#ifndef _IPC_H #define _IPC_H #include #include #include #include /*==========================================================================* * Types relating to messages. * *==========================================================================*/ #define M1 1 #define M3 3 #define M4 4 #define M3_STRING 44 /* legacy m3_ca1 size (must not be changed) */ #define M3_LONG_STRING 44 /* current m3_ca1 size (may be increased) */ typedef struct { uint8_t data[56]; } mess_u8; _ASSERT_MSG_SIZE(mess_u8); typedef struct { uint16_t data[28]; } mess_u16; _ASSERT_MSG_SIZE(mess_u16); typedef struct { uint32_t data[14]; } mess_u32; _ASSERT_MSG_SIZE(mess_u32); typedef struct { uint64_t data[7]; } mess_u64; _ASSERT_MSG_SIZE(mess_u64); typedef struct { uint64_t m1ull1; int m1i1, m1i2, m1i3; char *m1p1, *m1p2, *m1p3, *m1p4; uint8_t padding[20]; } mess_1; _ASSERT_MSG_SIZE(mess_1); typedef struct { int64_t m2ll1; int m2i1, m2i2, m2i3; long m2l1, m2l2; char *m2p1; sigset_t sigset; short m2s1; uint8_t padding[6]; } mess_2; _ASSERT_MSG_SIZE(mess_2); typedef struct { int m3i1, m3i2; char *m3p1; char m3ca1[M3_LONG_STRING]; } mess_3; _ASSERT_MSG_SIZE(mess_3); typedef struct { int64_t m4ll1; long m4l1, m4l2, m4l3, m4l4, m4l5; uint8_t padding[28]; } mess_4; _ASSERT_MSG_SIZE(mess_4); typedef struct { short m5s1, m5s2; int m5i1, m5i2; long m5l1, m5l2, m5l3; uint8_t padding[32]; } mess_5; _ASSERT_MSG_SIZE(mess_5); typedef struct { int m7i1, m7i2, m7i3, m7i4, m7i5; char *m7p1, *m7p2; uint8_t padding[28]; } mess_7; _ASSERT_MSG_SIZE(mess_7); typedef struct { int m8i1, m8i2; char *m8p1, *m8p2, *m8p3, *m8p4; uint8_t padding[32]; } mess_8; _ASSERT_MSG_SIZE(mess_8); typedef struct { uint64_t m9ull1, m9ull2; long m9l1, m9l2, m9l3, m9l4, m9l5; short m9s1, m9s2, m9s3, m9s4; uint8_t padding[12]; } mess_9; _ASSERT_MSG_SIZE(mess_9); typedef struct { u64_t m10ull1; int m10i1, m10i2, m10i3, m10i4; long m10l1, m10l2, m10l3; uint8_t padding[20]; } mess_10; _ASSERT_MSG_SIZE(mess_10); typedef struct { int m11i1; short m11s1, m11s2, m11s3, m11s4; char *m11p1, *m11p2, *m11p3, *m11p4; uint8_t padding[28]; } mess_11; _ASSERT_MSG_SIZE(mess_11); typedef struct { off_t offset; void *addr; size_t len; int prot; int flags; int fd; endpoint_t forwhom; void *retaddr; u32_t padding[5]; } mess_mmap; _ASSERT_MSG_SIZE(mess_mmap); typedef struct { u64_t timestamp; /* valid for every notify msg */ u64_t interrupts; /* raised interrupts; valid if from HARDWARE */ sigset_t sigset; /* raised signals; valid if from SYSTEM */ uint8_t padding[24]; } mess_notify; _ASSERT_MSG_SIZE(mess_notify); /* For SYS_GETKSIG, _ENDKSIG, _KILL, _SIGSEND, _SIGRETURN. */ typedef struct { sigset_t map; /* used to pass signal bit map */ endpoint_t