put the ecoff specific code from osf1_exec.c to osf1_exec_ecoff.c
This commit is contained in:
jdolecek
parent
48698d8229
commit
cc5b7ecb22
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@ -1,4 +1,4 @@
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# $NetBSD: files.osf1,v 1.16 1999/05/04 04:59:21 cgd Exp $
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# $NetBSD: files.osf1,v 1.17 2000/12/08 21:39:31 jdolecek Exp $
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#
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# Config file description for machine-independent OSF/1 compat code.
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# Included by ports that need it.
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@ -20,6 +20,7 @@ file compat/osf1/osf1_cvt_signal.c compat_osf1
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# functionality emulation files
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file compat/osf1/osf1_descrip.c compat_osf1
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file compat/osf1/osf1_exec.c compat_osf1
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file compat/osf1/osf1_exec_ecoff.c compat_osf1 & exec_ecoff
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file compat/osf1/osf1_file.c compat_osf1
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file compat/osf1/osf1_generic.c compat_osf1
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file compat/osf1/osf1_ioctl.c compat_osf1
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@ -1,4 +1,4 @@
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/* $NetBSD: osf1_exec.c,v 1.16 2000/12/01 19:20:22 jdolecek Exp $ */
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/* $NetBSD: osf1_exec.c,v 1.17 2000/12/08 21:39:30 jdolecek Exp $ */
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/*
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* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
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@ -32,33 +32,12 @@
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/malloc.h>
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#include <sys/namei.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/exec.h>
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#include <sys/exec_ecoff.h>
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#include <sys/signalvar.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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#include <compat/osf1/osf1.h>
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#include <compat/osf1/osf1_syscall.h>
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#include <compat/common/compat_util.h>
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#include <compat/osf1/osf1_cvt.h>
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#include <compat/osf1/osf1_exec.h>
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struct osf1_exec_emul_arg {
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int flags;
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#define OSF1_EXEC_EMUL_FLAGS_HAVE_LOADER 0x01
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char exec_name[MAXPATHLEN+1];
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char loader_name[MAXPATHLEN+1];
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};
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static int osf1_exec_ecoff_dynamic(struct proc *p, struct exec_package *epp);
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extern struct sysent osf1_sysent[];
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extern const char * const osf1_syscallnames[];
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@ -80,259 +59,3 @@ const struct emul emul_osf1 = {
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NULL,
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EMUL_GETPID_PASS_PPID|EMUL_GETID_PASS_EID,
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};
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int
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osf1_exec_ecoff_probe(struct proc *p, struct exec_package *epp)
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{
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struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr;
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struct osf1_exec_emul_arg *emul_arg;
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int error;
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/* check if the binary is osf1 ecoff */
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if (execp->f.f_magic != ECOFF_MAGIC_ALPHA)
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return ENOEXEC;
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/* set up the exec package emul arg as appropriate */
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emul_arg = malloc(sizeof *emul_arg, M_TEMP, M_WAITOK);
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epp->ep_emul_arg = emul_arg;
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emul_arg->flags = 0;
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if (epp->ep_ndp->ni_segflg == UIO_SYSSPACE)
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error = copystr(epp->ep_ndp->ni_dirp, emul_arg->exec_name,
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MAXPATHLEN + 1, NULL);
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else
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error = copyinstr(epp->ep_ndp->ni_dirp, emul_arg->exec_name,
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MAXPATHLEN + 1, NULL);
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#ifdef DIAGNOSTIC
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if (error != 0)
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panic("osf1_exec_ecoff_probe: copyinstr failed");
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#endif
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/* do any special object file handling */
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switch (execp->f.f_flags & ECOFF_FLAG_OBJECT_TYPE_MASK) {
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case ECOFF_OBJECT_TYPE_SHARABLE:
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/* can't exec a shared library! */
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#if 0
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uprintf("can't execute OSF/1 shared libraries\n");
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#endif
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error = ENOEXEC;
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break;
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case ECOFF_OBJECT_TYPE_CALL_SHARED:
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error = osf1_exec_ecoff_dynamic(p, epp);
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break;
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default:
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/* just let the normal ECOFF handlers deal with it. */
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error = 0;
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break;
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}
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if (error) {
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free(epp->ep_emul_arg, M_TEMP);
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epp->ep_emul_arg = NULL;
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kill_vmcmds(&epp->ep_vmcmds); /* if any */
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}
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return (error);
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}
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/*
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* copy arguments onto the stack in the normal way, then copy out
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* any ELF-like AUX entries used by the dynamic loading scheme.
