sn1_brand.c revision 628e3cbed6489fa1db545d8524a06cd6535af456
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * CDDL HEADER START
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * The contents of this file are subject to the terms of the
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * Common Development and Distribution License (the "License").
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * You may not use this file except in compliance with the License.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * See the License for the specific language governing permissions
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * and limitations under the License.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * When distributing Covered Code, include this CDDL HEADER in each
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * If applicable, add the following below this CDDL HEADER, with the
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9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * information: Portions Copyright [yyyy] [name of copyright owner]
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * CDDL HEADER END
fd9e7635fa85e33de5aff912b955d797589f6f87edp * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * Use is subject to license terms.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnint sn1_brandsys(int, int64_t *, uintptr_t, uintptr_t, uintptr_t,
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnint sn1_elfexec(vnode_t *, execa_t *, uarg_t *, intpdata_t *, int,
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/* sn1 brand */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#else /* sparc */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#else /* ! __amd64 */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#endif /* __amd64 */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#endif /* _sparc */
fd9e7635fa85e33de5aff912b955d797589f6f87edp * We should only be called from exec(), when we know the process
fd9e7635fa85e33de5aff912b955d797589f6f87edp * is single-threaded.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz p->p_brand_data = kmem_zalloc(sizeof (sn1_proc_data_t), KM_SLEEP);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/* ARGSUSED */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnsn1_getattr(zone_t *zone, int attr, void *buf, size_t *bufsize)
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/* ARGSUSED */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnsn1_setattr(zone_t *zone, int attr, void *buf, size_t bufsize)
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * Get the address of the user-space system call handler from the user
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * process and attach it to the proc structure.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*ARGSUSED*/
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnsn1_brandsys(int cmd, int64_t *rval, uintptr_t arg1, uintptr_t arg2,
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn uintptr_t arg3, uintptr_t arg4, uintptr_t arg5, uintptr_t arg6)
fd9e7635fa85e33de5aff912b955d797589f6f87edp * There is one operation that is suppored for non-branded
fd9e7635fa85e33de5aff912b955d797589f6f87edp * process. B_EXEC_BRAND. This brand operaion is redundant
fd9e7635fa85e33de5aff912b955d797589f6f87edp * since the kernel assumes a native process doing an exec
fd9e7635fa85e33de5aff912b955d797589f6f87edp * in a branded zone is going to run a branded processes.
fd9e7635fa85e33de5aff912b955d797589f6f87edp * hence we don't support this operation.
fd9e7635fa85e33de5aff912b955d797589f6f87edp /* For all other operations this must be a branded process. */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz (char *)arg1, (const char **)arg2, (const char **)arg3,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyin((void *)arg1, ®, sizeof (reg)) != 0)
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyin((void *)arg1, ®32, sizeof (reg32)) != 0)
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz reg.sbr_handler = (caddr_t)(uintptr_t)reg32.sbr_handler;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyout(&spd->spd_elf_data, (void *)arg1,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_phdr = spd->spd_elf_data.sed_phdr;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_phent = spd->spd_elf_data.sed_phent;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_phnum = spd->spd_elf_data.sed_phnum;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_entry = spd->spd_elf_data.sed_entry;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_base = spd->spd_elf_data.sed_base;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_ldentry = spd->spd_elf_data.sed_ldentry;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed32.sed_lddata = spd->spd_elf_data.sed_lddata;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyout(&sed32, (void *)arg1, sizeof (sed32)) != 0)
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn return (0);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Copy the per-process brand data from a parent proc to a child.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* Just duplicate all the proc data of the parent for the child */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz spd = kmem_alloc(sizeof (sn1_proc_data_t), KM_SLEEP);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz bcopy(parent->p_brand_data, spd, sizeof (sn1_proc_data_t));
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*ARGSUSED*/
fd9e7635fa85e33de5aff912b955d797589f6f87edp * We should only be called from proc_exit(), when we know that
fd9e7635fa85e33de5aff912b955d797589f6f87edp * process is single-threaded.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* upon exit, free our lwp brand data */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* upon exit, free our proc brand data */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz kmem_free(p->p_brand_data, sizeof (sn1_proc_data_t));
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_proc_data_t *spd = curproc->p_brand_data;
fd9e7635fa85e33de5aff912b955d797589f6f87edp * We should only be called from exec(), when we know the process
fd9e7635fa85e33de5aff912b955d797589f6f87edp * is single-threaded.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* Upon exec, reset our lwp brand data. */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Upon exec, reset all the proc brand data, except for the elf
