mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
281
drivers/misc/tima_debug_log.c
Executable file
281
drivers/misc/tima_debug_log.c
Executable file
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@ -0,0 +1,281 @@
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/mm.h>
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#include <linux/highmem.h>
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#include <linux/io.h>
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#include <linux/types.h>
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#include <linux/bootmem.h>
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#ifdef CONFIG_NO_BOOTMEM
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#include <linux/memblock.h>
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#endif
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#ifdef CONFIG_TIMA_RKP
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#include <linux/rkp_entry.h>
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#endif
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#ifdef CONFIG_KNOX_KAP
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extern int boot_mode_security;
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#endif
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#define SECURE_LOG 0
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#define DEBUG_LOG 1
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#ifdef CONFIG_TIMA_RKP
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#define DEBUG_RKP_LOG_START TIMA_DEBUG_LOG_START
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#define SECURE_RKP_LOG_START TIMA_SEC_LOG
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#endif
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#define DEBUG_LOG_SIZE (1<<20)
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#define DEBUG_LOG_MAGIC (0xaabbccdd)
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#define DEBUG_LOG_ENTRY_SIZE 128
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typedef struct debug_log_entry_s
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{
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uint32_t timestamp; /* timestamp at which log entry was made*/
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uint32_t logger_id; /* id is 1 for tima, 2 for lkmauth app */
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#define DEBUG_LOG_MSG_SIZE (DEBUG_LOG_ENTRY_SIZE - sizeof(uint32_t) - sizeof(uint32_t))
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char log_msg[DEBUG_LOG_MSG_SIZE]; /* buffer for the entry */
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} __attribute__ ((packed)) debug_log_entry_t;
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typedef struct debug_log_header_s
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{
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uint32_t magic; /* magic number */
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uint32_t log_start_addr; /* address at which log starts */
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uint32_t log_write_addr; /* address at which next entry is written*/
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uint32_t num_log_entries; /* number of log entries */
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char padding[DEBUG_LOG_ENTRY_SIZE - 4 * sizeof(uint32_t)];
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} __attribute__ ((packed)) debug_log_header_t;
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#define DRIVER_DESC "A kernel module to read tima debug log"
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unsigned long *tima_log_addr = 0;
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unsigned long *tima_debug_log_addr = 0;
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unsigned long *tima_secure_log_addr = 0;
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#ifdef CONFIG_TIMA_RKP
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unsigned long *tima_debug_rkp_log_addr = 0;
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unsigned long *tima_secure_rkp_log_addr = 0;
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#endif
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unsigned long tima_debug_logging_start = 0;
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#ifdef CONFIG_TIMA_RKP
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static int tima_setup_rkp_mem(void){
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(TIMA_DEBUG_LOG_START, TIMA_DEBUG_LOG_SIZE) ||
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memblock_reserve(TIMA_DEBUG_LOG_START, TIMA_DEBUG_LOG_SIZE)) {
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#else
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if(reserve_bootmem(TIMA_DEBUG_LOG_START, TIMA_DEBUG_LOG_SIZE, BOOTMEM_EXCLUSIVE)){
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#endif
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pr_err("%s: RKP failed reserving size %d " \
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"at base 0x%x\n", __func__, TIMA_DEBUG_LOG_SIZE, TIMA_DEBUG_LOG_START);
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goto out;
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}
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pr_info("RKP :%s, base:%x, size:%x \n", __func__,TIMA_DEBUG_LOG_START, TIMA_DEBUG_LOG_SIZE);
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(TIMA_SEC_LOG, TIMA_SEC_LOG_SIZE) ||
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memblock_reserve(TIMA_SEC_LOG, TIMA_SEC_LOG_SIZE)) {
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#else
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if(reserve_bootmem(TIMA_SEC_LOG, TIMA_SEC_LOG_SIZE, BOOTMEM_EXCLUSIVE)){
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#endif
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pr_err("%s: RKP failed reserving size %d " \
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"at base 0x%x\n", __func__, TIMA_SEC_LOG_SIZE, TIMA_SEC_LOG);
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goto out;
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}
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pr_info("RKP :%s, base:%x, size:%x \n", __func__,TIMA_SEC_LOG, TIMA_SEC_LOG_SIZE);
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(TIMA_PHYS_MAP, TIMA_PHYS_MAP_SIZE) ||
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memblock_reserve(TIMA_PHYS_MAP, TIMA_PHYS_MAP_SIZE)) {
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#else
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if(reserve_bootmem(TIMA_PHYS_MAP, TIMA_PHYS_MAP_SIZE, BOOTMEM_EXCLUSIVE)){
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#endif
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pr_err("%s: RKP failed reserving size %d " \
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"at base 0x%x\n", __func__, TIMA_PHYS_MAP_SIZE, TIMA_PHYS_MAP);
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goto out;