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*/
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void *
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osf1_copyargs(pack, arginfo, stack, argp)
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struct exec_package *pack;
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struct ps_strings *arginfo;
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void *stack;
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void *argp;
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{
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struct proc *p = curproc; /* XXX !!! */
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struct osf1_exec_emul_arg *emul_arg = pack->ep_emul_arg;
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struct osf1_auxv ai[OSF1_MAX_AUX_ENTRIES], *a;
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char *prognameloc, *loadernameloc;
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size_t len;
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stack = copyargs(pack, arginfo, stack, argp);
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if (!stack)
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goto bad;
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a = ai;
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memset(ai, 0, sizeof ai);
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prognameloc = (char *)stack + sizeof ai;
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if (copyoutstr(emul_arg->exec_name, prognameloc, MAXPATHLEN + 1, NULL))
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goto bad;
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a->a_type = OSF1_AT_EXEC_FILENAME;
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a->a_un.a_ptr = prognameloc;
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a++;
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/*
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* if there's a loader, push additional auxv entries on the stack.
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*/
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if (emul_arg->flags & OSF1_EXEC_EMUL_FLAGS_HAVE_LOADER) {
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loadernameloc = prognameloc + MAXPATHLEN + 1;
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if (copyoutstr(emul_arg->loader_name, loadernameloc,
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MAXPATHLEN + 1, NULL))
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goto bad;
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a->a_type = OSF1_AT_EXEC_LOADER_FILENAME;
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a->a_un.a_ptr = loadernameloc;
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a++;
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a->a_type = OSF1_AT_EXEC_LOADER_FLAGS;
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a->a_un.a_val = 0;
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if (pack->ep_vap->va_mode & S_ISUID)
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a->a_un.a_val |= OSF1_LDR_EXEC_SETUID_F;
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if (pack->ep_vap->va_mode & S_ISGID)
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a->a_un.a_val |= OSF1_LDR_EXEC_SETGID_F;
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if (p->p_flag & P_TRACED)
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a->a_un.a_val |= OSF1_LDR_EXEC_PTRACE_F;
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a++;
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}
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a->a_type = OSF1_AT_NULL;
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a->a_un.a_val = 0;
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a++;
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len = (a - ai) * sizeof(struct osf1_auxv);
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if (copyout(ai, stack, len))
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goto bad;
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stack = (caddr_t)stack + len;
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out:
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free(pack->ep_emul_arg, M_TEMP);
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pack->ep_emul_arg = NULL;
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return stack;
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bad:
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stack = NULL;
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goto out;
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}
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static int
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osf1_exec_ecoff_dynamic(struct proc *p, struct exec_package *epp)
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{
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struct osf1_exec_emul_arg *emul_arg = epp->ep_emul_arg;
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struct ecoff_exechdr ldr_exechdr;
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struct nameidata nd;
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struct vnode *ldr_vp;
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const char *pathbuf;
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size_t resid;
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int error;
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/*
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* locate the loader
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*/
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error = emul_find(p, NULL, epp->ep_esch->es_emul->e_path,
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OSF1_LDR_EXEC_DEFAULT_LOADER, &pathbuf, 0);
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/* includes /emul/osf1 if appropriate */
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strncpy(emul_arg->loader_name, pathbuf, MAXPATHLEN + 1);
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emul_arg->flags |= OSF1_EXEC_EMUL_FLAGS_HAVE_LOADER;
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if (!error)
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free((char *)pathbuf, M_TEMP);
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#if 0
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uprintf("loader is %s\n", emul_arg->loader_name);
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#endif
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/*
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* open the loader, see if it's an ECOFF executable,
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* make sure the object type is amenable, then arrange to
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* load it up.
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*/
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NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE,
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emul_arg->loader_name, p);
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if ((error = namei(&nd)) != 0)
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goto bad_no_vp;
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ldr_vp = nd.ni_vp;
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/*
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* Basic access checks. Reject if:
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* not a regular file
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* exec not allowed on binary
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* exec not allowed on mount point
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*/
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if (ldr_vp->v_type != VREG) {
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error = EACCES;
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goto badunlock;
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}
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if ((error = VOP_ACCESS(ldr_vp, VEXEC, p->p_ucred, p)) != 0)
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goto badunlock;
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if (ldr_vp->v_mount->mnt_flag & MNT_NOEXEC) {
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error = EACCES;
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goto badunlock;
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}
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/*
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* If loader's mount point disallows set-id execution,
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* disable set-id.
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*/
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if (ldr_vp->v_mount->mnt_flag & MNT_NOSUID)
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epp->ep_vap->va_mode &= ~(S_ISUID | S_ISGID);
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VOP_UNLOCK(ldr_vp, 0);
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/*
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* read the header, and make sure we got all of it.
