/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1991 NeXT Computer, Inc. All rights reserved.
*
typedef struct {
int flavor; /* the number for this flavor */
- int count; /* count of ints in this flavor */
+ mach_msg_type_number_t count; /* count of ints in this flavor */
} mythread_state_flavor_t;
#if defined (__ppc__)
+/* 64 bit */
+mythread_state_flavor_t thread_flavor_array64[]={
+ {PPC_THREAD_STATE64 , PPC_THREAD_STATE64_COUNT},
+ {PPC_FLOAT_STATE, PPC_FLOAT_STATE_COUNT},
+ {PPC_EXCEPTION_STATE64, PPC_EXCEPTION_STATE64_COUNT},
+ {PPC_VECTOR_STATE, PPC_VECTOR_STATE_COUNT}
+ };
+/* 32 bit */
mythread_state_flavor_t thread_flavor_array[]={
{PPC_THREAD_STATE , PPC_THREAD_STATE_COUNT},
{PPC_FLOAT_STATE, PPC_FLOAT_STATE_COUNT},
{PPC_EXCEPTION_STATE, PPC_EXCEPTION_STATE_COUNT},
{PPC_VECTOR_STATE, PPC_VECTOR_STATE_COUNT}
};
-int mynum_flavors=4;
+
#elif defined (__i386__)
mythread_state_flavor_t thread_flavor_array [] = {
- {i386_THREAD_STATE, i386_THREAD_STATE_COUNT},
- {i386_THREAD_FPSTATE, i386_THREAD_FPSTATE_COUNT},
- {i386_THREAD_EXCEPTSTATE, i386_THREAD_EXCEPTSTATE_COUNT},
- {i386_THREAD_CTHREADSTATE, i386_THREAD_CTHREADSTATE_COUNT},
- {i386_NEW_THREAD_STATE, i386_NEW_THREAD_STATE_COUNT},
- {i386_FLOAT_STATE, i386_FLOAT_STATE_COUNT},
- {i386_ISA_PORT_MAP_STATE, i386_ISA_PORT_MAP_STATE_COUNT},
- {i386_V86_ASSIST_STATE, i386_V86_ASSIST_STATE_COUNT},
- {THREAD_SYSCALL_STATE, i386_THREAD_SYSCALL_STATE_COUNT}
+ {x86_THREAD_STATE, x86_THREAD_STATE_COUNT},
+ {x86_FLOAT_STATE, x86_FLOAT_STATE_COUNT},
+ {x86_EXCEPTION_STATE, x86_EXCEPTION_STATE_COUNT},
};
-int mynum_flavors=9;
-
+int mynum_flavors=3;
#else
#error architecture not supported
#endif
int hoffset;
mythread_state_flavor_t *flavors;
int tstate_size;
+ int flavor_count;
} tir_t;
/* XXX should be static */
void task_act_iterate_wth_args(task_t, void(*)(thread_t, void *), void *);
+#ifdef SECURE_KERNEL
+__private_extern__ int do_coredump = 0; /* default: don't dump cores */
+#else
__private_extern__ int do_coredump = 1; /* default: dump cores */
+#endif
__private_extern__ int sugid_coredump = 0; /* default: but not SGUID binaries */
void
* the appropriate thread state struct for each
* thread state flavor.
*/
- for (i = 0; i < mynum_flavors; i++) {
+ for (i = 0; i < t->flavor_count; i++) {
*(mythread_state_flavor_t *)(header+hoffset) =
flavors[i];
hoffset += sizeof(mythread_state_flavor_t);
t->hoffset = hoffset;
}
+
/*
- * Create a core image on the file "core".
+ * coredump
+ *
+ * Description: Create a core image on the file "core" for the process
+ * indicated
+ *
+ * Parameters: core_proc Process to dump core [*]
+ *
+ * Returns: 0 Success
+ * EFAULT Failed
+ *
+ * IMPORTANT: This function can only be called on the current process, due
+ * to assumptions below; see variable declaration section for
+ * details.