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * data associated with the executable we are exec'ing.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*ARGSUSED*/
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(l->lwp_procp->p_brand_data != NULL);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn return (0);
319378d99bca1eacf64f0a464b0175bf66b422abeh/*ARGSUSED*/
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(p->lwp_procp->p_brand_data != NULL);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(c->lwp_procp->p_brand_data != NULL);
fd9e7635fa85e33de5aff912b955d797589f6f87edp /* Both LWPs have already had been initialized via sn1_initlwp() */
319378d99bca1eacf64f0a464b0175bf66b422abeh/*ARGSUSED*/
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(l->lwp_procp->p_brand_data != NULL);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*ARGSUSED*/
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(l->lwp_procp->p_brand_data != NULL);
fd9e7635fa85e33de5aff912b955d797589f6f87edp * We should never be called for the last thread in a process.
fd9e7635fa85e33de5aff912b955d797589f6f87edp * (That case is handled by sn1_proc_exit().) There for this lwp
fd9e7635fa85e33de5aff912b955d797589f6f87edp * must be exiting from a multi-threaded process.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*ARGSUSED*/
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*ARGSUSED*/
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz bcopy(src->e_ident, dst->e_ident, sizeof (src->e_ident));
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnsn1_elfexec(vnode_t *vp, execa_t *uap, uarg_t *args, intpdata_t *idatap,
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn int level, long *execsz, int setid, caddr_t exec_file, cred_t *cred,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz uintptr_t lddata; /* lddata of executable's linker */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz spd = (sn1_proc_data_t *)curproc->p_brand_data;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * We will exec the brand library and then map in the target
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * application and (optionally) the brand's default linker.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if ((err = lookupname(args->emulator, UIO_SYSSPACE, FOLLOW, NULLVPP,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz uprintf("%s: not found.", args->emulator);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz err = elfexec(nvp, uap, args, idatap, level + 1, execsz,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz err = elf32exec(nvp, uap, args, idatap, level + 1, execsz,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * The u_auxv vectors are set up by elfexec to point to the brand
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * emulation library and linker. Save these so they can be copied to
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * the specific brand aux vectors.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz for (i = 0; i < __KERN_NAUXV_IMPL; i++) {
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sed.sed_lddata = up->u_auxv[i].a_un.a_val;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* Make sure the emulator has an entry point */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz err = mapexec_brand(vp, args, &ehdr, &uphdr_vaddr, &voffset,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz exec_file, &interp, &env.ex_bssbase, &env.ex_brkbase,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz err = mapexec32_brand(vp, args, &ehdr32, &uphdr_vaddr32,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz &voffset, exec_file, &interp, &env.ex_bssbase,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Save off the important properties of the executable. The brand
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * library will ask us for this data later, when it is initializing
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * and getting ready to transfer control to the brand application.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * This is a shared object executable, so we need to
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * pick a reasonable place to put the heap. Just don't
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * use the first page.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * If the program needs an interpreter (most do), map it in and
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * store relevant information about it in the aux vector, where
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * the brand library can find it.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if ((err = lookupname(linker, UIO_SYSSPACE,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz &uphdr_vaddr, &voffset, exec_file, &interp,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz &uphdr_vaddr32, &voffset, exec_file, &interp,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Now that we know the base address of the brand's linker,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * place it in the aux vector.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sedp->sed_ldentry = voffset + ehdr.e_entry;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * This program has no interpreter. The brand library will
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * jump to the address in the AT_SUN_BRAND_LDENTRY aux vector,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * so in this case, put the entry point of the main executable
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * An executable with no interpreter, this must be a
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * statically linked executable, which means we loaded
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * it at the address specified in the elf header, in
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * which case the e_entry field of the elf header is an
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * absolute address.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * A shared object with no interpreter, we use the
