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 void
net_stage_reset(struct kdp_output_stage * stage)38 net_stage_reset(struct kdp_output_stage *stage)
39 {
40 stage->kos_bypass = false;
41 stage->kos_bytes_written = 0;
42 }
43
44 static kern_return_t
net_stage_outproc(struct kdp_output_stage * stage,unsigned int request,char * corename,uint64_t length,void * data)45 net_stage_outproc(struct kdp_output_stage *stage, unsigned int request,
46 char *corename, uint64_t length, void * data)
47 {
48 kern_return_t err = KERN_SUCCESS;
49
50 assert(STAILQ_NEXT(stage, kos_next) == NULL);
51
52 err = kdp_send_crashdump_data(request, corename, length, data);
53 if (KERN_SUCCESS != err) {
54 kern_coredump_log(NULL, "kdp_send_crashdump_data returned 0x%x\n", err);
55 return err;
56 }
57
58 if (KDP_DATA == request) {
59 stage->kos_bytes_written += length;
60 }
61
62 return err;
63 }
64
65 static void
net_stage_free(struct kdp_output_stage * stage)66 net_stage_free(struct kdp_output_stage *stage)
67 {
68 stage->kos_initialized = false;
69 }
70
71 kern_return_t
net_stage_initialize(struct kdp_output_stage * stage)72 net_stage_initialize(struct kdp_output_stage *stage)
73 {
74 assert(stage != NULL);
75 assert(stage->kos_initialized == false);
76
77 stage->kos_funcs.kosf_reset = net_stage_reset;
78 stage->kos_funcs.kosf_outproc = net_stage_outproc;
79 stage->kos_funcs.kosf_free = net_stage_free;
80
81 stage->kos_initialized = true;
82
83 return KERN_SUCCESS;
84 }
85
86 #endif /* CONFIG_KDP_INTERACTIVE_DEBUGGING */
87