endpt; /* process number for inform */ int sig; /* signal number to send */ void *sigctx; /* pointer to signal context */ uint8_t padding[28]; } mess_sigcalls; _ASSERT_MSG_SIZE(mess_sigcalls); typedef struct { int32_t flags; size_t len; vir_bytes buf; /* struct statvfs */ uint8_t padding[44]; } mess_lc_vfs_getvfsstat; _ASSERT_MSG_SIZE(mess_lc_vfs_getvfsstat); typedef struct { uint32_t nfds; fd_set *readfds; fd_set *writefds; fd_set *errorfds; vir_bytes timeout; /* user-provided 'struct timeval *' */ uint8_t padding[36]; } mess_lc_vfs_select; _ASSERT_MSG_SIZE(mess_lc_vfs_select); typedef struct { dev_t device; off_t seek_pos; cp_grant_id_t grant; size_t nbytes; uint8_t data[32]; } mess_vfs_fs_breadwrite; _ASSERT_MSG_SIZE(mess_vfs_fs_breadwrite); typedef struct { off_t seek_pos; size_t nbytes; uint8_t data[44]; } mess_fs_vfs_breadwrite; _ASSERT_MSG_SIZE(mess_fs_vfs_breadwrite); typedef struct { ino_t inode; mode_t mode; uint8_t data[44]; } mess_vfs_fs_chmod; _ASSERT_MSG_SIZE(mess_vfs_fs_chmod); typedef struct { mode_t mode; uint8_t data[52]; } mess_fs_vfs_chmod; _ASSERT_MSG_SIZE(mess_fs_vfs_chmod); typedef struct { ino_t inode; uid_t uid; gid_t gid; uint8_t data[40]; } mess_vfs_fs_chown; _ASSERT_MSG_SIZE(mess_vfs_fs_chown); typedef struct { mode_t mode; uint8_t data[52]; } mess_fs_vfs_chown; _ASSERT_MSG_SIZE(mess_fs_vfs_chown); typedef struct { ino_t inode; mode_t mode; uid_t uid; gid_t gid; cp_grant_id_t grant; size_t path_len; uint8_t data[28]; } mess_vfs_fs_create; _ASSERT_MSG_SIZE(mess_vfs_fs_create); typedef struct { off_t file_size; ino_t inode; mode_t mode; uid_t uid; gid_t gid; uint8_t data[28]; } mess_fs_vfs_create; _ASSERT_MSG_SIZE(mess_fs_vfs_create); typedef struct { dev_t device; uint8_t data[48]; } mess_vfs_fs_flush; _ASSERT_MSG_SIZE(mess_vfs_fs_flush); typedef struct { ino_t inode; off_t trc_start; off_t trc_end; uint8_t data[32]; } mess_vfs_fs_ftrunc; _ASSERT_MSG_SIZE(mess_vfs_fs_ftrunc); typedef struct { ino_t inode; off_t seek_pos; cp_grant_id_t grant; size_t mem_size; uint8_t data[32]; } mess_vfs_fs_getdents; _ASSERT_MSG_SIZE(mess_vfs_fs_getdents); typedef struct { off_t seek_pos; size_t nbytes; uint8_t data[44]; } mess_fs_vfs_getdents; _ASSERT_MSG_SIZE(mess_fs_vfs_getdents); typedef struct { ino_t inode; uint8_t data[48]; } mess_vfs_fs_inhibread; _ASSERT_MSG_SIZE(mess_vfs_fs_inhibread); typedef struct { ino_t inode; ino_t dir_ino; cp_grant_id_t grant; size_t path_len; uint8_t data[32]; } mess_vfs_fs_link; _ASSERT_MSG_SIZE(mess_vfs_fs_link); typedef struct { ino_t dir_ino; ino_t root_ino; uint32_t flags; size_t path_len; size_t path_size; size_t ucred_size; cp_grant_id_t grant_path; cp_grant_id_t grant_ucred; uid_t uid; gid_t gid; uint8_t