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * calculated address from above.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Delay setting the brkbase until the first call to
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * brk(); see elfexec() for details.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * It's time to manipulate the process aux vectors. First
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * we need to update the AT_SUN_AUXFLAGS aux vector to set
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * the AF_SUN_NOPLM flag.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyin(args->auxp_auxflags, &auxflags_auxv,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(auxflags_auxv.a_type == AT_SUN_AUXFLAGS);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyout(&auxflags_auxv, args->auxp_auxflags,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyin(args->auxp_auxflags, &auxflags_auxv32,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(auxflags_auxv32.a_type == AT_SUN_AUXFLAGS);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz auxflags_auxv32.a_un.a_val |= AF_SUN_NOPLM;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyout(&auxflags_auxv32, args->auxp_auxflags,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* Second, copy out the brand specific aux vectors. */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(sn1_auxv[0].a_type == AT_SUN_BRAND_SN1_LDDATA);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sizeof (sn1_auxv)) != 0)
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz ASSERT(sn1_auxv32[0].a_type == AT_SUN_BRAND_SN1_LDDATA);
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_auxv32[0].a_un.a_val = (uint32_t)sed.sed_lddata;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz if (copyout(&sn1_auxv32, args->auxp_brand,
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sizeof (sn1_auxv32)) != 0)
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz#endif /* _LP64 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Third, the the /proc aux vectors set up by elfexec() point to brand
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * emulation library and it's linker. Copy these to the /proc brand
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * specific aux vector, and update the regular /proc aux vectors to
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * point to the executable (and it's linker). This will enable
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * debuggers to access the executable via the usual /proc or elf notes
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * aux vectors.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * The brand emulation library's linker will get it's aux vectors off
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * the stack, and then update the stack with the executable's aux
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * vectors before jumping to the executable's linker.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * Debugging the brand emulation library must be done from
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * the global zone, where the librtld_db module knows how to fetch the
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * brand specific aux vectors to access the brand emulation libraries
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz for (i = 0; i < __KERN_NAUXV_IMPL; i++) {
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sed.sed_lddata;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* Hide base for static binaries */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sedp->sed_base;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sedp->sed_entry;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sedp->sed_phdr;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sedp->sed_phent;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sedp->sed_phnum;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz /* Hide lddata for static binaries */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz up->u_auxv[i].a_un.a_val = sedp->sed_lddata;
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * The last thing we do here is clear spd->spd_handler. This is
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * important because if we're already a branded process and if this
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * exec succeeds, there is a window between when the exec() first
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * returns to the userland of the new process and when our brand
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * library get's initialized, during which we don't want system
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * calls to be re-directed to our brand library since it hasn't
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz * been initialized yet.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * Set up the table indicating which system calls we want to
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * interpose on. We should probably build this automatically from
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * a list of system calls that is shared with the user-space
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * library.
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_read] = 1; /* 3 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_write] = 1; /* 4 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_wait] = 1; /* 7 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_time] = 1; /* 13 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_getpid] = 1; /* 20 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_mount] = 1; /* 21 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_getuid] = 1; /* 24 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_times] = 1; /* 43 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_getgid] = 1; /* 47 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_utssys] = 1; /* 57 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_readlink] = 1; /* 90 */
628e3cbed6489fa1db545d8524a06cd6535af456Edward Pilatowicz sn1_emulation_table[SYS_uname] = 1; /* 135 */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * If there are any zones using this brand, we can't allow it to be
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * unloaded.