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https://github.com/rd-stuffs/msm-4.14.git
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266f8dbc26
KP Report which was sent to Linux from QHEE KP will be processed by kernel and details of report will be logged into ring buffer. However each report should be logged once and if the report is already logged we can skip it from logging again. Also actor name field of KP report is getting logged now. Change-Id: I64ca3b9f4acc77db8ffbcc4dec92ebc4031dd2d1 Signed-off-by: Amareswar Reddy Valasa <avalasa@codeaurora.org>
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*
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* Copyright (c) 2015, 2017-2018 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __SEEMP_LOGK_STUB__
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#define __SEEMP_LOGK_STUB__
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#ifdef CONFIG_SEEMP_CORE
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#include <linux/kernel.h>
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#include <linux/seemp_api.h>
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#include <linux/socket.h>
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#define MAX_BUF_SIZE 188
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#define SEEMP_LOGK_API_SIZE sizeof(int)
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/* Write: api_id + skip encoding byte + params */
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#define SEEMP_LOGK_RECORD(api_id, format, ...) do { \
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*((int *)(buf - SEEMP_LOGK_API_SIZE)) = api_id; \
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snprintf(buf + 1, MAX_BUF_SIZE - 1, format, ##__VA_ARGS__); \
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} while (0)
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extern void *(*seemp_logk_kernel_begin)(char **buf);
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extern void (*seemp_logk_kernel_end)(void *blck);
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static inline void *seemp_setup_buf(char **buf)
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{
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void *blck;
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if (seemp_logk_kernel_begin && seemp_logk_kernel_end) {
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blck = seemp_logk_kernel_begin(buf);
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if (!*buf) {
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seemp_logk_kernel_end(blck);
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return NULL;
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}
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} else {
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return NULL;
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}
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return blck;
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}
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/*
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* NOTE: only sendto is going to be instrumented
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* since send sys call internally calls sendto
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* with 2 extra parameters
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*/
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static inline void seemp_logk_sendto(int fd, void __user *buff, size_t len,
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unsigned int flags, struct sockaddr __user *addr, int addr_len)
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{
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char *buf = NULL;
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void *blck = NULL;
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/*sets up buf and blck correctly*/
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blck = seemp_setup_buf(&buf);
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if (!blck)
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return;
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/*fill the buf*/
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SEEMP_LOGK_RECORD(SEEMP_API_kernel__sendto, "len=%u,fd=%d",
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(unsigned int)len, fd);
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seemp_logk_kernel_end(blck);
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}
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static inline void seemp_logk_rtic(__u8 type, pid_t pid, __u8 asset_id[0x20],
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__u8 asset_category, __u8 response, __u8 process_name[16])
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{
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char *buf = NULL;
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void *blck = NULL;
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blck = seemp_setup_buf(&buf);
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if (!blck)
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return;
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SEEMP_LOGK_RECORD(SEEMP_API_kernel__rtic,
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"app_pid=%d,rtic_type=%u,asset_id=%s,asset_category=%u,response=%u,process_name=%s",
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pid, type, asset_id, asset_category, response, process_name);
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seemp_logk_kernel_end(blck);
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}
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#else
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static inline void seemp_logk_sendto(int fd, void __user *buff,
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size_t len, unsigned int flags, struct sockaddr __user *addr,
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int addr_len)
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{
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}
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static inline void seemp_logk_rtic(__u8 type, __u64 actor, __u8 asset_id[0x20],
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__u8 asset_category, __u8 response)
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{
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}
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#endif
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#endif
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