hostName[0][0] = "\0"; /* * Get servers of cell. cm_SearchCellFile_CallBack() gets call with * each server. */ #ifdef PRE_AFS35 status = (int) cm_SearchCellFile(cell, &cm_SearchCellFile_CallBack, #else status = (int) cm_SearchCellFile(cell, NULL, &cm_SearchCellFile_CallBack, #endif cellconfig /* rock */); switch(status) { case 0: break; case -1: sprintf(msgbuf, "%s: GetWindowsDirectory() failed.\n", progname); break; case -2: sprintf(msgbuf, "%s: Couldn't open afsdcells.ini for reading\n", progname); break; case -3: sprintf(msgbuf, "%s: Couldn't find any servers for cell %s\n", progname, cell); break; case -4: sprintf(msgbuf, "%s: Badly formatted line in afsdcells.ini (does not begin with a \">\" or contain \"#\"\n", progname); break; default: sprintf(msgbuf, "%s cm_SearchCellFile returned unknown error %d\n", status); } if (status) { params.pstderr(msgbuf); params.exitprog(AKLOG_AFS); } status = AKLOG_SUCCESS; #endif /* WINDOWS */ return(status); } #ifdef WINDOWS /* * Callback function for cm_SearchCellFile() in get_cellconfig() above. * This function gets called once for each server that is found for the cell. */ static long cm_SearchCellFile_CallBack(void *rock /* cellconfig */, struct sockaddr_in *addr, /* Not used */ char *server) { struct afsconf_cell *cellconfig = rock; /* * Save server name and increment count of servers */ strcpy(cellconfig->hostName[cellconfig->numServers++], server); return (long) 0; } #endif /* WINDOWS */ /* * Log to a cell. If the cell has already been logged to, return without * doing anything. Otherwise, log to it and mark that it has been logged * to. */ #ifdef __STDC__ static int auth_to_cell(krb5_context context, char *cell, char *realm) #else static int auth_to_cell(context, cell, realm) krb5_context context; char *cell; char *realm; #endif /* __STDC__ */ { int status = AKLOG_SUCCESS; char username[BUFSIZ]; /* To hold client username structure */ long viceId; /* AFS uid of user */ char name[ANAME_SZ]; /* Name of afs key */ char instance[INST_SZ]; /* Instance of afs key */ char realm_of_user[REALM_SZ]; /* Kerberos realm of user */ char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */ char local_cell[MAXCELLCHARS+1]; char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */ static char lastcell[MAXCELLCHARS+1] = { 0 }; #ifndef WINDOWS static char confname[512] = AFSCONF_CLIENTNAME; #endif krb5_creds *v5cred = NULL; CREDENTIALS c; struct ktc_principal aserver; struct ktc_principal aclient; struct ktc_token atoken, btoken; #ifdef ALLOW_REGISTER afs_int32 id; #endif /* ALLOW_REGISTER */ memset(name, 0, sizeof(name)); memset(instance, 0, sizeof(instance)); memset(realm_of_user, 0, sizeof(realm_of_user)); memset(realm_of_cell, 0, sizeof(realm_of_cell)); /* NULL or empty cell returns information on local cell */ if ((status = get_cellconfig(cell, &ak_cellconfig, local_cell, linkedcell))) return(status); strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS); cell_to_use[MAXCELLCHARS] = 0; if (ll_string(&authedcells, ll_s_check, cell_to_use)) { if (dflag) { sprintf(msgbuf, "Already authenticated to %s (or tried to)\n", cell_to_use); params.pstdout(msgbuf); } return(AKLOG_SUCCESS); } /* * Record that we have attempted to log to this cell. We do this * before we try rather than after so that we will not try * and fail repeatedly for one cell. */ (void)ll_string(&authedcells, ll_s_add, cell_to_use); /* * Record this cell in the list of zephyr subscriptions. We may * want zephyr subscriptions even if authentication fails. * If this is done after we attempt to get tokens, aklog -zsubs * can return something different depending on whether or not we * are in -noauth mode. */ if (ll_string(&zsublist, ll_s_add, cell_to_use) == LL_FAILURE) { sprintf(msgbuf, "%s: failure adding cell %s to zephyr subscriptions list.