1 files changed, 49 insertions, 10 deletions

diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index e58e8c207782..76e41805b92d 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -7,34 +7,73 @@
 #include <linux/fs.h>
 #include <asm/siginfo.h>
 
+#ifdef CONFIG_COREDUMP
 struct core_vma_metadata {
 	unsigned long start, end;
 	unsigned long 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);
 int dump_user_range(struct coredump_params *cprm, unsigned long start,
 		    unsigned long len);
-int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count,
-		      struct core_vma_metadata **vma_meta,
-		      size_t *vma_data_size_ptr);
-#ifdef CONFIG_COREDUMP
 extern void do_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 do_coredump(const kernel_siginfo_t *siginfo) {}
+
+#define coredump_report(...)
+#define coredump_report_failure(...)
+
 #endif
 
-extern int core_uses_pid;
-extern char core_pattern[];
-extern unsigned int core_pipe_limit;
+#if defined(CONFIG_COREDUMP) && defined(CONFIG_SYSCTL)
+extern void validate_coredump_safety(void);
+#else
+static inline void validate_coredump_safety(void) {}
+#endif
 
 #endif /* _LINUX_COREDUMP_H */