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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#ifndef _UAPI_LINUX_COREDUMP_H#define _UAPI_LINUX_COREDUMP_H
#include <linux/types.h>
/** * coredump_{req,ack} flags * @COREDUMP_KERNEL: kernel writes coredump * @COREDUMP_USERSPACE: userspace writes coredump * @COREDUMP_REJECT: don't generate coredump * @COREDUMP_WAIT: wait for coredump server */enum { COREDUMP_KERNEL = (1ULL << 0), COREDUMP_USERSPACE = (1ULL << 1), COREDUMP_REJECT = (1ULL << 2), COREDUMP_WAIT = (1ULL << 3),};
/** * struct coredump_req - message kernel sends to userspace * @size: size of struct coredump_req * @size_ack: known size of struct coredump_ack on this kernel * @mask: supported features * * When a coredump happens the kernel will connect to the coredump * socket and send a coredump request to the coredump server. The @size * member is set to the size of struct coredump_req and provides a hint * to userspace how much data can be read. Userspace may use MSG_PEEK to * peek the size of struct coredump_req and then choose to consume it in * one go. Userspace may also simply read a COREDUMP_ACK_SIZE_VER0 * request. If the size the kernel sends is larger userspace simply * discards any remaining data. * * The coredump_req->mask member is set to the currently know features. * Userspace may only set coredump_ack->mask to the bits raised by the * kernel in coredump_req->mask. * * The coredump_req->size_ack member is set by the kernel to the size of * struct coredump_ack the kernel knows. Userspace may only send up to * coredump_req->size_ack bytes to the kernel and must set * coredump_ack->size accordingly. */struct coredump_req { __u32 size; __u32 size_ack; __u64 mask;};
enum { COREDUMP_REQ_SIZE_VER0 = 16U, /* size of first published struct */};
/** * struct coredump_ack - message userspace sends to kernel * @size: size of the struct * @spare: unused * @mask: features kernel is supposed to use * * The @size member must be set to the size of struct coredump_ack. It * may never exceed what the kernel returned in coredump_req->size_ack * but it may of course be smaller (>= COREDUMP_ACK_SIZE_VER0 and <= * coredump_req->size_ack). * * The @mask member must be set to the features the coredump server * wants the kernel to use. Only bits the kernel returned in * coredump_req->mask may be set. */struct coredump_ack { __u32 size; __u32 spare; __u64 mask;};
enum { COREDUMP_ACK_SIZE_VER0 = 16U, /* size of first published struct */};
/** * enum coredump_mark - Markers for the coredump socket * * The kernel will place a single byte on the coredump socket. The * markers notify userspace whether the coredump ack succeeded or * failed. * * @COREDUMP_MARK_MINSIZE: the provided coredump_ack size was too small * @COREDUMP_MARK_MAXSIZE: the provided coredump_ack size was too big * @COREDUMP_MARK_UNSUPPORTED: the provided coredump_ack mask was invalid * @COREDUMP_MARK_CONFLICTING: the provided coredump_ack mask has conflicting options * @COREDUMP_MARK_REQACK: the coredump request and ack was successful * @__COREDUMP_MARK_MAX: the maximum coredump mark value */enum coredump_mark { COREDUMP_MARK_REQACK = 0U, COREDUMP_MARK_MINSIZE = 1U, COREDUMP_MARK_MAXSIZE = 2U, COREDUMP_MARK_UNSUPPORTED = 3U, COREDUMP_MARK_CONFLICTING = 4U, __COREDUMP_MARK_MAX = (1U << 31),};
#endif /* _UAPI_LINUX_COREDUMP_H */