\n", progname, cell_to_use); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } if (ll_string(&zsublist, ll_s_add, local_cell) == LL_FAILURE) { sprintf(msgbuf, "%s: failure adding cell %s to zephyr subscriptions list.\n", progname, local_cell); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } if (!noauth) { if (dflag) { sprintf(msgbuf, "Authenticating to cell %s (server %s).\n", cell_to_use, ak_cellconfig.hostName[0]); params.pstdout(msgbuf); } /* * Find out which realm we're supposed to authenticate to. If one * is not included, use the kerberos realm found in the credentials * cache. */ if (realm && realm[0]) { strcpy(realm_of_cell, realm); if (dflag) { sprintf(msgbuf, "We were told to authenticate to realm %s.\n", realm); params.pstdout(msgbuf); } } else { char *realm = afs_realm_of_cell(context, &ak_cellconfig); if (!realm) { sprintf(msgbuf, "%s: Couldn't figure out realm for cell %s.\n", progname, cell_to_use); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } strcpy(realm_of_cell, realm); if (dflag) { sprintf(msgbuf, "We've deduced that we need to authenticate to" " realm %s.\n", realm_of_cell); params.pstdout(msgbuf); } } /* We use the afs. convention here... * * Doug Engert's original code had principals of the form: * * "afsx/cell@realm" * * in the KDC, so the name wouldn't conflict with DFS. Since we're * not using DFS, I changed it just to look for the following * principals: * * afs/@ * afs@ * * However, if "cell" == "realm", the first lookup is not done. * */ /* We modify this behavior to always check afs/@, even * if the cell and the realm have the same name. Needed if we want * to be able to authenticate to the athena.mit.edu cell. */ strcpy(name, AFSKEY); strncpy(instance, cell_to_use, sizeof(instance)); instance[sizeof(instance)-1] = '\0'; /* if (strcasecmp(cell_to_use, realm_of_cell) != 0) { * strncpy(instance, cell_to_use, sizeof(instance)); * instance[sizeof(instance)-1] = '\0'; * } else { * instance[0] = '\0'; * } /* * Extract the session key from the ticket file and hand-frob an * afs style authenticator. */ /* * Try to obtain AFS tickets. Because there are two valid service * names, we will try both, but trying the more specific first. * * afs/@ i.e. allow for single name with "." * afs@ */ #if 0 if (dflag) { dee_gettokens(); /* DEBUG */ } #endif if (dflag) { sprintf(msgbuf, "Getting tickets: %s/%s@%s\n", name, instance, realm_of_cell); params.pstdout(msgbuf); } status = params.get_cred(context, name, instance, realm_of_cell, &c, &v5cred); if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) { if (instance[0] != '\0') { status = params.get_cred(context, name, "", realm_of_cell, &c, &v5cred); } } if (status != KSUCCESS) { if (dflag) { sprintf(msgbuf, "Kerberos error code returned by get_cred: %d\n", status); params.pstdout(msgbuf); } sprintf(msgbuf, "%s: Couldn't get %s AFS tickets:\n", progname, cell_to_use); params.pstderr(msgbuf); com_err(progname, status, "while getting AFS tickets"); return(AKLOG_KERBEROS); } strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1); strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1); strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1); strcpy (username, c.pname); if (c.pinst[0]) { strcat (username, "."); strcat (username, c.pinst); } atoken.kvno = c.kvno; atoken.startTime = c.issue_date; /* * It seems silly to go through a bunch of contortions to * extract the expiration time, when the v5 credentials already * has the exact time! Let's use that instead. * * Note that this isn't a security hole, as the expiration time * is also contained in the encrypted token */ atoken.endTime = v5cred->times.endtime; memcpy(&atoken.sessionKey, c.session, 8); atoken.ticketLen = c.ticket_st.length; memcpy(atoken.ticket, c.ticket_st.dat, atoken.ticketLen); if (!force && !