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*/
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if ((error = vn_rdwr(UIO_READ, ldr_vp, (caddr_t)&ldr_exechdr,
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sizeof ldr_exechdr, 0, UIO_SYSSPACE, 0, p->p_ucred,
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&resid, p)) != 0)
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goto bad;
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if (resid != 0) {
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error = ENOEXEC;
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goto bad;
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}
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/*
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* Check the magic. We expect it to be the native Alpha ECOFF
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* (Digital UNIX) magic number. Also make sure it's not a shared
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* lib or dynamically linked executable.
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*/
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if (ldr_exechdr.f.f_magic != ECOFF_MAGIC_ALPHA) {
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error = ENOEXEC;
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goto bad;
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}
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switch (ldr_exechdr.f.f_flags & ECOFF_FLAG_OBJECT_TYPE_MASK) {
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case ECOFF_OBJECT_TYPE_SHARABLE:
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case ECOFF_OBJECT_TYPE_CALL_SHARED:
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/* can't exec shared lib or dynamically linked executable. */
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error = ENOEXEC;
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goto bad;
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}
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switch (ldr_exechdr.a.magic) {
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case ECOFF_OMAGIC:
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error = exec_ecoff_prep_omagic(p, epp, &ldr_exechdr, ldr_vp);
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break;
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case ECOFF_NMAGIC:
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error = exec_ecoff_prep_nmagic(p, epp, &ldr_exechdr, ldr_vp);
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break;
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case ECOFF_ZMAGIC:
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error = exec_ecoff_prep_zmagic(p, epp, &ldr_exechdr, ldr_vp);
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break;
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default:
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error = ENOEXEC;
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}
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if (error)
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goto bad;
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/* finally, set up the stack. */
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error = exec_ecoff_setup_stack(p, epp);
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if (error)
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goto bad;
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vrele(ldr_vp);
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return (0);
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badunlock:
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VOP_UNLOCK(ldr_vp, 0);
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bad:
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vrele(ldr_vp);
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bad_no_vp:
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return (error);
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}
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@ -0,0 +1,311 @@
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/* $NetBSD: osf1_exec_ecoff.c,v 1.1 2000/12/08 21:39:31 jdolecek Exp $ */
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/*
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* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/malloc.h>
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#include <sys/namei.h>
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#include <sys/vnode.h>
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#include <sys/exec.h>
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#include <sys/exec_ecoff.h>
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#include <compat/osf1/osf1.h>
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#include <compat/common/compat_util.h>
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#include <compat/osf1/osf1_cvt.h>
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#include <compat/osf1/osf1_exec.h>
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struct osf1_exec_emul_arg {
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int flags;
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#define OSF1_EXEC_EMUL_FLAGS_HAVE_LOADER 0x01
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char exec_name[MAXPATHLEN+1];
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char loader_name[MAXPATHLEN+1];
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};
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static int osf1_exec_ecoff_dynamic(struct proc *p, struct exec_package *epp);
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int
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osf1_exec_ecoff_probe(struct proc *p, struct exec_package *epp)
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{
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struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr;
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struct osf1_exec_emul_arg *emul_arg;
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int error;
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/* check if the binary is osf1 ecoff */
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if (execp->f.f_magic != ECOFF_MAGIC_ALPHA)
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return ENOEXEC;
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|
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/* set up the exec package emul arg as appropriate */
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emul_arg = malloc(sizeof *emul_arg, M_TEMP, M_WAITOK);
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epp->ep_emul_arg = emul_arg;
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emul_arg->flags = 0;
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if (epp->ep_ndp->ni_segflg == UIO_SYSSPACE)
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error = copystr(epp->ep_ndp->ni_dirp, emul_arg->exec_name,
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MAXPATHLEN + 1, NULL);
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else
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error = copyinstr(epp->ep_ndp->ni_dirp, emul_arg->exec_name,
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MAXPATHLEN + 1, NULL);
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#ifdef DIAGNOSTIC
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if (error != 0)
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panic("osf1_exec_ecoff_probe: copyinstr failed");
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#endif
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/* do any special object file handling */
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switch (execp->f.f_flags & ECOFF_FLAG_OBJECT_TYPE_MASK) {
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case ECOFF_OBJECT_TYPE_SHARABLE:
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/* can't exec a shared library! */
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#if 0
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uprintf("can't execute OSF/1 shared libraries\n");
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#endif
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error = ENOEXEC;
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break;
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case ECOFF_OBJECT_TYPE_CALL_SHARED:
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error = osf1_exec_ecoff_dynamic(p, epp);
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break;
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|
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default:
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/* just let the normal ECOFF handlers deal with it. */
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error = 0;
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break;
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}
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|
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if (error) {
|
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free(epp->ep_emul_arg, M_TEMP);
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epp->ep_emul_arg = NULL;
|
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kill_vmcmds(&epp->ep_vmcmds); /* if any */
|
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}
|
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|
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return (error);
|
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}
|
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|
||||
/*
|
||||
* copy arguments onto the stack in the normal way, then copy out
|
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* any ELF-like AUX entries used by the dynamic loading scheme.
