From a1a8064169aeda79e3266a2db9cce25e361a86dc Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Mon, 20 Mar 2017 18:10:36 +0100 Subject: remove RPC implementation The included RPC implementation is ipv4 only. Other C library projects have either deprecated the internal RPC implementation (GNU C Library) or never implemented such functionality (musl C Library). The latest rpcbind release (0.2.4) checks for libtirpc and does not allow to be build with uClibc-ng RPC without patching. The common use case for RPC nowadays is to use rpcbind together with nfs-utils to provide NFS server or client support to a system. The included RPC implementation does create issues with duplicate symbol failures when statically compiling with RPC enabled. --- libc/inet/rpc/auth_unix.c | 323 ---------------------------------------------- 1 file changed, 323 deletions(-) delete mode 100644 libc/inet/rpc/auth_unix.c (limited to 'libc/inet/rpc/auth_unix.c') diff --git a/libc/inet/rpc/auth_unix.c b/libc/inet/rpc/auth_unix.c deleted file mode 100644 index 86c5ce956..000000000 --- a/libc/inet/rpc/auth_unix.c +++ /dev/null @@ -1,323 +0,0 @@ -/* - * Sun RPC is a product of Sun Microsystems, Inc. and is provided for - * unrestricted use provided that this legend is included on all tape - * media and as a part of the software program in whole or part. Users - * may copy or modify Sun RPC without charge, but are not authorized - * to license or distribute it to anyone else except as part of a product or - * program developed by the user. - * - * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE - * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR - * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. - * - * Sun RPC is provided with no support and without any obligation on the - * part of Sun Microsystems, Inc. to assist in its use, correction, - * modification or enhancement. - * - * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE - * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC - * OR ANY PART THEREOF. - * - * In no event will Sun Microsystems, Inc. be liable for any lost revenue - * or profits or other special, indirect and consequential damages, even if - * Sun has been advised of the possibility of such damages. - * - * Sun Microsystems, Inc. - * 2550 Garcia Avenue - * Mountain View, California 94043 - */ -/* - * Copyright (C) 1984, Sun Microsystems, Inc. - */ -/* - * auth_unix.c, Implements UNIX style authentication parameters. - * - * The system is very weak. The client uses no encryption for it's - * credentials and only sends null verifiers. The server sends backs - * null verifiers or optionally a verifier that suggests a new short hand - * for the credentials. - */ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -/* - * Unix authenticator operations vector - */ -static void authunix_nextverf (AUTH *); -static bool_t authunix_marshal (AUTH *, XDR *); -static bool_t authunix_validate (AUTH *, struct opaque_auth *); -static bool_t authunix_refresh (AUTH *); -static void authunix_destroy (AUTH *); - -static const struct auth_ops auth_unix_ops = { - authunix_nextverf, - authunix_marshal, - authunix_validate, - authunix_refresh, - authunix_destroy -}; - -/* - * This struct is pointed to by the ah_private field of an auth_handle. - */ -struct audata { - struct opaque_auth au_origcred; /* original credentials */ - struct opaque_auth au_shcred; /* short hand cred */ - u_long au_shfaults; /* short hand cache faults */ - char au_marshed[MAX_AUTH_BYTES]; - u_int au_mpos; /* xdr pos at end of marshed */ -}; -#define AUTH_PRIVATE(auth) ((struct audata *)auth->ah_private) - -static bool_t marshal_new_auth (AUTH *) internal_function; - - -/* - * Create a unix style authenticator. - * Returns an auth handle with the given stuff in it. - */ -AUTH * -authunix_create (char *machname, uid_t uid, gid_t gid, int len, - gid_t *aup_gids) -{ - struct authunix_parms aup; - char mymem[MAX_AUTH_BYTES]; - struct timeval now; - XDR xdrs; - AUTH *auth; - struct audata *au; - - /* - * Allocate and set up auth handle - */ - auth = (AUTH *) mem_alloc (sizeof (*auth)); - au = (struct audata *) mem_alloc (sizeof (*au)); - if (auth == NULL || au == NULL) - { -no_memory: - (void) fputs ("authunix_create: out of memory\n", stderr); - mem_free (auth, sizeof (*auth)); - mem_free (au, sizeof (*au)); - return NULL; - } - auth->ah_ops = &auth_unix_ops; - auth->ah_private = (caddr_t) au; - auth->ah_verf = au->au_shcred = _null_auth; - au->au_shfaults = 0; - - /* - * fill in param struct from the given params - */ - (void) gettimeofday (&now, (struct timezone *) 0); - aup.aup_time = now.tv_sec; - aup.aup_machname = machname; - aup.aup_uid = uid; - aup.aup_gid = gid; - aup.aup_len = (u_int) len; - aup.aup_gids = aup_gids; - - /* - * Serialize the parameters into origcred - */ - xdrmem_create (&xdrs, mymem, MAX_AUTH_BYTES, XDR_ENCODE); - if (!xdr_authunix_parms (&xdrs, &aup)) - abort (); - au->au_origcred.oa_length = len = XDR_GETPOS (&xdrs); - au->au_origcred.oa_flavor = AUTH_UNIX; - au->au_origcred.oa_base = mem_alloc ((u_int) len); - if (au->au_origcred.oa_base == NULL) - goto no_memory; - memcpy(au->au_origcred.oa_base, mymem, (u_int) len); - - /* - * set auth handle to reflect new cred. - */ - auth->ah_cred = au->au_origcred; - marshal_new_auth (auth); - return auth; -} -libc_hidden_def(authunix_create) - -/* - * Returns an auth handle with parameters determined by doing lots of - * syscalls. - */ -AUTH * -authunix_create_default (void) -{ - int len; - char machname[MAX_MACHINE_NAME + 1]; - uid_t uid; - gid_t gid; - int max_nr_groups = sysconf (_SC_NGROUPS_MAX); - gid_t *gids = NULL; - AUTH *ret_auth; - - if (max_nr_groups) { - gids = (gid_t*)malloc(sizeof(*gids) * max_nr_groups); - if (gids == NULL) - abort (); - } - - if (gethostname (machname, MAX_MACHINE_NAME) == -1) - abort (); - machname[MAX_MACHINE_NAME] = 0; - uid = geteuid (); - gid = getegid (); - - if ((len = getgroups (max_nr_groups, gids)) < 0) - abort (); - /* This braindamaged Sun code forces us here to truncate the - list of groups to NGRPS members since the code in - authuxprot.c transforms a fixed array. Grrr. */ - ret_auth = authunix_create (machname, uid, gid, MIN (NGRPS, len), gids); - free (gids); - return ret_auth; -} -libc_hidden_def(authunix_create_default) - -/* - * authunix operations - */ - -static void -authunix_nextverf (AUTH *auth attribute_unused) -{ - /* no action necessary */ -} - -static bool_t -authunix_marshal (AUTH *auth, XDR *xdrs) -{ - struct audata *au = AUTH_PRIVATE (auth); - - return XDR_PUTBYTES (xdrs, au->au_marshed, au->au_mpos); -} - -static bool_t -authunix_validate (AUTH *auth, struct opaque_auth *verf) -{ - struct audata *au; - XDR xdrs; - - if (verf->oa_flavor == AUTH_SHORT) - { - au = AUTH_PRIVATE (auth); - xdrmem_create (&xdrs, verf->oa_base, verf->oa_length, - XDR_DECODE); - - if (au->au_shcred.oa_base != NULL) - { - mem_free (au->au_shcred.oa_base, - au->au_shcred.oa_length); - au->au_shcred.oa_base = NULL; - } - if (xdr_opaque_auth (&xdrs, &au->au_shcred)) - { - auth->ah_cred = au->au_shcred; - } - else - { - xdrs.x_op = XDR_FREE; - (void) xdr_opaque_auth (&xdrs, &au->au_shcred); - au->au_shcred.oa_base = NULL; - auth->ah_cred = au->au_origcred; - } - marshal_new_auth (auth); - } - return TRUE; -} - -static bool_t -authunix_refresh (AUTH *auth) -{ - struct audata *au = AUTH_PRIVATE (auth); - struct authunix_parms aup; - struct timeval now; - XDR xdrs; - int stat; - - if (auth->ah_cred.oa_base == au->au_origcred.oa_base) - { - /* there is no hope. Punt */ - return FALSE; - } - au->au_shfaults++; - - /* first deserialize the creds back into a struct authunix_parms */ - aup.aup_machname = NULL; - aup.aup_gids = (gid_t *) NULL; - xdrmem_create (&xdrs, au->au_origcred.oa_base, - au->au_origcred.oa_length, XDR_DECODE); - stat = xdr_authunix_parms (&xdrs, &aup); - if (!stat) - goto done; - - /* update the time and serialize in place */ - (void) gettimeofday (&now, (struct timezone *) 0); - aup.aup_time = now.tv_sec; - xdrs.x_op = XDR_ENCODE; - XDR_SETPOS (&xdrs, 0); - stat = xdr_authunix_parms (&xdrs, &aup); - if (!stat) - goto done; - auth->ah_cred = au->au_origcred; - marshal_new_auth (auth); -done: - /* free the struct authunix_parms created by deserializing */ - xdrs.x_op = XDR_FREE; - (void) xdr_authunix_parms (&xdrs, &aup); - XDR_DESTROY (&xdrs); - return stat; -} - -static void -authunix_destroy (AUTH *auth) -{ - struct audata *au = AUTH_PRIVATE (auth); - - mem_free (au->au_origcred.oa_base, au->au_origcred.oa_length); - - if (au->au_shcred.oa_base != NULL) - mem_free (au->au_shcred.oa_base, au->au_shcred.oa_length); - - mem_free (auth->ah_private, sizeof (struct audata)); - - if (auth->ah_verf.oa_base != NULL) - mem_free (auth->ah_verf.oa_base, auth->ah_verf.oa_length); - - mem_free ((caddr_t) auth, sizeof (*auth)); -} - -/* - * Marshals (pre-serializes) an auth struct. - * sets private data, au_marshed and au_mpos - */ -static bool_t -internal_function -marshal_new_auth (AUTH *auth) -{ - XDR xdr_stream; - XDR *xdrs = &xdr_stream; - struct audata *au = AUTH_PRIVATE (auth); - - xdrmem_create (xdrs, au->au_marshed, MAX_AUTH_BYTES, XDR_ENCODE); - if ((!xdr_opaque_auth (xdrs, &(auth->ah_cred))) || - (!xdr_opaque_auth (xdrs, &(auth->ah_verf)))) - perror ("auth_unix.c - Fatal marshalling problem"); - else - au->au_mpos = XDR_GETPOS (xdrs); - - XDR_DESTROY (xdrs); - - return TRUE; -} -- cgit v1.2.3