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) && atoken.kvno == btoken.kvno && atoken.ticketLen == btoken.ticketLen && !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) && !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen)) { if (dflag) { sprintf(msgbuf, "Identical tokens already exist; skipping.\n"); params.pstdout(msgbuf); } return 0; } #ifdef FORCE_NOPRDB noprdb = 1; #endif #ifndef WINDOWS if (noprdb) { #endif if (dflag) { sprintf(msgbuf, "Not resolving name %s to id (-noprdb set)\n", username); params.pstdout(msgbuf); } #ifndef WINDOWS } else { if ((status = params.get_user_realm(context, realm_of_user)) != KSUCCESS) { sprintf(msgbuf, "%s: Couldn't determine realm of user:)", progname); params.pstderr(msgbuf); com_err(progname, status, " while getting realm"); return(AKLOG_KERBEROS); } if (strcmp(realm_of_user, realm_of_cell)) { strcat(username, "@"); strcat(username, realm_of_user); } if (dflag) { sprintf(msgbuf, "About to resolve name %s to id in cell %s.\n", username, aserver.cell); params.pstdout(msgbuf); } /* * Talk about DUMB! It turns out that there is a bug in * pr_Initialize -- even if you give a different cell name * to it, it still uses a connection to a previous AFS server * if one exists. The way to fix this is to change the * _filename_ argument to pr_Initialize - that forces it to * re-initialize the connection. We do this by adding and * removing a "/" on the end of the configuration directory name. */ if (lastcell[0] != '\0' && (strcmp(lastcell, aserver.cell) != 0)) { int i = strlen(confname); if (confname[i - 1] == '/') { confname[i - 1] = '\0'; } else { confname[i] = '/'; confname[i + 1] = '\0'; } } strcpy(lastcell, aserver.cell); if (!pr_Initialize (0, confname, aserver.cell, 0)) status = pr_SNameToId (username, &viceId); if (dflag) { if (status) sprintf(msgbuf, "Error %d\n", status); else sprintf(msgbuf, "Id %d\n", (int) viceId); params.pstdout(msgbuf); } /* * This is a crock, but it is Transarc's crock, so * we have to play along in order to get the * functionality. The way the afs id is stored is * as a string in the username field of the token. * Contrary to what you may think by looking at * the code for tokens, this hack (AFS ID %d) will * not work if you change %d to something else. */ /* * This code is taken from cklog -- it lets people * automatically register with the ptserver in foreign cells */ #ifdef ALLOW_REGISTER if (status == 0) { if (viceId != ANONYMOUSID) { #else /* ALLOW_REGISTER */ if ((status == 0) && (viceId != ANONYMOUSID)) #endif /* ALLOW_REGISTER */ sprintf (username, "AFS ID %d", (int) viceId); #ifdef ALLOW_REGISTER } else if (strcmp(realm_of_user, realm_of_cell) != 0) { if (dflag) { sprintf(msgbuf, "doing first-time registration of %s " "at %s\n", username, cell_to_use); params.pstdout(msgbuf); } id = 0; strncpy(aclient.name, username, MAXKTCNAMELEN - 1); strcpy(aclient.instance, ""); strncpy(aclient.cell, c.realm, MAXKTCREALMLEN - 1); if ((status = ktc_SetToken(&aserver, &atoken, &aclient, 0))) { sprintf(msgbuf, "%s: unable to obtain tokens for cell %s " "(status: %d).\n", progname, cell_to_use, status); params.pstderr(msgbuf); status = AKLOG_TOKEN; } /* * In case you're wondering, we don't need to change the * filename here because we're still connecting to the * same cell -- we're just using a different authentication * level */ if ((status = pr_Initialize(1L, confname, aserver.cell, 0))) { sprintf(msgbuf, "Error %d\n", status); params.pstdout(msgbuf); } if ((status = pr_CreateUser(username, &id))) { sprintf(msgbuf, "%s: %s so unable to create remote PTS " "user %s in cell %s (status: %d).