|
||||
*/
|
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void *
|
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osf1_copyargs(pack, arginfo, stack, argp)
|
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struct exec_package *pack;
|
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struct ps_strings *arginfo;
|
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void *stack;
|
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void *argp;
|
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{
|
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struct proc *p = curproc; /* XXX !!! */
|
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struct osf1_exec_emul_arg *emul_arg = pack->ep_emul_arg;
|
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struct osf1_auxv ai[OSF1_MAX_AUX_ENTRIES], *a;
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char *prognameloc, *loadernameloc;
|
||||
size_t len;
|
||||
|
||||
stack = copyargs(pack, arginfo, stack, argp);
|
||||
if (!stack)
|
||||
goto bad;
|
||||
|
||||
a = ai;
|
||||
memset(ai, 0, sizeof ai);
|
||||
|
||||
prognameloc = (char *)stack + sizeof ai;
|
||||
if (copyoutstr(emul_arg->exec_name, prognameloc, MAXPATHLEN + 1, NULL))
|
||||
goto bad;
|
||||
a->a_type = OSF1_AT_EXEC_FILENAME;
|
||||
a->a_un.a_ptr = prognameloc;
|
||||
a++;
|
||||
|
||||
/*
|
||||
* if there's a loader, push additional auxv entries on the stack.
|
||||
*/
|
||||
if (emul_arg->flags & OSF1_EXEC_EMUL_FLAGS_HAVE_LOADER) {
|
||||
|
||||
loadernameloc = prognameloc + MAXPATHLEN + 1;
|
||||
if (copyoutstr(emul_arg->loader_name, loadernameloc,
|
||||
MAXPATHLEN + 1, NULL))
|
||||
goto bad;
|
||||
a->a_type = OSF1_AT_EXEC_LOADER_FILENAME;
|
||||
a->a_un.a_ptr = loadernameloc;
|
||||
a++;
|
||||
|
||||
a->a_type = OSF1_AT_EXEC_LOADER_FLAGS;
|
||||
a->a_un.a_val = 0;
|
||||
if (pack->ep_vap->va_mode & S_ISUID)
|
||||
a->a_un.a_val |= OSF1_LDR_EXEC_SETUID_F;
|
||||
if (pack->ep_vap->va_mode & S_ISGID)
|
||||
a->a_un.a_val |= OSF1_LDR_EXEC_SETGID_F;
|
||||
if (p->p_flag & P_TRACED)
|
||||
a->a_un.a_val |= OSF1_LDR_EXEC_PTRACE_F;
|
||||
a++;
|
||||
}
|
||||
|
||||
a->a_type = OSF1_AT_NULL;
|
||||
a->a_un.a_val = 0;
|
||||
a++;
|
||||
|
||||
len = (a - ai) * sizeof(struct osf1_auxv);
|
||||
if (copyout(ai, stack, len))
|
||||
goto bad;
|
||||
stack = (caddr_t)stack + len;
|
||||
|
||||
out:
|
||||
free(pack->ep_emul_arg, M_TEMP);
|
||||
pack->ep_emul_arg = NULL;
|
||||
return stack;
|
||||
|
||||
bad:
|
||||
stack = NULL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
static int
|
||||
osf1_exec_ecoff_dynamic(struct proc *p, struct exec_package *epp)
|
||||
{
|
||||
struct osf1_exec_emul_arg *emul_arg = epp->ep_emul_arg;
|
||||
struct ecoff_exechdr ldr_exechdr;
|
||||
struct nameidata nd;
|
||||
struct vnode *ldr_vp;
|
||||
const char *pathbuf;
|
||||
size_t resid;
|
||||
int error;
|
||||
|
||||
/*
|
||||
* locate the loader
|
||||
*/
|
||||
error = emul_find(p, NULL, epp->ep_esch->es_emul->e_path,
|
||||
OSF1_LDR_EXEC_DEFAULT_LOADER, &pathbuf, 0);
|
||||
/* includes /emul/osf1 if appropriate */
|
||||
strncpy(emul_arg->loader_name, pathbuf, MAXPATHLEN + 1);
|
||||
emul_arg->flags |= OSF1_EXEC_EMUL_FLAGS_HAVE_LOADER;
|
||||
if (!error)
|
||||
free((char *)pathbuf, M_TEMP);
|
||||
|
||||
#if 0
|
||||
uprintf("loader is %s\n", emul_arg->loader_name);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* open the loader, see if it's an ECOFF executable,
|
||||
* make sure the object type is amenable, then arrange to
|
||||
* load it up.
