diff options
Diffstat (limited to 'include/linux/coredump.h')
| -rw-r--r-- | include/linux/coredump.h | 66 |
1 files changed, 60 insertions, 6 deletions
diff --git a/include/linux/coredump.h b/include/linux/coredump.h index abf4b4e65dbb..68861da4cf7c 100644 --- a/include/linux/coredump.h +++ b/include/linux/coredump.h @@ -7,19 +7,73 @@ #include <linux/fs.h> #include <asm/siginfo.h> +#ifdef CONFIG_COREDUMP +struct core_vma_metadata { + unsigned long start, end; + vm_flags_t flags; + unsigned long dump_size; + unsigned long pgoff; + struct file *file; +}; + +struct coredump_params { + const kernel_siginfo_t *siginfo; + struct file *file; + unsigned long limit; + unsigned long mm_flags; + int cpu; + loff_t written; + loff_t pos; + loff_t to_skip; + int vma_count; + size_t vma_data_size; + struct core_vma_metadata *vma_meta; + struct pid *pid; +}; + +extern unsigned int core_file_note_size_limit; + /* * These are the only things you should do on a core-file: use only these * functions to write out all the necessary info. */ -struct coredump_params; -extern int dump_skip(struct coredump_params *cprm, size_t nr); +extern void dump_skip_to(struct coredump_params *cprm, unsigned long to); +extern void dump_skip(struct coredump_params *cprm, size_t nr); extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr); extern int dump_align(struct coredump_params *cprm, int align); -extern void dump_truncate(struct coredump_params *cprm); -#ifdef CONFIG_COREDUMP -extern void do_coredump(const kernel_siginfo_t *siginfo); +int dump_user_range(struct coredump_params *cprm, unsigned long start, + unsigned long len); +extern void vfs_coredump(const kernel_siginfo_t *siginfo); + +/* + * Logging for the coredump code, ratelimited. + * The TGID and comm fields are added to the message. + */ + +#define __COREDUMP_PRINTK(Level, Format, ...) \ + do { \ + char comm[TASK_COMM_LEN]; \ + /* This will always be NUL terminated. */ \ + memcpy(comm, current->comm, sizeof(comm)); \ + printk_ratelimited(Level "coredump: %d(%*pE): " Format "\n", \ + task_tgid_vnr(current), (int)strlen(comm), comm, ##__VA_ARGS__); \ + } while (0) \ + +#define coredump_report(fmt, ...) __COREDUMP_PRINTK(KERN_INFO, fmt, ##__VA_ARGS__) +#define coredump_report_failure(fmt, ...) __COREDUMP_PRINTK(KERN_WARNING, fmt, ##__VA_ARGS__) + +#else +static inline void vfs_coredump(const kernel_siginfo_t *siginfo) {} + +#define coredump_report(...) +#define coredump_report_failure(...) + +#endif + +#if defined(CONFIG_COREDUMP) && defined(CONFIG_SYSCTL) +extern void validate_coredump_safety(void); #else -static inline void do_coredump(const kernel_siginfo_t *siginfo) {} +static inline void validate_coredump_safety(void) {} #endif #endif /* _LINUX_COREDUMP_H */ |