\n", progname, error_message(status), username, cell_to_use, status); params.pstdout(msgbuf); } else { sprintf(msgbuf, "created cross-cell entry for %s at %s\n", username, cell_to_use); params.pstdout(msgbuf); sprintf(username, "AFS ID %d", (int) id); } } } #endif /* ALLOW_REGISTER */ } #endif /* !WINDOWS */ if (dflag) { sprintf(msgbuf, "Set username to %s\n", username); params.pstdout(msgbuf); } /* Reset the "aclient" structure before we call ktc_SetToken. * This structure was first set by the ktc_GetToken call when * we were comparing whether identical tokens already existed. */ strncpy(aclient.name, username, MAXKTCNAMELEN - 1); strcpy(aclient.instance, ""); strncpy(aclient.cell, c.realm, MAXKTCREALMLEN - 1); if (dflag) { sprintf(msgbuf, "Setting tokens. %s / %s @ %s \n", aclient.name, aclient.instance, aclient.cell ); params.pstdout(msgbuf); } /* on AIX 4.1.4 with AFS 3.4a+ if a write is not done before * this routine, it will not add the token. It is not clear what * is going on here! So we will do the following operation */ write(2,"",0); /* dummy write */ #ifndef WINDOWS if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) { sprintf(msgbuf, "%s: unable to obtain tokens for cell %s (status: %d).\n", progname, cell_to_use, status); params.pstderr(msgbuf); status = AKLOG_TOKEN; } #else /* WINDOWS */ /* Note switched 2nd and 3rd args */ #ifdef PRE_AFS35 if ((status = ktc_SetToken(&aserver, &aclient, &atoken, afssetpag))) { #else if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) { #endif switch(status) { case KTC_INVAL: sprintf(msgbuf, "%s: Bad ticket length", progname); break; case KTC_PIOCTLFAIL: sprintf(msgbuf, "%s: Unknown error contacting AFS service", progname); break; case KTC_NOCELL: sprintf(msgbuf, "%s: Cell name (%s) not recognized by AFS service", progname, realm_of_cell); break; case KTC_NOCM: sprintf(msgbuf, "%s: AFS service is unavailable", progname); break; default: sprintf(msgbuf, "%s: Undocumented error (%d) contacting AFS service", progname, status); break; } params.pstderr(msgbuf); status = AKLOG_TOKEN; } #endif /* !WINDOWS */ } else if (dflag) { sprintf(msgbuf, "Noauth mode; not authenticating.\n"); params.pstdout(msgbuf); } return(status); } #ifndef WINDOWS /* struct ViceIoctl missing */ #ifdef __STDC__ static int get_afs_mountpoint(char *file, char *mountpoint, int size) #else static int get_afs_mountpoint(file, mountpoint, size) char *file; char *mountpoint; int size; #endif /* __STDC__ */ { #ifdef AFS_SUN_ENV char V ='V'; /* AFS has problem on Sun with pioctl */ #endif char our_file[MAXPATHLEN + 1]; char *parent_dir; char *last_component; struct ViceIoctl vio; char cellname[BUFSIZ]; memset(our_file, 0, sizeof(our_file)); strcpy(our_file, file); if ((last_component = strrchr(our_file, DIR))) { *last_component++ = 0; parent_dir = our_file; } else { last_component = our_file; parent_dir = "."; } memset(cellname, 0, sizeof(cellname)); vio.in = last_component; vio.in_size = strlen(last_component)+1; vio.out_size = size; vio.out = mountpoint; if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0)) { if (strchr(mountpoint, VOLMARKER) == NULL) { vio.in = file; vio.in_size = strlen(file) + 1; vio.out_size = sizeof(cellname); vio.out = cellname; if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1)) { strcat(cellname, VOLMARKERSTRING); strcat(cellname, mountpoint + 1); memset(mountpoint + 1, 0, size - 1); strcpy(mountpoint + 1, cellname); } } return(TRUE); } else return(FALSE); } /* * This routine each time it is called returns the next directory * down a pathname. It resolves all symbolic links. The first time * it is called, it should be called with the name of the path * to be descended. After that, it should be called with the arguemnt * NULL. */ #ifdef __STDC__ static char *next_path(char *origpath) #else