|
||||
*/
|
||||
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE,
|
||||
emul_arg->loader_name, p);
|
||||
if ((error = namei(&nd)) != 0)
|
||||
goto bad_no_vp;
|
||||
ldr_vp = nd.ni_vp;
|
||||
|
||||
/*
|
||||
* Basic access checks. Reject if:
|
||||
* not a regular file
|
||||
* exec not allowed on binary
|
||||
* exec not allowed on mount point
|
||||
*/
|
||||
if (ldr_vp->v_type != VREG) {
|
||||
error = EACCES;
|
||||
goto badunlock;
|
||||
}
|
||||
|
||||
if ((error = VOP_ACCESS(ldr_vp, VEXEC, p->p_ucred, p)) != 0)
|
||||
goto badunlock;
|
||||
|
||||
if (ldr_vp->v_mount->mnt_flag & MNT_NOEXEC) {
|
||||
error = EACCES;
|
||||
goto badunlock;
|
||||
}
|
||||
|
||||
/*
|
||||
* If loader's mount point disallows set-id execution,
|
||||
* disable set-id.
|
||||
*/
|
||||
if (ldr_vp->v_mount->mnt_flag & MNT_NOSUID)
|
||||
epp->ep_vap->va_mode &= ~(S_ISUID | S_ISGID);
|
||||
|
||||
VOP_UNLOCK(ldr_vp, 0);
|
||||
|
||||
/*
|
||||
* read the header, and make sure we got all of it.
|
||||
*/
|
||||
if ((error = vn_rdwr(UIO_READ, ldr_vp, (caddr_t)&ldr_exechdr,
|
||||
sizeof ldr_exechdr, 0, UIO_SYSSPACE, 0, p->p_ucred,
|
||||
&resid, p)) != 0)
|
||||
goto bad;
|
||||
if (resid != 0) {
|
||||
error = ENOEXEC;
|
||||
goto bad;
|
||||
}
|
||||
|
||||
/*
|
||||
* Check the magic. We expect it to be the native Alpha ECOFF
|
||||
* (Digital UNIX) magic number. Also make sure it's not a shared
|
||||
* lib or dynamically linked executable.
|
||||
*/
|
||||
if (ldr_exechdr.f.f_magic != ECOFF_MAGIC_ALPHA) {
|
||||
error = ENOEXEC;
|
||||
goto bad;
|
||||
}
|
||||
switch (ldr_exechdr.f.f_flags & ECOFF_FLAG_OBJECT_TYPE_MASK) {
|
||||
case ECOFF_OBJECT_TYPE_SHARABLE:
|
||||
case ECOFF_OBJECT_TYPE_CALL_SHARED:
|
||||
/* can't exec shared lib or dynamically linked executable. */
|
||||
error = ENOEXEC;
|
||||
goto bad;
|
||||
}
|
||||
|
||||
switch (ldr_exechdr.a.magic) {
|
||||
case ECOFF_OMAGIC:
|
||||
error = exec_ecoff_prep_omagic(p, epp, &ldr_exechdr, ldr_vp);
|
||||
break;
|
||||
case ECOFF_NMAGIC:
|
||||
error = exec_ecoff_prep_nmagic(p, epp, &ldr_exechdr, ldr_vp);
|
||||
break;
|
||||
case ECOFF_ZMAGIC:
|
||||
error = exec_ecoff_prep_zmagic(p, epp, &ldr_exechdr, ldr_vp);
|
||||
break;
|
||||
default:
|
||||
error = ENOEXEC;
|
||||
}
|
||||
if (error)
|
||||
goto bad;
|
||||
|
||||
/* finally, set up the stack. */
|
||||
error = exec_ecoff_setup_stack(p, epp);
|
||||
if (error)
|
||||
goto bad;
|
||||
|
||||
vrele(ldr_vp);
|
||||
return (0);
|
||||
|
||||
badunlock:
|
||||
VOP_UNLOCK(ldr_vp, 0);
|
||||
bad:
|
||||
vrele(ldr_vp);
|
||||
bad_no_vp:
|
||||
return (error);
|
||||
}
|
||||
Loading…
Reference in New Issue