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| author | Luca Dariz <luca@orpolo.org> | 2023-01-16 11:58:51 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-01-18 02:11:34 +0100 |
| commit | cc05ed085b731232a2436efcaf03aa1e92ad20be (patch) | |
| tree | 1bfaf6bc8d7db296eeac477206dcb2c186c25e49 /include | |
| parent | c17cb87cc97f817f9705ef932fe2da6d23a1d01a (diff) | |
| download | gnumach-cc05ed085b731232a2436efcaf03aa1e92ad20be.tar.gz gnumach-cc05ed085b731232a2436efcaf03aa1e92ad20be.tar.bz2 gnumach-cc05ed085b731232a2436efcaf03aa1e92ad20be.zip | |
add msg_user_header_t for user-side msg structure
* include/mach/message.h: use mach_msg_user_header_t only in KERNEL,
and define it as mach_msh_header_t for user space
* ipc/ipc_kmsg.c: use mach_msg_user_header_t where appropriate
* ipc/ipc_kmsg.h: Likewise
* ipc/mach_msg.c: Likewise
* ipc/mach_msg.h: Likewise
* kern/thread.h: Likewise
Message-Id: <20230116105857.240210-2-luca@orpolo.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/mach/message.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/mach/message.h b/include/mach/message.h index 798b47b4..c3081e66 100644 --- a/include/mach/message.h +++ b/include/mach/message.h @@ -132,6 +132,7 @@ typedef unsigned int mach_msg_size_t; typedef natural_t mach_msg_seqno_t; typedef integer_t mach_msg_id_t; +/* full header structure, may have different size in user/kernel spaces */ typedef struct mach_msg_header { mach_msg_bits_t msgh_bits; mach_msg_size_t msgh_size; @@ -144,6 +145,20 @@ typedef struct mach_msg_header { mach_msg_id_t msgh_id; } mach_msg_header_t; +#ifdef KERNEL +/* user-side header format, needed in the kernel */ +typedef struct { + mach_msg_bits_t msgh_bits; + mach_msg_size_t msgh_size; + mach_port_name_t msgh_remote_port; + mach_port_name_t msgh_local_port; + mach_port_seqno_t msgh_seqno; + mach_msg_id_t msgh_id; +} mach_msg_user_header_t; +#else +typedef mach_msg_header_t mach_msg_user_header_t; +#endif + /* * There is no fixed upper bound to the size of Mach messages. */ @@ -389,7 +404,7 @@ typedef kern_return_t mach_msg_return_t; extern mach_msg_return_t mach_msg_trap - (mach_msg_header_t *msg, + (mach_msg_user_header_t *msg, mach_msg_option_t option, mach_msg_size_t send_size, mach_msg_size_t rcv_size, |