static char *next_path(origpath) char *origpath; #endif /* __STDC__ */ { static char path[MAXPATHLEN + 1]; static char pathtocheck[MAXPATHLEN + 1]; int link = FALSE; /* Is this a symbolic link? */ char linkbuf[MAXPATHLEN + 1]; char tmpbuf[MAXPATHLEN + 1]; static char *last_comp; /* last component of directory name */ static char *elast_comp; /* End of last component */ char *t; int len; static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */ /* If we are given something for origpath, we are initializing only. */ if (origpath) { memset(path, 0, sizeof(path)); memset(pathtocheck, 0, sizeof(pathtocheck)); strcpy(path, origpath); last_comp = path; symlinkcount = 0; return(NULL); } /* We were not given origpath; find then next path to check */ /* If we've gotten all the way through already, return NULL */ if (last_comp == NULL) return(NULL); do { while (*last_comp == DIR) strncat(pathtocheck, last_comp++, 1); len = (elast_comp = strchr(last_comp, DIR)) ? elast_comp - last_comp : strlen(last_comp); strncat(pathtocheck, last_comp, len); memset(linkbuf, 0, sizeof(linkbuf)); if ((link = (params.readlink(pathtocheck, linkbuf, sizeof(linkbuf)) > 0))) { if (++symlinkcount > MAXSYMLINKS) { sprintf(msgbuf, "%s: %s\n", progname, strerror(ELOOP)); params.pstderr(msgbuf); params.exitprog(AKLOG_BADPATH); } memset(tmpbuf, 0, sizeof(tmpbuf)); if (elast_comp) strcpy(tmpbuf, elast_comp); if (linkbuf[0] == DIR) { /* * If this is a symbolic link to an absolute path, * replace what we have by the absolute path. */ memset(path, 0, strlen(path)); memcpy(path, linkbuf, sizeof(linkbuf)); strcat(path, tmpbuf); last_comp = path; elast_comp = NULL; memset(pathtocheck, 0, sizeof(pathtocheck)); } else { /* * If this is a symbolic link to a relative path, * replace only the last component with the link name. */ strncpy(last_comp, linkbuf, strlen(linkbuf) + 1); strcat(path, tmpbuf); elast_comp = NULL; if ((t = strrchr(pathtocheck, DIR))) { t++; memset(t, 0, strlen(t)); } else memset(pathtocheck, 0, sizeof(pathtocheck)); } } else last_comp = elast_comp; } while(link); return(pathtocheck); } #endif /* WINDOWS */ #if 0 /*****************************************/ int dee_gettokens() { #ifdef AFS_SUN_ENV char V = 'V'; /* AFS has problem on SunOS */ #endif struct ViceIoctl vio; char outbuf[BUFSIZ]; long ind; int fd; memset(outbuf, 0, sizeof(outbuf)); vio.out_size = sizeof(outbuf); vio.in_size = sizeof(ind); vio.out = outbuf; vio.in = &ind; ind = 0; fd = open("dee.tok",O_WRONLY); while(!pioctl(0,VIOCGETTOK,&vio,0)) { write(fd,&outbuf,sizeof(outbuf)); ind++; } close(fd); } /*****************************************/ #endif #ifndef WINDOWS /* struct ViceIoctl missing */ #ifdef __STDC__ static void add_hosts(char *file) #else static void add_hosts(file) char *file; #endif /* __STDC__ */ { #ifdef AFS_SUN_ENV char V = 'V'; /* AFS has problem on SunOS */ #endif struct ViceIoctl vio; char outbuf[BUFSIZ]; long *phosts; int i; struct hostent *hp; struct in_addr in; memset(outbuf, 0, sizeof(outbuf)); vio.out_size = sizeof(outbuf); vio.in_size = 0; vio.out = outbuf; if (dflag) { sprintf(msgbuf, "Getting list of hosts for %s\n", file); params.pstdout(msgbuf); } /* Don't worry about errors. */ if (!pioctl(file, VIOCWHEREIS, &vio, 1)) { phosts = (long *) outbuf; /* * Lists hosts that we care about. If ALLHOSTS is defined, * then all hosts that you ever may possible go through are * included in this list. If not, then only hosts that are * the only ones appear. That is, if a volume you must use * is replaced on only one server, that server is included. * If it is replicated on many servers, then none are included. * This is not perfect, but the result is that people don't * get subscribed to a lot of instances of FILSRV that they * probably won't