data[8]; } mess_vfs_fs_lookup; _ASSERT_MSG_SIZE(mess_vfs_fs_lookup); typedef struct { off_t offset; off_t file_size; dev_t device; ino_t inode; mode_t mode; uid_t uid; gid_t gid; uint16_t symloop; uint8_t data[10]; } mess_fs_vfs_lookup; _ASSERT_MSG_SIZE(mess_fs_vfs_lookup); typedef struct { ino_t inode; mode_t mode; uid_t uid; gid_t gid; cp_grant_id_t grant; size_t path_len; uint8_t data[28]; } mess_vfs_fs_mkdir; _ASSERT_MSG_SIZE(mess_vfs_fs_mkdir); typedef struct { dev_t device; ino_t inode; mode_t mode; uid_t uid; gid_t gid; cp_grant_id_t grant; size_t path_len; uint8_t data[20]; } mess_vfs_fs_mknod; _ASSERT_MSG_SIZE(mess_vfs_fs_mknod); typedef struct { ino_t inode; uint8_t data[48]; } mess_vfs_fs_mountpoint; _ASSERT_MSG_SIZE(mess_vfs_fs_mountpoint); typedef struct { dev_t device; cp_grant_id_t grant; size_t path_len; uint8_t data[40]; } mess_vfs_fs_new_driver; _ASSERT_MSG_SIZE(mess_vfs_fs_new_driver); typedef struct { dev_t device; mode_t mode; uid_t uid; gid_t gid; uint8_t data[36]; } mess_vfs_fs_newnode; _ASSERT_MSG_SIZE(mess_vfs_fs_newnode); typedef struct { off_t file_size; dev_t device; ino_t inode; mode_t mode; uid_t uid; gid_t gid; uint8_t data[20]; } mess_fs_vfs_newnode; _ASSERT_MSG_SIZE(mess_fs_vfs_newnode); typedef struct { uint64_t count; ino_t inode; uint8_t data[40]; } mess_vfs_fs_putnode; _ASSERT_MSG_SIZE(mess_vfs_fs_putnode); typedef struct { ino_t inode; cp_grant_id_t grant; size_t mem_size; uint8_t data[40]; } mess_vfs_fs_rdlink; _ASSERT_MSG_SIZE(mess_vfs_fs_rdlink); typedef struct { size_t nbytes; uint8_t data[52]; } mess_fs_vfs_rdlink; _ASSERT_MSG_SIZE(mess_fs_vfs_rdlink); typedef struct { dev_t device; uint32_t flags; size_t path_len; cp_grant_id_t grant; uint8_t data[36]; } mess_vfs_fs_readsuper; _ASSERT_MSG_SIZE(mess_vfs_fs_readsuper); typedef struct { off_t file_size; dev_t device; ino_t inode; uint32_t flags; mode_t mode; uid_t uid; gid_t gid; uint16_t con_reqs; uint8_t data[14]; } mess_fs_vfs_readsuper; _ASSERT_MSG_SIZE(mess_fs_vfs_readsuper); typedef struct { ino_t inode; off_t seek_pos; cp_grant_id_t grant; size_t nbytes; uint8_t data[32]; } mess_vfs_fs_readwrite; _ASSERT_MSG_SIZE(mess_vfs_fs_readwrite); typedef struct { off_t seek_pos; size_t nbytes; uint8_t data[44]; } mess_fs_vfs_readwrite; _ASSERT_MSG_SIZE(mess_fs_vfs_readwrite); typedef struct { ino_t dir_old; ino_t dir_new; size_t len_old; size_t len_new; cp_grant_id_t grant_old; cp_grant_id_t grant_new; uint8_t data[24]; } mess_vfs_fs_rename; _ASSERT_MSG_SIZE(mess_vfs_fs_rename); typedef struct { ino_t inode; size_t path_len; size_t mem_size; cp_grant_id_t grant_path; cp_grant_id_t grant_target; uid_t uid; gid_t gid; uint8_t data[24]; } mess_vfs_fs_slink; _ASSERT_MSG_SIZE(mess_vfs_fs_slink); typedef