*/
#define MAX_TSTATE_FLAVORS 10
int
-coredump(struct proc *p)
+coredump(proc_t core_proc)
{
- int error=0;
- kauth_cred_t cred = kauth_cred_get();
+/* Begin assumptions that limit us to only the current process */
+ vfs_context_t ctx = vfs_context_current();
+ vm_map_t map = current_map();
+ task_t task = current_task();
+/* End assumptions */
+ kauth_cred_t cred = vfs_context_ucred(ctx);
+ int error = 0;
struct vnode_attr va;
- struct vfs_context context;
- vm_map_t map;
int thread_count, segment_count;
int command_size, header_size, tstate_size;
int hoffset;
vm_prot_t prot;
vm_prot_t maxprot;
vm_inherit_t inherit;
- int error1;
- task_t task;
- char core_name[MAXCOMLEN+6];
+ int error1 = 0;
+ char stack_name[MAXCOMLEN+6];
+ char *alloced_name = NULL;
char *name;
mythread_state_flavor_t flavors[MAX_TSTATE_FLAVORS];
vm_size_t mapsize;
int i;
- int nesting_depth = 0;
+ uint32_t nesting_depth = 0;
kern_return_t kret;
struct vm_region_submap_info_64 vbr;
- int vbrcount=0;
+ mach_msg_type_number_t vbrcount = 0;
tir_t tir1;
struct vnode * vp;
- struct mach_header *mh;
- struct mach_header_64 *mh64;
+ struct mach_header *mh = NULL; /* protected by is_64 */
+ struct mach_header_64 *mh64 = NULL; /* protected by is_64 */
int is_64 = 0;
size_t mach_header_sz = sizeof(struct mach_header);
size_t segment_command_sz = sizeof(struct segment_command);
return (EFAULT);
}
- if (IS_64BIT_PROCESS(p)) {
+ if (IS_64BIT_PROCESS(core_proc)) {
is_64 = 1;
mach_header_sz = sizeof(struct mach_header_64);
segment_command_sz = sizeof(struct segment_command_64);
}
- task = current_task();
- map = current_map();
mapsize = get_vmmap_size(map);
- if (mapsize >= p->p_rlimit[RLIMIT_CORE].rlim_cur)
+ if (mapsize >= core_proc->p_rlimit[RLIMIT_CORE].rlim_cur)
return (EFAULT);
(void) task_suspend(task);
- /* create name according to sysctl'able format string */
- name = proc_core_name(p->p_comm, kauth_cred_getuid(cred), p->p_pid);
+ MALLOC(alloced_name, char *, MAXPATHLEN, M_TEMP, M_NOWAIT | M_ZERO);
+ /* create name according to sysctl'able format string */
/* if name creation fails, fall back to historical behaviour... */
- if (name == NULL) {
- sprintf(core_name, "/cores/core.%d", p->p_pid);
- name = core_name;
- }
- context.vc_proc = p;
- context.vc_ucred = cred;
+ if (proc_core_name(core_proc->p_comm, kauth_cred_getuid(cred),
+ core_proc->p_pid, alloced_name, MAXPATHLEN)) {
+ snprintf(stack_name, sizeof(stack_name),
+ "/cores/core.%d", core_proc->p_pid);
+ name = stack_name;
+ } else
+ name = alloced_name;
- if ((error = vnode_open(name, (O_CREAT | FWRITE | O_NOFOLLOW), S_IRUSR, VNODE_LOOKUP_NOFOLLOW, &vp, &context)))
- return (error);
+ if ((error = vnode_open(name, (O_CREAT | FWRITE | O_NOFOLLOW), S_IRUSR, VNODE_LOOKUP_NOFOLLOW, &vp, ctx)))
+ goto out2;
VATTR_INIT(&va);
VATTR_WANTED(&va, va_nlink);
/* Don't dump to non-regular files or files with links. */
if (vp->v_type != VREG ||
- vnode_getattr(vp, &va, &context) || va.va_nlink != 1) {
+ vnode_getattr(vp, &va, ctx) || va.va_nlink != 1) {
error = EFAULT;
goto out;
}
VATTR_INIT(&va); /* better to do it here than waste more stack in vnode_setsize */
VATTR_SET(&va, va_data_size, 0);
- vnode_setattr(vp, &va, &context);
- p->p_acflag |= ACORE;
+ vnode_setattr(vp, &va, ctx);
+ core_proc->p_acflag |= ACORE;
/*
* If the task is modified while dumping the file
thread_count = get_task_numacts(task);
segment_count = get_vmmap_entries(map); /* XXX */
- bcopy(thread_flavor_array,flavors,sizeof(thread_flavor_array));
+#if defined (__ppc__)
+ if (is_64) {
+ tir1.flavor_count = sizeof(thread_flavor_array64)/sizeof(mythread_state_flavor_t);
+ bcopy(thread_flavor_array64, flavors,sizeof(thread_flavor_array64));
+ } else {
+#endif /* __ppc __ */
+ tir1.flavor_count = sizeof(thread_flavor_array)/sizeof(mythread_state_flavor_t);
+ bcopy(thread_flavor_array, flavors,sizeof(thread_flavor_array));
+#if defined (__ppc__)
+ }
+#endif /* __ppc __ */
tstate_size = 0;
- for (i = 0; i < mynum_flavors; i++)
+ for (i = 0; i < tir1.flavor_count; i++)
tstate_size += sizeof(mythread_state_flavor_t) +
(flavors[i].count * sizeof(int));
-
command_size = segment_count * segment_command_sz +
thread_count*sizeof(struct thread_command) +
tstate_size*thread_count;
xfer_vmsize = INT_MAX;
error = vn_rdwr_64(UIO_WRITE, vp,
vmoffset, xfer_vmsize, xfer_foffset,
- (IS_64BIT_PROCESS(p) ? UIO_USERSPACE64 : UIO_USERSPACE32),
- IO_NODELOCKED|IO_UNIT, cred, (int *) 0, p);
+ (IS_64BIT_PROCESS(core_proc) ? UIO_USERSPACE64 : UIO_USERSPACE32),
+ IO_NODELOCKED|IO_UNIT, cred, (int *) 0, core_proc);
tmp_vmsize -= xfer_vmsize;
xfer_foffset += xfer_vmsize;
}
*/
if (is_64) {
mh64->ncmds -= segment_count;
+ mh64->sizeofcmds -= segment_count * segment_command_sz;
} else {
mh->ncmds -= segment_count;
+ mh->sizeofcmds -= segment_count * segment_command_sz;
}
tir1.header = header;
* file. OK to use a 32 bit write for this.
*/
error = vn_rdwr(UIO_WRITE, vp, (caddr_t)header, header_size, (off_t)0,
- UIO_SYSSPACE32, IO_NODELOCKED|IO_UNIT, cred, (int *) 0, p);
+ UIO_SYSSPACE32, IO_NODELOCKED|IO_UNIT, cred, (int *) 0, core_proc);
kmem_free(kernel_map, header, header_size);
out:
- error1 = vnode_close(vp, FWRITE, &context);
+ error1 = vnode_close(vp, FWRITE, ctx);
+out2:
+ if (alloced_name != NULL)
+ FREE(alloced_name, M_TEMP);
if (error == 0)
error = error1;
projects / apple / xnu.git / blobdiff