need which reduces the instances of * people getting messages that don't apply to them. */ #ifndef ALLHOSTS if (phosts[1] != '\0') return; #endif for (i = 0; phosts[i]; i++) { if (hosts) { in.s_addr = phosts[i]; if (dflag) { sprintf(msgbuf, "Got host %s\n", inet_ntoa(in)); params.pstdout(msgbuf); } ll_string(&hostlist, ll_s_add, (char *)inet_ntoa(in)); } if (zsubs && (hp=gethostbyaddr((char *) &phosts[i],sizeof(long),AF_INET))) { if (dflag) { sprintf(msgbuf, "Got host %s\n", hp->h_name); params.pstdout(msgbuf); } ll_string(&zsublist, ll_s_add, hp->h_name); } } } } #endif /* WINDOWS */ #ifndef WINDOWS /* next_path(), get_afs_mountpoint() */ /* * This routine descends through a path to a directory, logging to * every cell it encounters along the way. */ #ifdef __STDC__ static int auth_to_path(krb5_context context, char *path) #else static int auth_to_path(context, path) krb5_context context; char *path; /* The path to which we try to authenticate */ #endif /* __STDC__ */ { int status = AKLOG_SUCCESS; int auth_to_cell_status = AKLOG_SUCCESS; char *nextpath; char pathtocheck[MAXPATHLEN + 1]; char mountpoint[MAXPATHLEN + 1]; char *cell; char *endofcell; u_char isdir; /* Initialize */ if (path[0] == DIR) strcpy(pathtocheck, path); else { if (params.getwd(pathtocheck) == NULL) { sprintf(msgbuf, "Unable to find current working directory:\n"); params.pstderr(msgbuf); sprintf(msgbuf, "%s\n", pathtocheck); params.pstderr(msgbuf); sprintf(msgbuf, "Try an absolute pathname.\n"); params.pstderr(msgbuf); params.exitprog(AKLOG_BADPATH); } else { strcat(pathtocheck, DIRSTRING); strcat(pathtocheck, path); } } next_path(pathtocheck); /* Go on to the next level down the path */ while ((nextpath = next_path(NULL))) { strcpy(pathtocheck, nextpath); if (dflag) { sprintf(msgbuf, "Checking directory %s\n", pathtocheck); params.pstdout(msgbuf); } /* * If this is an afs mountpoint, determine what cell from * the mountpoint name which is of the form * #cellname:volumename or %cellname:volumename. */ if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint))) { /* skip over the '#' or '%' */ cell = mountpoint + 1; /* Add this (cell:volumename) to the list of zsubs */ if (zsubs) ll_string(&zsublist, ll_s_add, cell); if (zsubs || hosts) add_hosts(pathtocheck); if ((endofcell = strchr(mountpoint, VOLMARKER))) { *endofcell = '\0'; if ((auth_to_cell_status = auth_to_cell(context, cell, NULL))) { if (status == AKLOG_SUCCESS) status = auth_to_cell_status; else if (status != auth_to_cell_status) status = AKLOG_SOMETHINGSWRONG; } } } else { if (params.isdir(pathtocheck, &isdir) < 0) { /* * If we've logged and still can't stat, there's * a problem... */ sprintf(msgbuf, "%s: stat(%s): %s\n", progname, pathtocheck, strerror(errno)); params.pstderr(msgbuf); return(AKLOG_BADPATH); } else if (! isdir) { /* Allow only directories */ sprintf(msgbuf, "%s: %s: %s\n", progname, pathtocheck, strerror(ENOTDIR)); params.pstderr(msgbuf); return(AKLOG_BADPATH); } } } return(status); } #endif /* WINDOWS */ /* Print usage message and exit */ #ifdef __STDC__ static void usage(void) #else static void usage() #endif /* __STDC__ */ { sprintf(msgbuf, "\nUsage: %s %s%s%s\n", progname, "[-d] [[-cell | -c] cell [-k krb_realm]] ", "[[-p | -path] pathname]\n", " [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] [-linked]\n"); params.pstderr(msgbuf); sprintf(msgbuf, " -d gives debugging information.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " krb_realm is the kerberos realm of a cell.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " pathname is the name of a directory to which "); params.pstderr(msgbuf); sprintf(msgbuf, "you wish to authenticate.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " -zsubs gives zephyr subscription information.