struct { ino_t inode; cp_grant_id_t grant; uint8_t data[44]; } mess_vfs_fs_stat; _ASSERT_MSG_SIZE(mess_vfs_fs_stat); typedef struct { cp_grant_id_t grant; uint8_t data[52]; } mess_vfs_fs_statvfs; _ASSERT_MSG_SIZE(mess_vfs_fs_statvfs); typedef struct { ino_t inode; cp_grant_id_t grant; size_t path_len; uint8_t data[40]; } mess_vfs_fs_unlink; _ASSERT_MSG_SIZE(mess_vfs_fs_unlink); typedef struct { ino_t inode; time_t actime; time_t modtime; uint32_t acnsec; uint32_t modnsec; uint8_t data[24]; } mess_vfs_fs_utime; _ASSERT_MSG_SIZE(mess_vfs_fs_utime); typedef struct { time_t atime; time_t mtime; long ansec; long mnsec; size_t len; char *name; int fd; int flags; uint8_t padding[16]; } mess_vfs_utimens; _ASSERT_MSG_SIZE(mess_vfs_utimens); typedef struct { off_t offset; dev_t dev; ino_t ino; endpoint_t who; u32_t vaddr; u32_t len; u32_t flags; u32_t fd; u16_t clearend; uint8_t padding[8]; } mess_vm_vfs_mmap; _ASSERT_MSG_SIZE(mess_vm_vfs_mmap); typedef struct { dev_t dev; /* 64bits long. */ off_t dev_offset; off_t ino_offset; ino_t ino; void *block; u32_t *flags_ptr; u8_t pages; u8_t flags; uint8_t padding[12]; } mess_vmmcp; _ASSERT_MSG_SIZE(mess_vmmcp); typedef struct { void *addr; u8_t flags; uint8_t padding[51]; } mess_vmmcp_reply; _ASSERT_MSG_SIZE(mess_vmmcp_reply); typedef struct { endpoint_t m_source; /* who sent the message */ int m_type; /* what kind of message is it */ union { mess_u8 m_u8; mess_u16 m_u16; mess_u32 m_u32; mess_u64 m_u64; mess_1 m_m1; mess_2 m_m2; mess_3 m_m3; mess_4 m_m4; mess_5 m_m5; mess_7 m_m7; mess_8 m_m8; mess_9 m_m9; mess_10 m_m10; mess_11 m_m11; mess_mmap m_mmap; mess_notify m_notify; mess_sigcalls m_sigcalls; mess_fs_vfs_breadwrite m_fs_vfs_breadwrite; mess_fs_vfs_chmod m_fs_vfs_chmod; mess_fs_vfs_chown m_fs_vfs_chown; mess_fs_vfs_create m_fs_vfs_create; mess_fs_vfs_getdents m_fs_vfs_getdents; mess_fs_vfs_lookup m_fs_vfs_lookup; mess_fs_vfs_newnode m_fs_vfs_newnode; mess_fs_vfs_rdlink m_fs_vfs_rdlink; mess_fs_vfs_readsuper m_fs_vfs_readsuper; mess_fs_vfs_readwrite m_fs_vfs_readwrite; mess_lc_vfs_getvfsstat m_lc_vfs_getvfsstat; mess_lc_vfs_select m_lc_vfs_select; mess_vfs_fs_breadwrite m_vfs_fs_breadwrite; mess_vfs_fs_chmod m_vfs_fs_chmod; mess_vfs_fs_chown m_vfs_fs_chown; mess_vfs_fs_create m_vfs_fs_create; mess_vfs_fs_flush m_vfs_fs_flush; mess_vfs_fs_ftrunc m_vfs_fs_ftrunc; mess_vfs_fs_getdents m_vfs_fs_getdents; mess_vfs_fs_inhibread m_vfs_fs_inhibread; mess_vfs_fs_link m_vfs_fs_link; mess_vfs_fs_lookup m_vfs_fs_lookup; mess_vfs_fs_mkdir m_vfs_fs_mkdir; mess_vfs_fs_mknod m_vfs_fs_mknod; mess_vfs_fs_mountpoint m_vfs_fs_mountpoint; mess_vfs_fs_newnode m_vfs_fs_newnode; mess_vfs_fs_new_driver m_vfs_fs_new_driver; mess_vfs_fs_putnode