93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
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#ifndef __KSU_H_ARCH
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#define __KSU_H_ARCH
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#include <linux/version.h>
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#if defined(__aarch64__)
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#define __PT_PARM1_REG regs[0]
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#define __PT_PARM2_REG regs[1]
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#define __PT_PARM3_REG regs[2]
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#define __PT_SYSCALL_PARM4_REG regs[3]
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#define __PT_CCALL_PARM4_REG regs[3]
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#define __PT_PARM5_REG regs[4]
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#define __PT_PARM6_REG regs[5]
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#define __PT_RET_REG regs[30]
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#define __PT_FP_REG regs[29] /* Works only with CONFIG_FRAME_POINTER */
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#define __PT_RC_REG regs[0]
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#define __PT_SP_REG sp
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#define __PT_IP_REG pc
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 16, 0)
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#define PRCTL_SYMBOL "__arm64_sys_prctl"
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#define SYS_READ_SYMBOL "__arm64_sys_read"
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#define SYS_NEWFSTATAT_SYMBOL "__arm64_sys_newfstatat"
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#define SYS_FACCESSAT_SYMBOL "__arm64_sys_faccessat"
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#define SYS_EXECVE_SYMBOL "__arm64_sys_execve"
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#else
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#define PRCTL_SYMBOL "sys_prctl"
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#define SYS_READ_SYMBOL "sys_read"
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#define SYS_NEWFSTATAT_SYMBOL "sys_newfstatat"
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#define SYS_FACCESSAT_SYMBOL "sys_faccessat"
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#define SYS_EXECVE_SYMBOL "sys_execve"
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#endif
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#elif defined(__x86_64__)
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#define __PT_PARM1_REG di
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#define __PT_PARM2_REG si
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#define __PT_PARM3_REG dx
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/* syscall uses r10 for PARM4 */
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#define __PT_SYSCALL_PARM4_REG r10
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#define __PT_CCALL_PARM4_REG cx
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#define __PT_PARM5_REG r8
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#define __PT_PARM6_REG r9
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#define __PT_RET_REG sp
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#define __PT_FP_REG bp
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#define __PT_RC_REG ax
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#define __PT_SP_REG sp
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#define __PT_IP_REG ip
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 16, 0)
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#define PRCTL_SYMBOL "__x64_sys_prctl"
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#define SYS_READ_SYMBOL "__x64_sys_read"
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#define SYS_NEWFSTATAT_SYMBOL "__x64_sys_newfstatat"
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#define SYS_FACCESSAT_SYMBOL "__x64_sys_faccessat"
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#define SYS_EXECVE_SYMBOL "__x64_sys_execve"
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#else
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#define PRCTL_SYMBOL "sys_prctl"
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#define SYS_READ_SYMBOL "sys_read"
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#define SYS_NEWFSTATAT_SYMBOL "sys_newfstatat"
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#define SYS_FACCESSAT_SYMBOL "sys_faccessat"
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#define SYS_EXECVE_SYMBOL "sys_execve"
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#endif
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#else
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#error "Unsupported arch"
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#endif
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/* allow some architecutres to override `struct pt_regs` */
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#ifndef __PT_REGS_CAST
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#define __PT_REGS_CAST(x) (x)
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#endif
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#define PT_REGS_PARM1(x) (__PT_REGS_CAST(x)->__PT_PARM1_REG)
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#define PT_REGS_PARM2(x) (__PT_REGS_CAST(x)->__PT_PARM2_REG)
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#define PT_REGS_PARM3(x) (__PT_REGS_CAST(x)->__PT_PARM3_REG)
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#define PT_REGS_SYSCALL_PARM4(x) (__PT_REGS_CAST(x)->__PT_SYSCALL_PARM4_REG)
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#define PT_REGS_CCALL_PARM4(x) (__PT_REGS_CAST(x)->__PT_CCALL_PARM4_REG)
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#define PT_REGS_PARM5(x) (__PT_REGS_CAST(x)->__PT_PARM5_REG)
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#define PT_REGS_PARM6(x) (__PT_REGS_CAST(x)->__PT_PARM6_REG)
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#define PT_REGS_RET(x) (__PT_REGS_CAST(x)->__PT_RET_REG)
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#define PT_REGS_FP(x) (__PT_REGS_CAST(x)->__PT_FP_REG)
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#define PT_REGS_RC(x) (__PT_REGS_CAST(x)->__PT_RC_REG)
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#define PT_REGS_SP(x) (__PT_REGS_CAST(x)->__PT_SP_REG)
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#define PT_REGS_IP(x) (__PT_REGS_CAST(x)->__PT_IP_REG)
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 16, 0)
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#define PT_REAL_REGS(regs) ((struct pt_regs *)PT_REGS_PARM1(regs))
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#else
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#define PT_REAL_REGS(regs) ((regs))
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#endif
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#endif
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