1 /*
2 * Copyright (c) 2021 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #ifdef CONFIG_KDP_INTERACTIVE_DEBUGGING
30
31 #include <mach/mach_types.h>
32 #include <IOKit/IOTypes.h>
33 #include <kdp/output_stages/output_stages.h>
34 #include <kdp/kdp_core.h>
35 #include <kdp/processor_core.h>
36
37 static kern_return_t
net_stage_reset(struct kdp_output_stage * stage,__unused const char * corename,__unused kern_coredump_type_t coretype)38 net_stage_reset(struct kdp_output_stage *stage, __unused const char *corename, __unused kern_coredump_type_t coretype)
39 {
40 stage->kos_bypass = false;
41 stage->kos_bytes_written = 0;
42
43 return KERN_SUCCESS;
44 }
45
46 static kern_return_t
net_stage_outproc(struct kdp_output_stage * stage,unsigned int request,char * corename,uint64_t length,void * data)47 net_stage_outproc(struct kdp_output_stage *stage, unsigned int request,
48 char *corename, uint64_t length, void * data)
49 {
50 kern_return_t err = KERN_SUCCESS;
51
52 assert(STAILQ_NEXT(stage, kos_next) == NULL);
53
54 err = kdp_send_crashdump_data(request, corename, length, data);
55 if (KERN_SUCCESS != err) {
56 kern_coredump_log(NULL, "kdp_send_crashdump_data returned 0x%x\n", err);
57 return err;
58 }
59
60 if (KDP_DATA == request) {
61 stage->kos_bytes_written += length;
62 }
63
64 return err;
65 }
66
67 static void
net_stage_free(struct kdp_output_stage * stage)68 net_stage_free(struct kdp_output_stage *stage)
69 {
70 stage->kos_initialized = false;
71 }
72
73 kern_return_t
net_stage_initialize(struct kdp_output_stage * stage)74 net_stage_initialize(struct kdp_output_stage *stage)
75 {
76 assert(stage != NULL);
77 assert(stage->kos_initialized == false);
78
79 stage->kos_funcs.kosf_reset = net_stage_reset;
80 stage->kos_funcs.kosf_outproc = net_stage_outproc;
81 stage->kos_funcs.kosf_free = net_stage_free;
82
83 stage->kos_initialized = true;
84
85 return KERN_SUCCESS;
86 }
87
88 #endif /* CONFIG_KDP_INTERACTIVE_DEBUGGING */
89