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}
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pr_info("RKP :%s, base:%x, size:%x \n", __func__,TIMA_PHYS_MAP, TIMA_PHYS_MAP_SIZE);
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(TIMA_DASHBOARD_START, TIMA_DASHBOARD_SIZE) ||
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memblock_reserve(TIMA_DASHBOARD_START, TIMA_DASHBOARD_SIZE)) {
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#else
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if(reserve_bootmem(TIMA_DASHBOARD_START, TIMA_DASHBOARD_SIZE, BOOTMEM_EXCLUSIVE)){
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#endif
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pr_err("%s: RKP failed reserving size %d " \
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"at base 0x%x\n", __func__, TIMA_DASHBOARD_SIZE, TIMA_DASHBOARD_START);
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goto out;
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}
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pr_info("RKP :%s, base:%x, size:%x \n", __func__,TIMA_DASHBOARD_START, TIMA_DASHBOARD_SIZE);
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(TIMA_ROBUF_START, TIMA_ROBUF_SIZE) ||
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memblock_reserve(TIMA_ROBUF_START, TIMA_ROBUF_SIZE)) {
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#else
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if(reserve_bootmem(TIMA_ROBUF_START, TIMA_ROBUF_SIZE, BOOTMEM_EXCLUSIVE)){
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#endif
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pr_err("%s: RKP failed reserving size %d " \
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"at base 0x%x\n", __func__, TIMA_ROBUF_SIZE, TIMA_ROBUF_START);
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goto out;
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}
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pr_info("RKP :%s, base:%x, size:%x \n", __func__,TIMA_ROBUF_START, TIMA_ROBUF_SIZE);
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(TIMA_VMM_START, TIMA_VMM_SIZE) ||
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memblock_reserve(TIMA_VMM_START, TIMA_VMM_SIZE)) {
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#else
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if(reserve_bootmem(TIMA_VMM_START, TIMA_VMM_SIZE, BOOTMEM_EXCLUSIVE)){
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#endif
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pr_err("%s: RKP failed reserving size %d " \
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"at base 0x%x\n", __func__, TIMA_VMM_SIZE, TIMA_VMM_START);
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goto out;
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}
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pr_info("RKP :%s, base:%x, size:%x \n", __func__,TIMA_VMM_START, TIMA_VMM_SIZE);
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return 1;
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out:
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return 0;
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}
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#else /* !CONFIG_TIMA_RKP*/
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static int tima_setup_rkp_mem(void){
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return 1;
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}
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#endif
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static int __init sec_tima_log_setup(char *str)
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{
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unsigned size = memparse(str, &str);
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unsigned long base = 0;
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/* If we encounter any problem parsing str ... */
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if (!size || size != roundup_pow_of_two(size) || *str != '@'
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|| kstrtoul(str + 1, 0, &base))
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goto out;
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#ifdef CONFIG_NO_BOOTMEM
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if (memblock_is_region_reserved(base, size) ||
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memblock_reserve(base, size)) {
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#else
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if (reserve_bootmem(base , size, BOOTMEM_EXCLUSIVE)) {
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#endif
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pr_err("%s: failed reserving size %d " \
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"at base 0x%lx\n", __func__, size, base);
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goto out;
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}
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pr_info("tima :%s, base:%lx, size:%x \n", __func__,base, size);
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tima_debug_logging_start = base;
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#ifdef CONFIG_KNOX_KAP
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if (!boot_mode_security) goto out;
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#endif
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if( !tima_setup_rkp_mem()) goto out;
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return 1;
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out:
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return 0;
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}
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__setup("sec_tima_log=", sec_tima_log_setup);
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ssize_t tima_read(struct file *filep, char __user *buf, size_t size, loff_t *offset)
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{
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/* First check is to get rid of integer overflow exploits */
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if (size > DEBUG_LOG_SIZE || (*offset) + size > DEBUG_LOG_SIZE) {
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printk(KERN_ERR"Extra read\n");
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return -EINVAL;
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}
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if (!strcmp(filep->f_path.dentry->d_iname, "tima_secure_log"))
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tima_log_addr = tima_secure_log_addr;
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else if( !strcmp(filep->f_path.dentry->d_iname, "tima_debug_log"))
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tima_log_addr = tima_debug_log_addr;
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#ifdef CONFIG_TIMA_RKP
