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02aff8db64
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Merge tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"We've got a reasonably broad set of audit patches for the v5.2 merge
window, the highlights are below:
- The biggest change, and the source of all the arch/* changes, is
the patchset from Dmitry to help enable some of the work he is
doing around PTRACE_GET_SYSCALL_INFO.
To be honest, including this in the audit tree is a bit of a
stretch, but it does help move audit a little further along towards
proper syscall auditing for all arches, and everyone else seemed to
agree that audit was a "good" spot for this to land (or maybe they
just didn't want to merge it? dunno.).
- We can now audit time/NTP adjustments.
- We continue the work to connect associated audit records into a
single event"
* tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: (21 commits)
audit: fix a memory leak bug
ntp: Audit NTP parameters adjustment
timekeeping: Audit clock adjustments
audit: purge unnecessary list_empty calls
audit: link integrity evm_write_xattrs record to syscall event
syscall_get_arch: add "struct task_struct *" argument
unicore32: define syscall_get_arch()
Move EM_UNICORE to uapi/linux/elf-em.h
nios2: define syscall_get_arch()
nds32: define syscall_get_arch()
Move EM_NDS32 to uapi/linux/elf-em.h
m68k: define syscall_get_arch()
hexagon: define syscall_get_arch()
Move EM_HEXAGON to uapi/linux/elf-em.h
h8300: define syscall_get_arch()
c6x: define syscall_get_arch()
arc: define syscall_get_arch()
Move EM_ARCOMPACT and EM_ARCV2 to uapi/linux/elf-em.h
audit: Make audit_log_cap and audit_copy_inode static
audit: connect LOGIN record to its syscall record
...
143 lines
3.4 KiB
C
143 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_SPARC_SYSCALL_H
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#define __ASM_SPARC_SYSCALL_H
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#include <uapi/linux/audit.h>
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#include <linux/kernel.h>
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#include <linux/compat.h>
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#include <linux/sched.h>
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#include <asm/ptrace.h>
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#include <asm/thread_info.h>
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/*
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* The syscall table always contains 32 bit pointers since we know that the
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* address of the function to be called is (way) below 4GB. So the "int"
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* type here is what we want [need] for both 32 bit and 64 bit systems.
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*/
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extern const unsigned int sys_call_table[];
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/* The system call number is given by the user in %g1 */
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static inline long syscall_get_nr(struct task_struct *task,
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struct pt_regs *regs)
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{
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int syscall_p = pt_regs_is_syscall(regs);
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return (syscall_p ? regs->u_regs[UREG_G1] : -1L);
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}
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static inline void syscall_rollback(struct task_struct *task,
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struct pt_regs *regs)
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{
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/* XXX This needs some thought. On Sparc we don't
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* XXX save away the original %o0 value somewhere.
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* XXX Instead we hold it in register %l5 at the top
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* XXX level trap frame and pass this down to the signal
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* XXX dispatch code which is the only place that value
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* XXX ever was needed.
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*/
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}
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#ifdef CONFIG_SPARC32
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static inline bool syscall_has_error(struct pt_regs *regs)
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{
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return (regs->psr & PSR_C) ? true : false;
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}
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static inline void syscall_set_error(struct pt_regs *regs)
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{
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regs->psr |= PSR_C;
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}
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static inline void syscall_clear_error(struct pt_regs *regs)
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{
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regs->psr &= ~PSR_C;
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}
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#else
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static inline bool syscall_has_error(struct pt_regs *regs)
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{
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return (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY)) ? true : false;
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}
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static inline void syscall_set_error(struct pt_regs *regs)
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{
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regs->tstate |= (TSTATE_XCARRY | TSTATE_ICARRY);
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}
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static inline void syscall_clear_error(struct pt_regs *regs)
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{
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regs->tstate &= ~(TSTATE_XCARRY | TSTATE_ICARRY);
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}
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#endif
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static inline long syscall_get_error(struct task_struct *task,
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struct pt_regs *regs)
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{
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long val = regs->u_regs[UREG_I0];
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return (syscall_has_error(regs) ? -val : 0);
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}
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static inline long syscall_get_return_value(struct task_struct *task,
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struct pt_regs *regs)
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{
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long val = regs->u_regs[UREG_I0];
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return val;
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}
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static inline void syscall_set_return_value(struct task_struct *task,
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struct pt_regs *regs,
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int error, long val)
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{
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if (error) {
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syscall_set_error(regs);
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regs->u_regs[UREG_I0] = -error;
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} else {
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syscall_clear_error(regs);
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regs->u_regs[UREG_I0] = val;
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}
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}
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static inline void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs,
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unsigned long *args)
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{
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int zero_extend = 0;
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unsigned int j;
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unsigned int n = 6;
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#ifdef CONFIG_SPARC64
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if (test_tsk_thread_flag(task, TIF_32BIT))
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zero_extend = 1;
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#endif
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for (j = 0; j < n; j++) {
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unsigned long val = regs->u_regs[UREG_I0 + j];
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if (zero_extend)
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args[j] = (u32) val;
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else
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args[j] = val;
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}
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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unsigned int i;
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for (i = 0; i < 6; i++)
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regs->u_regs[UREG_I0 + i] = args[i];
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}
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static inline int syscall_get_arch(struct task_struct *task)
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{
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#if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT)
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return test_tsk_thread_flag(task, TIF_32BIT)
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? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64;
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#elif defined(CONFIG_SPARC64)
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return AUDIT_ARCH_SPARC64;
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#else
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return AUDIT_ARCH_SPARC;
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#endif
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}
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#endif /* __ASM_SPARC_SYSCALL_H */
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