diff options
Diffstat (limited to 'nis/nis_call.c')
| -rw-r--r-- | nis/nis_call.c | 251 |
1 files changed, 140 insertions, 111 deletions
diff --git a/nis/nis_call.c b/nis/nis_call.c index f25b8017a5..1dfb12944a 100644 --- a/nis/nis_call.c +++ b/nis/nis_call.c @@ -29,30 +29,7 @@ static struct timeval TIMEOUT = {10, 0}; -struct dir_binding -{ - CLIENT *clnt; /* RPC CLIENT handle */ - nis_server *server_val; /* List of servers */ - u_int server_len; /* # of servers */ - u_int server_used; /* Which server we are bind in the moment ? */ - u_int trys; /* How many server have we tried ? */ - bool_t master_only; /* Is only binded to the master */ - bool_t use_auth; /* Do we use AUTH ? */ - bool_t use_udp; /* Do we use UDP ? */ - time_t create; /* Binding creation time */ - struct sockaddr_in addr; /* Server's IP address */ - int socket; /* Server's local socket */ - unsigned short port; /* Local port */ -}; -typedef struct dir_binding dir_binding; - -static inline u_int -__nis_ping (const nis_server *serv, u_int serv_len) -{ - return 0; -} - -static unsigned long +unsigned long inetstr2int (const char *str) { char buffer[strlen (str) + 3]; @@ -92,12 +69,7 @@ __bind_destroy (dir_binding *bind) static nis_error __bind_next (dir_binding *bind) { - if (bind->trys >= bind->server_len) - return NIS_FAIL; - - bind->server_used++; - if (bind->server_used >= bind->server_len) - bind->server_used = 0; + u_int j; if (bind->clnt != NULL) { @@ -106,8 +78,38 @@ __bind_next (dir_binding *bind) clnt_destroy (bind->clnt); bind->clnt = NULL; } - - return NIS_SUCCESS; + + if (bind->trys >= bind->server_len) + return NIS_FAIL; + + for (j = bind->current_ep + 1; + j < bind->server_val[bind->server_used].ep.ep_len; ++j) + if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].family, + "inet") == 0) + if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].proto, + "-") == 0) + { + bind->current_ep = j; + return NIS_SUCCESS; + } + + ++bind->trys; + ++bind->server_used; + if (bind->server_used >= bind->server_len) + bind->server_used = 0; + + for (j = bind->current_ep + 1; + j < bind->server_val[bind->server_used].ep.ep_len; ++j) + if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].family, + "inet") == 0) + if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].proto, + "-") == 0) + { + bind->current_ep = j; + return NIS_SUCCESS; + } + + return NIS_FAIL; } static nis_error @@ -116,7 +118,6 @@ __bind_connect (dir_binding *dbp) struct sockaddr_in check; nis_server *serv; int checklen; - u_int i; if (dbp == NULL) return NIS_FAIL; @@ -125,26 +126,10 @@ __bind_connect (dir_binding *dbp) memset (&dbp->addr, '\0', sizeof (dbp->addr)); dbp->addr.sin_family = AF_INET; - for (i = 0; i < serv->ep.ep_len; ++i) - { - if (strcmp (serv->ep.ep_val[i].family, "inet") == 0) - { - if (dbp->use_udp) - { - if (strcmp (serv->ep.ep_val[i].proto, "udp") == 0) - dbp->addr.sin_addr.s_addr = - inetstr2int (serv->ep.ep_val[i].uaddr); - else - continue; - } - else - if (strcmp (serv->ep.ep_val[i].proto, "tcp") == 0) - dbp->addr.sin_addr.s_addr = - inetstr2int (serv->ep.ep_val[i].uaddr); - } - else - continue; - } + + dbp->addr.sin_addr.s_addr = + inetstr2int (serv->ep.ep_val[dbp->current_ep].uaddr); + if (dbp->addr.sin_addr.s_addr == 0) return NIS_FAIL; @@ -155,15 +140,15 @@ __bind_connect (dir_binding *dbp) else dbp->clnt = clnttcp_create (&dbp->addr, NIS_PROG, NIS_VERSION, &dbp->socket, 0, 0); - + if (dbp->clnt == NULL) return NIS_RPCERROR; - + clnt_control (dbp->clnt, CLSET_TIMEOUT, (caddr_t)&TIMEOUT); /* If the program exists, close the socket */ if (fcntl (dbp->socket, F_SETFD, 1) == -1) perror (_("fcntl: F_SETFD")); - + if (dbp->use_auth) { #if defined(HAVE_SECURE_RPC) @@ -171,7 +156,7 @@ __bind_connect (dir_binding *dbp) { char netname[MAXNETNAMELEN+1]; char *p; - + p = stpcpy (netname, "unix."); strncpy (p, serv->name,MAXNETNAMELEN-5); netname[MAXNETNAMELEN] = '\0'; @@ -187,7 +172,7 @@ __bind_connect (dir_binding *dbp) dbp->clnt->cl_auth = authunix_create_default (); dbp->use_auth = TRUE; } - + /* Get port for sanity checks later */ checklen = sizeof (struct sockaddr_in); memset (&check, 0, checklen); @@ -207,11 +192,11 @@ __bind_create (const nis_server *serv_val, u_int serv_len, u_long flags) { dir_binding *dbp; u_int i; - + dbp = calloc (1, sizeof (dir_binding)); if (dbp == NULL) return NULL; - + dbp->server_len = serv_len; dbp->server_val = calloc (1, sizeof (nis_server) * serv_len); if (dbp->server_val == NULL) @@ -219,17 +204,34 @@ __bind_create (const nis_server *serv_val, u_int serv_len, u_long flags) free (dbp); return NULL; } - + + if (flags & USE_DGRAM) + dbp->use_udp = TRUE; + else + dbp->use_udp = FALSE; + + if (flags & NO_AUTHINFO) + dbp->use_auth = FALSE; + else + dbp->use_auth = TRUE; + + if (flags & MASTER_ONLY) + dbp->master_only = TRUE; + else + dbp->master_only = FALSE; + + dbp->trys = 1; + for (i = 0; i < serv_len; ++i) { if (serv_val[i].name != NULL) dbp->server_val[i].name = strdup (serv_val[i].name); - + dbp->server_val[i].ep.ep_len = serv_val[i].ep.ep_len; if (dbp->server_val[i].ep.ep_len > 0) { unsigned long j; - + dbp->server_val[i].ep.ep_val = malloc (serv_val[i].ep.ep_len * sizeof (endpoint)); for (j = 0; j < dbp->server_val[i].ep.ep_len; ++j) @@ -267,24 +269,12 @@ __bind_create (const nis_server *serv_val, u_int serv_len, u_long flags) else dbp->server_val[i].pkey.n_bytes = NULL; } - - dbp->server_used = __nis_ping (dbp->server_val, dbp->server_len); - if (flags & USE_DGRAM) - dbp->use_udp = TRUE; - else - dbp->use_udp = FALSE; - - if (flags & NO_AUTHINFO) - dbp->use_auth = FALSE; - else - dbp->use_auth = TRUE; - if (flags & MASTER_ONLY) - dbp->master_only = TRUE; - else - dbp->master_only = FALSE; - - dbp->trys = 1; + if (__nis_findfastest (dbp) < 1) + { + __bind_destroy (dbp); + return NULL; + } return dbp; } @@ -298,10 +288,11 @@ __do_niscall2 (const nis_server *server, u_int server_len, u_long prog, nis_error retcode; dir_binding *dbp; - if (flags & MASTER_ONLY) + if (flags & MASTER_ONLY) server_len = 1; - - dbp = __bind_create (server, server_len, flags); + + if ((dbp = __bind_create (server, server_len, flags)) == NULL) + return NIS_UNAVAIL; while (__bind_connect (dbp) != NIS_SUCCESS) { if (__bind_next (dbp) != NIS_SUCCESS) @@ -315,7 +306,7 @@ __do_niscall2 (const nis_server *server, u_int server_len, u_long prog, { again: result = clnt_call (dbp->clnt, prog, xargs, req, xres, resp, TIMEOUT); - + if (result != RPC_SUCCESS) { clnt_perror (dbp->clnt, "__do_niscall2: clnt_call"); @@ -336,25 +327,56 @@ __do_niscall2 (const nis_server *server, u_int server_len, u_long prog, case NIS_IBREMOVE: case NIS_IBFIRST: case NIS_IBNEXT: - if ((((nis_result *)xres)->status != NIS_SUCCESS) && - (((nis_result *)xres)->status != NIS_S_SUCCESS)) - if (__bind_next (dbp) == NIS_SUCCESS) + if ((((nis_result *)xres)->status == NIS_NOTFOUND) || + (((nis_result *)xres)->status == NIS_NOSUCHNAME) || + (((nis_result *)xres)->status == NIS_NOT_ME)) + { + if (__bind_next (dbp) == NIS_SUCCESS) + while (__bind_connect (dbp) != NIS_SUCCESS) + { + if (__bind_next (dbp) != NIS_SUCCESS) + { + __bind_destroy (dbp); + return NIS_SUCCESS; + } + } goto again; + } case NIS_FINDDIRECTORY: - if (((fd_result *)xres)->status != NIS_SUCCESS) - if (__bind_next (dbp) == NIS_SUCCESS) + if ((((fd_result *)xres)->status == NIS_NOTFOUND) || + (((fd_result *)xres)->status == NIS_NOSUCHNAME) || + (((fd_result *)xres)->status == NIS_NOT_ME)) + { + if (__bind_next (dbp) == NIS_SUCCESS) + while (__bind_connect (dbp) != NIS_SUCCESS) + { + if (__bind_next (dbp) != NIS_SUCCESS) + { + __bind_destroy (dbp); + return NIS_SUCCESS; + } + } goto again; - break; -#if 0 - case NIS_STATUS: /* nis_taglist */ - case NIS_SERVSTATE: + } break; case NIS_DUMPLOG: /* log_result */ case NIS_DUMP: + if ((((log_result *)xres)->lr_status == NIS_NOTFOUND) || + (((log_result *)xres)->lr_status == NIS_NOSUCHNAME) || + (((log_result *)xres)->lr_status == NIS_NOT_ME)) + { + if (__bind_next (dbp) == NIS_SUCCESS) + while (__bind_connect (dbp) != NIS_SUCCESS) + { + if (__bind_next (dbp) != NIS_SUCCESS) + { + __bind_destroy (dbp); + return NIS_SUCCESS; + } + } + goto again; + } break; - case NIS_CHECKPOINT: /* cp_result */ - break; -#endif default: break; } @@ -363,12 +385,13 @@ __do_niscall2 (const nis_server *server, u_int server_len, u_long prog, } } while ((flags & HARD_LOOKUP) && retcode == NIS_RPCERROR); - - return retcode; + + return retcode; } static directory_obj * -rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) +rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags, + nis_error *status) { fd_result *fd_res; XDR xdrs; @@ -399,6 +422,7 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) switch (nis_dir_cmp (domain, dir->do_name)) { case SAME_NAME: + *status = NIS_SUCCESS; return dir; case NOT_SEQUENTIAL: /* NOT_SEQUENTIAL means, go one up and try it there ! */ @@ -413,6 +437,7 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) domain ! (Now I understand why a root server must be a replica of the parent domain) */ fd_res = __nis_finddirectory (dir, ndomain); + *status = fd_res->status; if (fd_res->status != NIS_SUCCESS) { nis_free_directory (dir); @@ -431,7 +456,7 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) /* We have found a NIS+ server serving ndomain, now let us search for "name" */ nis_free_directory (dir); - return rec_dirsearch (name, obj, flags); + return rec_dirsearch (name, obj, flags, status); } else { @@ -447,7 +472,7 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) char leaf [strlen (name) + 3]; char ndomain [strlen (name) + 3]; char *cp; - + do { if (strlen (domain) == 0) @@ -463,8 +488,9 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) cp = strchr (leaf, '\0'); *cp++ = '.'; strcpy (cp, domain); - + fd_res = __nis_finddirectory (dir, leaf); + *status = fd_res->status; if (fd_res->status != NIS_SUCCESS) { nis_free_directory (dir); @@ -483,15 +509,17 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, u_long flags) /* We have found a NIS+ server serving ndomain, now let us search for "name" */ nis_free_directory (dir); - return rec_dirsearch (name, obj, flags); + return rec_dirsearch (name, obj, flags, status); } } break; case BAD_NAME: nis_free_directory (dir); + *status = NIS_BADNAME; return NULL; } nis_free_directory (dir); + *status = NIS_FAIL; return NULL; } @@ -509,19 +537,20 @@ __do_niscall (const_nis_name name, u_long prog, xdrproc_t xargs, if ((flags & NO_CACHE) != NO_CACHE) dir = __cache_search (name); - + if (dir == NULL) { + nis_error status; dir = readColdStartFile (); if (dir == NULL) /* No /var/nis/NIS_COLD_START->no NIS+ installed */ return NIS_UNAVAIL; - - dir = rec_dirsearch (name, dir, flags); + + dir = rec_dirsearch (name, dir, flags, &status); if (dir == NULL) - return NIS_NOTFOUND; + return status; } - if (flags & MASTER_ONLY) + if (flags & MASTER_ONLY) { server = dir->do_servers.do_servers_val; server_len = 1; @@ -531,11 +560,11 @@ __do_niscall (const_nis_name name, u_long prog, xdrproc_t xargs, server = dir->do_servers.do_servers_val; server_len = dir->do_servers.do_servers_len; } - - + + retcode = __do_niscall2 (server, server_len, prog, xargs, req, xres, resp, flags); - + nis_free_directory (dir); return retcode; |