m_vfs_fs_putnode; mess_vfs_fs_rdlink m_vfs_fs_rdlink; mess_vfs_fs_readsuper m_vfs_fs_readsuper; mess_vfs_fs_rename m_vfs_fs_rename; mess_vfs_fs_readwrite m_vfs_fs_readwrite; mess_vfs_fs_slink m_vfs_fs_slink; mess_vfs_fs_stat m_vfs_fs_stat; mess_vfs_fs_statvfs m_vfs_fs_statvfs; mess_vfs_fs_unlink m_vfs_fs_unlink; mess_vfs_fs_utime m_vfs_fs_utime; mess_vfs_utimens m_vfs_utimens; mess_vm_vfs_mmap m_vm_vfs_mmap; mess_vmmcp m_vmmcp; mess_vmmcp_reply m_vmmcp_reply; u8_t size[56]; /* message payload may have 56 bytes at most */ }; } message __aligned(16); /* Ensure the complete union respects the IPC assumptions. */ typedef int _ASSERT_message[/* CONSTCOND */sizeof(message) == 64 ? 1 : -1]; /* The following defines provide names for useful members. */ #define m1_i1 m_m1.m1i1 #define m1_i2 m_m1.m1i2 #define m1_i3 m_m1.m1i3 #define m1_p1 m_m1.m1p1 #define m1_p2 m_m1.m1p2 #define m1_p3 m_m1.m1p3 #define m1_p4 m_m1.m1p4 #define m1_ull1 m_m1.m1ull1 #define m2_ll1 m_m2.m2ll1 #define m2_i1 m_m2.m2i1 #define m2_i2 m_m2.m2i2 #define m2_i3 m_m2.m2i3 #define m2_l1 m_m2.m2l1 #define m2_l2 m_m2.m2l2 #define m2_p1 m_m2.m2p1 #define m2_sigset m_m2.sigset #define m2_s1 m_m2.m2s1 #define m3_i1 m_m3.m3i1 #define m3_i2 m_m3.m3i2 #define m3_p1 m_m3.m3p1 #define m3_ca1 m_m3.m3ca1 #define m4_ll1 m_m4.m4ll1 #define m4_l1 m_m4.m4l1 #define m4_l2 m_m4.m4l2 #define m4_l3 m_m4.m4l3 #define m4_l4 m_m4.m4l4 #define m4_l5 m_m4.m4l5 #define m5_s1 m_m5.m5s1 #define m5_s2 m_m5.m5s2 #define m5_i1 m_m5.m5i1 #define m5_i2 m_m5.m5i2 #define m5_l1 m_m5.m5l1 #define m5_l2 m_m5.m5l2 #define m5_l3 m_m5.m5l3 #define m7_i1 m_m7.m7i1 #define m7_i2 m_m7.m7i2 #define m7_i3 m_m7.m7i3 #define m7_i4 m_m7.m7i4 #define m7_i5 m_m7.m7i5 #define m7_p1 m_m7.m7p1 #define m7_p2 m_m7.m7p2 #define m8_i1 m_m8.m8i1 #define m8_i2 m_m8.m8i2 #define m8_p1 m_m8.m8p1 #define m8_p2 m_m8.m8p2 #define m8_p3 m_m8.m8p3 #define m8_p4 m_m8.m8p4 #define m9_l1 m_m9.m9l1 #define m9_l2 m_m9.m9l2 #define m9_l3 m_m9.m9l3 #define m9_l4 m_m9.m9l4 #define m9_l5 m_m9.m9l5 #define m9_s1 m_m9.m9s1 #define m9_s2 m_m9.m9s2 #define m9_s3 m_m9.m9s3 #define m9_s4 m_m9.m9s4 #define m9_ull1 m_m9.m9ull1 #define m9_ull2 m_m9.m9ull2 #define m10_i1 m_m10.m10i1 #define m10_i2 m_m10.m10i2 #define m10_i3 m_m10.m10i3 #define m10_i4 m_m10.m10i4 #define m10_l1 m_m10.m10l1 #define m10_l2 m_m10.m10l2 #define m10_l3 m_m10.m10l3 #define m10_ull1 m_m10.m10ull1 #define m11_i1 m_m11.m11i1 #define m11_s1 m_m11.m11s1 #define m11_s2 m_m11.m11s2 #define m11_s3 m_m11.m11s3 #define m11_s4 m_m11.m11s4 #define m11_p1 m_m11.m11p1 #define m11_p2 m_m11.m11p2 #define m11_p3 m_m11.m11p3 #define m11_p4 m_m11.m11p4 /*==========================================================================* * Minix