322 lines
6.3 KiB
C
322 lines
6.3 KiB
C
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/* Low level request messages are built and sent by wrapper functions.
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* This file contains the request and response structures for accessing
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* those wrappers functions.
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*/
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#include <sys/types.h>
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/* Structure for REQ_GETNODE and REQ_PUTNODE requests */
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typedef struct node_req {
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endpoint_t fs_e;
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ino_t inode_nr;
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} node_req_t;
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/* Structure for response that contains inode details */
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typedef struct node_details {
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endpoint_t fs_e;
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ino_t inode_nr;
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mode_t fmode;
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off_t fsize;
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unsigned short inode_index;
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/* For char/block special files */
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dev_t dev;
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/* Fields used by the exec() syscall */
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uid_t uid;
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gid_t gid;
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time_t ctime;
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} node_details_t;
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/* Structure for REQ_OPEN request */
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typedef struct open_req {
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endpoint_t fs_e;
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ino_t inode_nr;
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char *lastc;
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int oflags;
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mode_t omode;
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uid_t uid;
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gid_t gid;
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} open_req_t;
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/* Structure for REQ_READ and REQ_WRITE request */
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typedef struct readwrite_req {
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int rw_flag;
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endpoint_t fs_e;
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endpoint_t user_e;
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ino_t inode_nr;
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unsigned short inode_index;
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int seg;
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off_t pos;
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unsigned int num_of_bytes;
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char *user_addr;
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} readwrite_req_t;
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/* Structure for response of REQ_READ and REQ_WRITE */
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typedef struct readwrite_res {
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off_t new_pos;
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unsigned int cum_io;
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} readwrite_res_t;
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/* Structure for REQ_PIPE request */
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typedef struct pipe_req {
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int fs_e;
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uid_t uid;
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gid_t gid;
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} pipe_req_t;
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/* Structure for REQ_CLONE_OPCL request */
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typedef struct clone_opcl_req {
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int fs_e;
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dev_t dev;
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} clone_opcl_req_t;
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/* Structure for REQ_FTRUNC request */
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typedef struct ftrunc_req {
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int fs_e;
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ino_t inode_nr;
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off_t start;
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off_t end;
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} ftrunc_req_t;
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/* Structure for REQ_CHOWN request */
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typedef struct chown_req {
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int fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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uid_t newuid;
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gid_t newgid;
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} chown_req_t;
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/* Structure for REQ_CHMOD request */
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typedef struct chmod_req {
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int fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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mode_t rmode;
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} chmod_req_t;
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/* Structure for REQ_ACCESS request */
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typedef struct access_req {
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int fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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mode_t amode;
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} access_req_t;
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/* Structure for REQ_MKNOD request */
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typedef struct mknod_req {
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int fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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mode_t rmode;
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dev_t dev;
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char *lastc;
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} mknod_req_t;
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/* Structure for REQ_MKDIR request */
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typedef struct mkdir_req {
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int fs_e;
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ino_t d_inode_nr;
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uid_t uid;
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gid_t gid;
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mode_t rmode;
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char *lastc;
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} mkdir_req_t;
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/* Structure for REQ_STAT, REQ_FSTAT, REQ_FSTATFS requests */
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typedef struct stat_req {
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int fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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int who_e;
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char *buf;
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int pos;
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} stat_req_t;
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/* Structure for REQ_UNLINK request */
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typedef struct unlink_req {
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int fs_e;
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ino_t d_inode_nr;
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uid_t uid;
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gid_t gid;
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char *lastc;
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} unlink_req_t;
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/* Structure for REQ_UTIME request */
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typedef struct utime_req {
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int fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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time_t actime;
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time_t modtime;
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} utime_req_t;
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/* Structure for REQ_GETDIR request */
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typedef struct getdir_req {
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endpoint_t fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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} getdir_req_t;
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/* Structure for REQ_LINK request */
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typedef struct link_req {
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endpoint_t fs_e;
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ino_t linked_file;
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ino_t link_parent;
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uid_t uid;
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gid_t gid;
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char *lastc;
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} link_req_t;
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/* Structure for REQ_SLINK request */
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typedef struct slink_req {
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endpoint_t fs_e;
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ino_t parent_dir;
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uid_t uid;
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gid_t gid;
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char *lastc;
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endpoint_t who_e;
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char *path_addr;
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unsigned short path_length;
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} slink_req_t;
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/* Structure for REQ_RDLINK request */
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typedef struct rdlink_req {
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endpoint_t fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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endpoint_t who_e;
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char *path_buffer;
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unsigned short max_length;
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} rdlink_req_t;
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/* Structure for REQ_RENAME request */
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typedef struct rename_req {
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endpoint_t fs_e;
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ino_t old_dir;
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ino_t new_dir;
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uid_t uid;
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gid_t gid;
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char *old_name;
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char *new_name;
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} rename_req_t;
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/* Structure for REQ_MOUNTPOINT request */
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typedef struct mountpoint_req {
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endpoint_t fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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} mountpoint_req_t;
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/* Structure for REQ_READSUPER request */
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typedef struct readsuper_req {
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endpoint_t fs_e;
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time_t boottime;
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endpoint_t driver_e;
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dev_t dev;
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char *slink_storage;
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char isroot;
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char readonly;
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} readsuper_req_t;
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/* Structure for response of READSUPER request */
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typedef struct readsuper_res {
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endpoint_t fs_e;
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ino_t inode_nr;
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mode_t fmode;
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off_t fsize;
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int blocksize;
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off_t maxsize;
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} readsuper_res_t;
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/* Structure for REQ_TRUNC request */
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typedef struct trunc_req {
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endpoint_t fs_e;
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ino_t inode_nr;
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uid_t uid;
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gid_t gid;
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off_t length;
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} trunc_req_t;
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/* Structure for REQ_LOOKUP request */
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typedef struct lookup_req {
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/* Fields filled in by the caller */
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char *path;
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char *lastc;
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int flags;
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/* Fields filled in by the path name traversal method */
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endpoint_t fs_e;
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ino_t start_dir;
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ino_t root_dir; /* process' root directory */
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uid_t uid;
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gid_t gid;
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unsigned char symloop;
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} lookup_req_t;
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/* Structure for a lookup response */
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typedef struct lookup_res {
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endpoint_t fs_e;
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ino_t inode_nr;
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mode_t fmode;
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off_t fsize;
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/* For char/block special files */
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dev_t dev;
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/* Fields used for handling mount point and symbolic links */
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int char_processed;
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unsigned char symloop;
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} lookup_res_t;
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/* Structure for REQ_BREAD and REQ_BWRITE request (block spec files) */
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typedef struct breadwrite_req {
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int rw_flag;
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short blocksize;
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endpoint_t fs_e;
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endpoint_t user_e;
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endpoint_t driver_e;
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dev_t dev;
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off_t pos;
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unsigned int num_of_bytes;
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char *user_addr;
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} breadwrite_req_t;
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/* Structure for REQ_ request */
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