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " -hosts gives host address information.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " -noauth does not attempt to get tokens.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " -noprdb means don't try to determine AFS ID.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " -force means replace identical tickets. \n"); params.pstderr(msgbuf); sprintf(msgbuf, " -linked means if AFS node is linked, try both. \n"); params.pstderr(msgbuf); sprintf(msgbuf, " -setpag set the AFS process authentication group.\n"); params.pstderr(msgbuf); sprintf(msgbuf, " No commandline arguments means "); params.pstderr(msgbuf); sprintf(msgbuf, "authenticate to the local cell.\n"); params.pstderr(msgbuf); sprintf(msgbuf, "\n"); params.pstderr(msgbuf); params.exitprog(AKLOG_USAGE); } #ifdef __STDC__ void aklog(int argc, char *argv[], aklog_params *a_params) #else void aklog(argc, argv, a_params) int argc; char *argv[]; aklog_params *a_params; #endif /* __STDC__ */ { krb5_context context; int status = AKLOG_SUCCESS; int i; int somethingswrong = FALSE; cellinfo_t cellinfo; extern char *progname; /* Name of this program */ extern int dflag; /* Debug mode */ int cmode = FALSE; /* Cellname mode */ int pmode = FALSE; /* Path name mode */ char realm[REALM_SZ]; /* Kerberos realm of afs server */ char cell[BUFSIZ]; /* Cell to which we are authenticating */ char path[MAXPATHLEN + 1]; /* Path length for path mode */ linked_list cells; /* List of cells to log to */ linked_list paths; /* List of paths to log to */ ll_node *cur_node; memset(&cellinfo, 0, sizeof(cellinfo)); memset(realm, 0, sizeof(realm)); memset(cell, 0, sizeof(cell)); memset(path, 0, sizeof(path)); ll_init(&cells); ll_init(&paths); ll_init(&zsublist); ll_init(&hostlist); /* Store the program name here for error messages */ if ((progname = strrchr(argv[0], DIR))) progname++; else progname = argv[0]; krb5_init_context(&context); krb524_init_ets(context); #ifndef WINDOWS initialize_ktc_error_table (); #endif memcpy((char *)¶ms, (char *)a_params, sizeof(aklog_params)); /* Initialize list of cells to which we have authenticated */ (void)ll_init(&authedcells); /* Parse commandline arguments and make list of what to do. */ for (i = 1; i < argc; i++) { if (strcmp(argv[i], "-d") == 0) dflag++; else if (strcmp(argv[i], "-noauth") == 0) noauth++; else if (strcmp(argv[i], "-zsubs") == 0) zsubs++; else if (strcmp(argv[i], "-hosts") == 0) hosts++; else if (strcmp(argv[i], "-noprdb") == 0) noprdb++; else if (strcmp(argv[i], "-linked") == 0) linked++; else if (strcmp(argv[i], "-force") == 0) force++; else if (strcmp(argv[i], "-setpag") == 0) afssetpag++; else if (((strcmp(argv[i], "-cell") == 0) || (strcmp(argv[i], "-c") == 0)) && !pmode) if (++i < argc) { cmode++; strcpy(cell, argv[i]); } else usage(); else if (((strcmp(argv[i], "-path") == 0) || (strcmp(argv[i], "-p") == 0)) && !cmode) #ifndef WINDOWS if (++i < argc) { pmode++; strcpy(path, argv[i]); } else usage(); #else /* WINDOWS */ { sprintf(msgbuf, "%s: path mode not supported.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } #endif /* WINDOWS */ else if (argv[i][0] == '-') usage(); else if (!pmode && !cmode) { if (strchr(argv[i], DIR) || (strcmp(argv[i], ".") == 0) || (strcmp(argv[i], "..") == 0)) { #ifndef WINDOWS pmode++; strcpy(path, argv[i]); #else /* WINDOWS */ sprintf(msgbuf, "%s: path mode not supported.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); #endif /* WINDOWS */ } else { cmode++; strcpy(cell, argv[i]); } } else usage(); if (cmode) { if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0)) { i+=2; if (i < argc) strcpy(realm, argv[i]); else usage(); } /* Add this cell to list of cells */ strcpy(cellinfo.cell, cell); strcpy(cellinfo.realm, realm); if ((cur_node = ll_add_node(&cells, ll_tail))) { char *new_cellinfo; if ((new_cellinfo = copy_cellinfo(&cellinfo))) ll_add_data(cur_node, new_cellinfo); else { sprintf(msgbuf, "%s: failure copying cellinfo.