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else if( !strcmp(filep->f_path.dentry->d_iname, "tima_debug_rkp_log"))
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tima_log_addr = tima_debug_rkp_log_addr;
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else
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tima_log_addr = tima_secure_rkp_log_addr;
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#endif
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if (copy_to_user(buf, (const char *)tima_log_addr + (*offset), size)) {
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printk(KERN_ERR"Copy to user failed\n");
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return -1;
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} else {
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*offset += size;
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return size;
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}
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}
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static const struct file_operations tima_proc_fops = {
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.read = tima_read,
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};
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/**
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* tima_debug_log_read_init - Initialization function for TIMA
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*
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* It creates and initializes tima proc entry with initialized read handler
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*/
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static int __init tima_debug_log_read_init(void)
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{
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unsigned long tima_secure_logging_start = 0;
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tima_secure_logging_start = tima_debug_logging_start + DEBUG_LOG_SIZE;
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if (proc_create("tima_debug_log", 0644,NULL, &tima_proc_fops) == NULL) {
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printk(KERN_ERR"tima_debug_log_read_init: Error creating proc entry\n");
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goto error_return;
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}
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if (proc_create("tima_secure_log", 0644,NULL, &tima_proc_fops) == NULL) {
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printk(KERN_ERR"tima_secure_log_read_init: Error creating proc entry\n");
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goto remove_debug_entry;
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}
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printk(KERN_INFO"tima_debug_log_read_init: Registering /proc/tima_debug_log Interface \n");
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#ifdef CONFIG_TIMA_RKP
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if (proc_create("tima_debug_rkp_log", 0644,NULL, &tima_proc_fops) == NULL) {
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printk(KERN_ERR"tima_debug_rkp_log_read_init: Error creating proc entry\n");
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goto remove_secure_entry;
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}
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if (proc_create("tima_secure_rkp_log", 0644,NULL, &tima_proc_fops) == NULL) {
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printk(KERN_ERR"tima_secure_rkp_log_read_init: Error creating proc entry\n");
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goto remove_debug_rkp_entry;
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}
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#endif
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tima_debug_log_addr = (unsigned long *)phys_to_virt(tima_debug_logging_start);
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tima_secure_log_addr = (unsigned long *)phys_to_virt(tima_secure_logging_start);
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#ifdef CONFIG_TIMA_RKP
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tima_debug_rkp_log_addr = (unsigned long *)phys_to_virt(DEBUG_RKP_LOG_START);
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tima_secure_rkp_log_addr = (unsigned long *)phys_to_virt(SECURE_RKP_LOG_START);
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#endif
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return 0;
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#ifdef CONFIG_TIMA_RKP
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remove_debug_rkp_entry:
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remove_proc_entry("tima_debug_rkp_log", NULL);
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remove_secure_entry:
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remove_proc_entry("tima_secure_log", NULL);
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#endif
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remove_debug_entry:
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remove_proc_entry("tima_debug_log", NULL);
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error_return:
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return -1;
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}
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/**
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* tima_debug_log_read_exit - Cleanup Code for TIMA
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*
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* It removes /proc/tima proc entry and does the required cleanup operations
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*/
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static void __exit tima_debug_log_read_exit(void)
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{
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remove_proc_entry("tima_debug_log", NULL);
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remove_proc_entry("tima_secure_log", NULL);
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#ifdef CONFIG_TIMA_RKP
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remove_proc_entry("tima_debug_rkp_log", NULL);
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remove_proc_entry("tima_secure_rkp_log", NULL);
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#endif
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printk(KERN_INFO"Deregistering /proc/tima_debug_log Interface\n");
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}
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module_init(tima_debug_log_read_init);
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module_exit(tima_debug_log_read_exit);
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MODULE_DESCRIPTION(DRIVER_DESC);
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