run-time system (IPC). * *==========================================================================*/ /* Datastructure for asynchronous sends */ typedef struct asynmsg { unsigned flags; endpoint_t dst; int result; message msg; } asynmsg_t; /* Defines for flags field */ #define AMF_EMPTY 000 /* slot is not inuse */ #define AMF_VALID 001 /* slot contains message */ #define AMF_DONE 002 /* Kernel has processed the message. The * result is stored in 'result' */ #define AMF_NOTIFY 004 /* Send a notification when AMF_DONE is set */ #define AMF_NOREPLY 010 /* Not a reply message for a SENDREC */ #define AMF_NOTIFY_ERR 020 /* Send a notification when AMF_DONE is set and * delivery of the message failed */ int _ipc_send_intr(endpoint_t dest, message *m_ptr); int _ipc_receive_intr(endpoint_t src, message *m_ptr, int *status_ptr); int _ipc_sendrec_intr(endpoint_t src_dest, message *m_ptr); int _ipc_sendnb_intr(endpoint_t dest, message *m_ptr); int _ipc_notify_intr(endpoint_t dest); int _ipc_senda_intr(asynmsg_t *table, size_t count); int _do_kernel_call_intr(message *m_ptr); int get_minix_kerninfo(struct minix_kerninfo **); /* Hide names to avoid name space pollution. */ #define ipc_notify _ipc_notify #define ipc_sendrec _ipc_sendrec #define ipc_receive _ipc_receive #define ipc_receivenb _ipc_receivenb #define ipc_send _ipc_send #define ipc_sendnb _ipc_sendnb #define ipc_senda _ipc_senda #define do_kernel_call _do_kernel_call struct minix_ipcvecs { int (*send)(endpoint_t dest, message *m_ptr); int (*receive)(endpoint_t src, message *m_ptr, int *st); int (*sendrec)(endpoint_t src_dest, message *m_ptr); int (*sendnb)(endpoint_t dest, message *m_ptr); int (*notify)(endpoint_t dest); int (*do_kernel_call)(message *m_ptr); int (*senda)(asynmsg_t *table, size_t count); }; /* kernel-set IPC vectors retrieved by a constructor in libc/sys-minix/init.c */ extern struct minix_ipcvecs _minix_ipcvecs; static inline int _ipc_send(endpoint_t dest, message *m_ptr) { return _minix_ipcvecs.send(dest, m_ptr); } static inline int _ipc_receive(endpoint_t src, message *m_ptr, int *st) { return _minix_ipcvecs.receive(src, m_ptr, st); } static inline int _ipc_sendrec(endpoint_t src_dest, message *m_ptr) { return _minix_ipcvecs.sendrec(src_dest, m_ptr); } static inline int _ipc_sendnb(endpoint_t dest, message *m_ptr) { return _minix_ipcvecs.sendnb(dest, m_ptr); } static inline int _ipc_notify(endpoint_t dest) { return _minix_ipcvecs.notify(dest); } static inline int _do_kernel_call(message *m_ptr) { return _minix_ipcvecs.do_kernel_call(m_ptr); } static inline int _ipc_senda(asynmsg_t *table, size_t count) { return _minix_ipcvecs.senda(table, count); } #endif /* _IPC_H */