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } } else { sprintf(msgbuf, "%s: failure adding cell to cells list.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } memset(&cellinfo, 0, sizeof(cellinfo)); cmode = FALSE; memset(cell, 0, sizeof(cell)); memset(realm, 0, sizeof(realm)); } #ifndef WINDOWS else if (pmode) { /* Add this path to list of paths */ if ((cur_node = ll_add_node(&paths, ll_tail))) { char *new_path; if ((new_path = copy_string(path))) ll_add_data(cur_node, new_path); else { sprintf(msgbuf, "%s: failure copying path name.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } } else { sprintf(msgbuf, "%s: failure adding path to paths list.\n", progname); params.pstderr(msgbuf); params.exitprog(AKLOG_MISC); } pmode = FALSE; memset(path, 0, sizeof(path)); } #endif /* WINDOWS */ } /* * The code that _used_ to be here called setpag(). When you think * about this, doing this makes no sense! setpag() allocates a PAG * only for the current process, so the token installed would have * not be usable in the parent! Since ktc_SetToken() now takes a * 4th argument to control whether or not we're going to allocate * a PAG (and since when you do it _that_ way, it modifies the cred * structure of your parent)), why don't we use that instead? */ #if 0 if (afssetpag) { status = setpag(); if (dflag) { int i,j; int gidsetlen = 50; int gidset[50]; printf("setpag %d\n",status); j = getgroups(gidsetlen,gidset); printf("Groups(%d):",j); for (i = 0; ipw_dir); strcat(xlog_path, "/.xlog"); if ((stat(xlog_path, &sbuf) == 0) && ((f = fopen(xlog_path, "r")) != NULL)) { if (dflag) { sprintf(msgbuf, "Reading %s for cells to " "authenticate to.\n", xlog_path); params.pstdout(msgbuf); } while (fgets(fcell, 100, f) != NULL) { int auth_status; fcell[strlen(fcell) - 1] = '\0'; if (dflag) { sprintf(msgbuf, "Found cell %s in %s.\n", fcell, xlog_path); params.pstdout(msgbuf); } auth_status = auth_to_cell(context, fcell, NULL); if (status == AKLOG_SUCCESS) status = auth_status; else status = AKLOG_SOMETHINGSWRONG; } } } #endif /* WINDOWS */ } else { /* Log to all cells in the cells list first */ for (cur_node = cells.first; cur_node; cur_node = cur_node->next) { memcpy((char *)&cellinfo, cur_node->data, sizeof(cellinfo)); if ((status = auth_to_cell(context, cellinfo.cell, cellinfo.realm))) somethingswrong++; else { if (linked && linkedcell[0]) { strncpy(linkedcell2,linkedcell,MAXCELLCHARS); if (dflag) { sprintf(msgbuf, "Linked cell: %s\n", linkedcell); params.pstdout(msgbuf); } if ((status = auth_to_cell(context,linkedcell2, cellinfo.realm))) somethingswrong++; } } } #ifndef WINDOWS /* Then, log to all paths in the paths list */ for (cur_node = paths.first; cur_node; cur_node = cur_node->next) { if ((status = auth_to_path(context, cur_node->data))) somethingswrong++; } #endif /* WINDOWS */ /* * If only one thing was logged to, we'll return the status * of the single call. Otherwise, we'll return a generic * something failed status. */ if (somethingswrong && ((cells.nelements + paths.nelements) > 1)) status = AKLOG_SOMETHINGSWRONG; } /* If we are keeping track of zephyr subscriptions, print them. */ if (zsubs) for (cur_node = zsublist.first; cur_node; cur_node = cur_node->next) { sprintf(msgbuf, "zsub: %s\n", cur_node->data); params.pstdout(msgbuf); } /* If we are keeping track of host information, print it. */ if (hosts) for (cur_node = hostlist.first; cur_node; cur_node = cur_node->next) { sprintf(msgbuf, "host: %s\n", cur_node->data); params.pstdout(msgbuf); } params.exitprog(status); }