/* * Get the file's change indicator */ int get_dmchange( dm_sessid_t sid, void *hanp, size_t hlen, dm_token_t token, u_int *change_start) { int error; dm_stat_t statbuf; error = dm_get_fileattr(sid, hanp, hlen, token, DM_AT_CFLAG, &statbuf); if (error == -1) { errno_msg("%s/%d: Can't stat file (%d)", __FILE__, __LINE__, errno); return(1); } *change_start = statbuf.dt_change; return(0); }
static int dmapi_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { sys_dmapi_args_t kargs; sys_dmapi_args_t *uap = &kargs; int error = 0; int rvp = -ENOSYS; int use_rvp = 0; if (!capable(CAP_MKNOD)) return(-EPERM); if( copy_from_user( &kargs, (sys_dmapi_args_t*)arg, sizeof(sys_dmapi_args_t) ) ) return -EFAULT; switch (cmd) { case DM_CLEAR_INHERIT: error = dm_clear_inherit( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_attrname_t *) uap->arg5); /* attrnamep */ break; case DM_CREATE_BY_HANDLE: error = dm_create_by_handle( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* dirhanp */ (size_t) uap->arg3, /* dirhlen */ (dm_token_t) uap->arg4, /* token */ (void *) uap->arg5, /* hanp */ (size_t) uap->arg6, /* hlen */ (char *) uap->arg7); /* cname */ break; case DM_CREATE_SESSION: error = dm_create_session( (dm_sessid_t) uap->arg1, /* oldsid */ (char *) uap->arg2, /* sessinfop */ (dm_sessid_t *) uap->arg3); /* newsidp */ break; case DM_CREATE_USEREVENT: error = dm_create_userevent( (dm_sessid_t) uap->arg1, /* sid */ (size_t) uap->arg2, /* msglen */ (void *) uap->arg3, /* msgdatap */ (dm_token_t *) uap->arg4); /* tokenp */ break; case DM_DESTROY_SESSION: error = dm_destroy_session( (dm_sessid_t) uap->arg1); /* sid */ break; case DM_DOWNGRADE_RIGHT: error = dm_downgrade_right( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4); /* token */ break; case DM_FD_TO_HANDLE: error = dm_fd_to_hdl( (int) uap->arg1, /* fd */ (void *) uap->arg2, /* hanp */ (size_t *) uap->arg3); /* hlenp */ break; case DM_FIND_EVENTMSG: error = dm_find_eventmsg( (dm_sessid_t) uap->arg1, /* sid */ (dm_token_t) uap->arg2, /* token */ (size_t) uap->arg3, /* buflen */ (void *) uap->arg4, /* bufp */ (size_t *) uap->arg5); /* rlenp */ break; case DM_GET_ALLOCINFO: use_rvp = 1; error = dm_get_allocinfo_rvp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_off_t *) uap->arg5, /* offp */ (u_int) uap->arg6, /* nelem */ (dm_extent_t *) uap->arg7, /* extentp */ (u_int *) uap->arg8, /* nelemp */ &rvp); break; case DM_GET_BULKALL: use_rvp = 1; error = dm_get_bulkall_rvp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* mask */ (dm_attrname_t *) uap->arg6, /* attrnamep */ (dm_attrloc_t *) uap->arg7, /* locp */ (size_t) uap->arg8, /* buflen */ (void *) uap->arg9, /* bufp */ (size_t *) uap->arg10, /* rlenp */ &rvp); break; case DM_GET_BULKATTR: use_rvp = 1; error = dm_get_bulkattr_rvp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* mask */ (dm_attrloc_t *)uap->arg6, /* locp */ (size_t) uap->arg7, /* buflen */ (void *) uap->arg8, /* bufp */ (size_t *) uap->arg9, /* rlenp */ &rvp); break; case DM_GET_CONFIG: error = dm_get_config( (void *) uap->arg1, /* hanp */ (size_t) uap->arg2, /* hlen */ (dm_config_t) uap->arg3, /* flagname */ (dm_size_t *) uap->arg4); /* retvalp */ break; case DM_GET_CONFIG_EVENTS: error = dm_get_config_events( (void *) uap->arg1, /* hanp */ (size_t) uap->arg2, /* hlen */ (u_int) uap->arg3, /* nelem */ (dm_eventset_t *) uap->arg4, /* eventsetp */ (u_int *) uap->arg5); /* nelemp */ break; case DM_GET_DIOINFO: error = dm_get_dioinfo( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_dioinfo_t *)uap->arg5); /* diop */ break; case DM_GET_DIRATTRS: use_rvp = 1; error = dm_get_dirattrs_rvp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* mask */ (dm_attrloc_t *)uap->arg6, /* locp */ (size_t) uap->arg7, /* buflen */ (void *) uap->arg8, /* bufp */ (size_t *) uap->arg9, /* rlenp */ &rvp); break; case DM_GET_DMATTR: error = dm_get_dmattr( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_attrname_t *) uap->arg5, /* attrnamep */ (size_t) uap->arg6, /* buflen */ (void *) uap->arg7, /* bufp */ (size_t *) uap->arg8); /* rlenp */ break; case DM_GET_EVENTLIST: error = dm_get_eventlist( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* nelem */ (dm_eventset_t *) uap->arg6, /* eventsetp */ (u_int *) uap->arg7); /* nelemp */ break; case DM_GET_EVENTS: error = dm_get_events( (dm_sessid_t) uap->arg1, /* sid */ (u_int) uap->arg2, /* maxmsgs */ (u_int) uap->arg3, /* flags */ (size_t) uap->arg4, /* buflen */ (void *) uap->arg5, /* bufp */ (size_t *) uap->arg6); /* rlenp */ break; case DM_GET_FILEATTR: error = dm_get_fileattr( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* mask */ (dm_stat_t *) uap->arg6); /* statp */ break; case DM_GET_MOUNTINFO: error = dm_get_mountinfo( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (size_t) uap->arg5, /* buflen */ (void *) uap->arg6, /* bufp */ (size_t *) uap->arg7); /* rlenp */ break; case DM_GET_REGION: error = dm_get_region( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* nelem */ (dm_region_t *) uap->arg6, /* regbufp */ (u_int *) uap->arg7); /* nelemp */ break; case DM_GETALL_DISP: error = dm_getall_disp( (dm_sessid_t) uap->arg1, /* sid */ (size_t) uap->arg2, /* buflen */ (void *) uap->arg3, /* bufp */ (size_t *) uap->arg4); /* rlenp */ break; case DM_GETALL_DMATTR: error = dm_getall_dmattr( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (size_t) uap->arg5, /* buflen */ (void *) uap->arg6, /* bufp */ (size_t *) uap->arg7); /* rlenp */ break; case DM_GETALL_INHERIT: error = dm_getall_inherit( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* nelem */ (dm_inherit_t *)uap->arg6, /* inheritbufp*/ (u_int *) uap->arg7); /* nelemp */ break; case DM_GETALL_SESSIONS: error = dm_getall_sessions( (u_int) uap->arg1, /* nelem */ (dm_sessid_t *) uap->arg2, /* sidbufp */ (u_int *) uap->arg3); /* nelemp */ break; case DM_GETALL_TOKENS: error = dm_getall_tokens( (dm_sessid_t) uap->arg1, /* sid */ (u_int) uap->arg2, /* nelem */ (dm_token_t *) uap->arg3, /* tokenbufp */ (u_int *) uap->arg4); /* nelemp */ break; case DM_INIT_ATTRLOC: error = dm_init_attrloc( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_attrloc_t *) uap->arg5); /* locp */ break; case DM_MKDIR_BY_HANDLE: error = dm_mkdir_by_handle( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* dirhanp */ (size_t) uap->arg3, /* dirhlen */ (dm_token_t) uap->arg4, /* token */ (void *) uap->arg5, /* hanp */ (size_t) uap->arg6, /* hlen */ (char *) uap->arg7); /* cname */ break; case DM_MOVE_EVENT: error = dm_move_event( (dm_sessid_t) uap->arg1, /* srcsid */ (dm_token_t) uap->arg2, /* token */ (dm_sessid_t) uap->arg3, /* targetsid */ (dm_token_t *) uap->arg4); /* rtokenp */ break; case DM_OBJ_REF_HOLD: error = dm_obj_ref_hold( (dm_sessid_t) uap->arg1, /* sid */ (dm_token_t) uap->arg2, /* token */ (void *) uap->arg3, /* hanp */ (size_t) uap->arg4); /* hlen */ break; case DM_OBJ_REF_QUERY: use_rvp = 1; error = dm_obj_ref_query_rvp( (dm_sessid_t) uap->arg1, /* sid */ (dm_token_t) uap->arg2, /* token */ (void *) uap->arg3, /* hanp */ (size_t) uap->arg4, /* hlen */ &rvp); break; case DM_OBJ_REF_RELE: error = dm_obj_ref_rele( (dm_sessid_t) uap->arg1, /* sid */ (dm_token_t) uap->arg2, /* token */ (void *) uap->arg3, /* hanp */ (size_t) uap->arg4); /* hlen */ break; case DM_PATH_TO_FSHANDLE: error = dm_path_to_fshdl( (char *) uap->arg1, /* path */ (void *) uap->arg2, /* hanp */ (size_t *) uap->arg3); /* hlenp */ break; case DM_PATH_TO_HANDLE: error = dm_path_to_hdl( (char *) uap->arg1, /* path */ (void *) uap->arg2, /* hanp */ (size_t *) uap->arg3); /* hlenp */ break; case DM_PENDING: error = dm_pending( (dm_sessid_t) uap->arg1, /* sid */ (dm_token_t) uap->arg2, /* token */ (dm_timestruct_t *) uap->arg3); /* delay */ break; case DM_PROBE_HOLE: error = dm_probe_hole( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_off_t) uap->arg5, /* off */ (dm_size_t) uap->arg6, /* len */ (dm_off_t *) uap->arg7, /* roffp */ (dm_size_t *) uap->arg8); /* rlenp */ break; case DM_PUNCH_HOLE: error = dm_punch_hole( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_off_t) uap->arg5, /* off */ (dm_size_t) uap->arg6); /* len */ break; case DM_QUERY_RIGHT: error = dm_query_right( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_right_t *) uap->arg5); /* rightp */ break; case DM_QUERY_SESSION: error = dm_query_session( (dm_sessid_t) uap->arg1, /* sid */ (size_t) uap->arg2, /* buflen */ (void *) uap->arg3, /* bufp */ (size_t *) uap->arg4); /* rlenp */ break; case DM_READ_INVIS: use_rvp = 1; error = dm_read_invis_rvp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_off_t) uap->arg5, /* off */ (dm_size_t) uap->arg6, /* len */ (void *) uap->arg7, /* bufp */ &rvp); break; case DM_RELEASE_RIGHT: error = dm_release_right( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4); /* token */ break; case DM_REMOVE_DMATTR: error = dm_remove_dmattr( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (int) uap->arg5, /* setdtime */ (dm_attrname_t *) uap->arg6); /* attrnamep */ break; case DM_REQUEST_RIGHT: error = dm_request_right( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* flags */ (dm_right_t) uap->arg6); /* right */ break; case DM_RESPOND_EVENT: error = dm_respond_event( (dm_sessid_t) uap->arg1, /* sid */ (dm_token_t) uap->arg2, /* token */ (dm_response_t) uap->arg3, /* response */ (int) uap->arg4, /* reterror */ (size_t) uap->arg5, /* buflen */ (void *) uap->arg6); /* respbufp */ break; case DM_SEND_MSG: error = dm_send_msg( (dm_sessid_t) uap->arg1, /* targetsid */ (dm_msgtype_t) uap->arg2, /* msgtype */ (size_t) uap->arg3, /* buflen */ (void *) uap->arg4); /* bufp */ break; case DM_SET_DISP: error = dm_set_disp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_eventset_t *) uap->arg5, /* eventsetp */ (u_int) uap->arg6); /* maxevent */ break; case DM_SET_DMATTR: error = dm_set_dmattr( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_attrname_t *) uap->arg5, /* attrnamep */ (int) uap->arg6, /* setdtime */ (size_t) uap->arg7, /* buflen */ (void *) uap->arg8); /* bufp */ break; case DM_SET_EVENTLIST: error = dm_set_eventlist( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_eventset_t *) uap->arg5, /* eventsetp */ (u_int) uap->arg6); /* maxevent */ break; case DM_SET_FILEATTR: error = dm_set_fileattr( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* mask */ (dm_fileattr_t *)uap->arg6); /* attrp */ break; case DM_SET_INHERIT: error = dm_set_inherit( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_attrname_t *)uap->arg5, /* attrnamep */ (mode_t) uap->arg6); /* mode */ break; case DM_SET_REGION: error = dm_set_region( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (u_int) uap->arg5, /* nelem */ (dm_region_t *) uap->arg6, /* regbufp */ (dm_boolean_t *) uap->arg7); /* exactflagp */ break; case DM_SET_RETURN_ON_DESTROY: error = dm_set_return_on_destroy( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (dm_attrname_t *) uap->arg5, /* attrnamep */ (dm_boolean_t) uap->arg6); /* enable */ break; case DM_SYMLINK_BY_HANDLE: error = dm_symlink_by_handle( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* dirhanp */ (size_t) uap->arg3, /* dirhlen */ (dm_token_t) uap->arg4, /* token */ (void *) uap->arg5, /* hanp */ (size_t) uap->arg6, /* hlen */ (char *) uap->arg7, /* cname */ (char *) uap->arg8); /* path */ break; case DM_SYNC_BY_HANDLE: error = dm_sync_by_handle( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4); /* token */ break; case DM_UPGRADE_RIGHT: error = dm_upgrade_right( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4); /* token */ break; case DM_WRITE_INVIS: use_rvp = 1; error = dm_write_invis_rvp( (dm_sessid_t) uap->arg1, /* sid */ (void *) uap->arg2, /* hanp */ (size_t) uap->arg3, /* hlen */ (dm_token_t) uap->arg4, /* token */ (int) uap->arg5, /* flags */ (dm_off_t) uap->arg6, /* off */ (dm_size_t) uap->arg7, /* len */ (void *) uap->arg8, /* bufp */ &rvp); break; default: error = ENOSYS; break; } /* If it was an *_rvp() function, then if error==0, return |rvp| */ if( use_rvp && (error == 0) ) return rvp; else return -error; }
int main( int argc, char **argv) { dm_sessid_t sid = DM_NO_SESSION; dm_token_t token = DM_NO_TOKEN; #if 0 char buffer[500]; #endif void *hanp; size_t hlen; dm_stat_t dmstat; char *pathname_obj; int a_flag = 0; char *name; int opt; int validate = 0; Progname = strrchr(argv[0], '/'); if (Progname) { Progname++; } else { Progname = argv[0]; } opterr = 0; while ((opt = getopt(argc, argv, "Aas:t:v")) != EOF) { switch (opt) { case 'A': a_flag = 2; break; case 'a': a_flag = 1; break; case 's': sid = atol(optarg); break; case 't': token = atol(optarg); break; case 'v': validate = 1; break; case '?': usage(); } } if (optind + 1 != argc) { usage(); } pathname_obj = argv[optind]; if (dm_init_service(&name) == -1) { fprintf(stderr, "Can't initialize the DMAPI\n"); exit(1); } if (sid == DM_NO_SESSION) find_test_session(&sid); /* Get the file's handle or convert the external handle. */ if (opaque_to_handle(pathname_obj, &hanp, &hlen)) { fprintf(stderr, "can't get handle for %s\n", pathname_obj); exit(1); } if (!a_flag) { fprintf(stdout, "path/handle %s\n", pathname_obj); /* Get the file's state, print it, then verify it against what is in the file's stat block. */ if (dm_get_fileattr(sid, hanp, hlen, token, DM_AT_EMASK|DM_AT_PMANR|DM_AT_PATTR|DM_AT_DTIME|DM_AT_CFLAG|DM_AT_STAT, &dmstat)) { fprintf(stderr, "dm_get_fileattr failed, %s\n", strerror(errno)); exit(1); } print_state(&dmstat); if(validate) (void)validate_state(&dmstat, pathname_obj, 1); #if 0 } else { if ((rc = filesys_bulkscan_init(pathname, &scanp)) != 0) { fprintf(stderr, "filesys_bulkscan failed, %s\n", fileio_err_image(rc)); exit(1); } for (;;) { rc = filesys_bulkscan_read(scanp, &fhandle, &fullstat); if (rc != FILEIO_NOERROR) break; (void)fhandle_to_buffer(&fhandle, buffer, sizeof(buffer)); if (a_flag == 1) { fprintf(stdout, "handle %s\n", buffer); print_state(&fullstat); fprintf(stdout, "--------------------------\n"); } else { fprintf(stdout, "%s|", buffer); print_line(&fullstat); } } if (rc != FILEIO_ENDOFSCAN) { fprintf(stderr, "filesys_bulkscan_read failed, %s\n", fileio_err_image(rc)); exit(1); } if ((rc = filesys_bulkscan_close(&scanp)) != 0) { fprintf(stderr, "filesys_bulkscan_close failed, %s\n", fileio_err_image(rc)); exit(1); } #endif } exit(0); }
int main( int argc, char **argv) { dm_sessid_t sid, oldsid, targetsid, *newsidp, *sidbufp; dm_token_t token, *tokenp, *rtokenp, *tokenbufp; dm_attrname_t *attrnamep; dm_off_t off, *offp, *roffp; dm_extent_t *extentp; dm_inherit_t *inheritbufp; dm_stat_t *statp; dm_size_t len, *dmrlenp, *retvalp; dm_attrloc_t *locp; dm_eventset_t *eventsetp; dm_config_t flagname; dm_region_t *regbufp; dm_response_t response; dm_right_t right, *rightp; dm_igen_t igen, *igenp; dm_msgtype_t msgtype; dm_fileattr_t *attrp; dm_boolean_t enable, *exactflagp; dm_timestruct_t *delay; mode_t mode; size_t hlen, dirhlen, hlen1, hlen2, targhlen, *fshlenp, *hlenp; size_t msglen, buflen, *rlenp; u_int nelem, mask, maxmsgs, uflags, *nelemp, maxevent; void *hanp, *dirhanp, *hanp1, *hanp2, *targhanp; void *msgdatap, *bufp, **hanpp, *respbufp, **fshanpp; dm_fsid_t fsid, *fsidp; dm_ino_t ino, *inop; char *cname, *sessinfop, *path, *pathbufp, **versionstrpp; int flags, fd, setdtime, reterror; u_int urc; int rc; dm_ssize_t ssrc; /* Definitions per the prototypes in dmport.h, in the same order. */ rc = dm_clear_inherit(sid, hanp, hlen, token, attrnamep); rc = dm_create_by_handle(sid, dirhanp, dirhlen, token, hanp, hlen, cname); rc = dm_create_session(oldsid, sessinfop, newsidp); rc = dm_create_userevent(sid, msglen, msgdatap, tokenp); rc = dm_destroy_session(sid); rc = dm_downgrade_right(sid, hanp, hlen, token); rc = dm_fd_to_handle(fd, hanpp, hlenp); rc = dm_find_eventmsg(sid, token, buflen, bufp, rlenp); rc = dm_get_allocinfo(sid, hanp, hlen, token, offp, nelem, extentp, nelemp); rc = dm_get_bulkall(sid, hanp, hlen, token, mask, attrnamep, locp, buflen, bufp, rlenp); rc = dm_get_bulkattr(sid, hanp, hlen, token, mask, locp, buflen, bufp, rlenp); rc = dm_get_config(hanp, hlen, flagname, retvalp); rc = dm_get_config_events(hanp, hlen, nelem, eventsetp, nelemp); rc = dm_get_dirattrs(sid, hanp, hlen, token, mask, locp, buflen, bufp, rlenp); rc = dm_get_dmattr(sid, hanp, hlen, token, attrnamep, buflen, bufp, rlenp); rc = dm_get_eventlist(sid, hanp, hlen, token, nelem, eventsetp, nelemp); rc = dm_get_events(sid, maxmsgs, flags, buflen, bufp, rlenp); rc = dm_get_fileattr(sid, hanp, hlen, token, mask, statp); rc = dm_get_mountinfo(sid, hanp, hlen, token, buflen, bufp, rlenp); rc = dm_get_region(sid, hanp, hlen, token, nelem, regbufp, nelemp); rc = dm_getall_disp(sid, buflen, bufp, rlenp); rc = dm_getall_dmattr(sid, hanp, hlen, token, buflen, bufp, rlenp); rc = dm_getall_inherit(sid, hanp, hlen, token, nelem, inheritbufp, nelemp); rc = dm_getall_sessions(nelem, sidbufp, nelemp); rc = dm_getall_tokens(sid, nelem, tokenbufp, nelemp); rc = dm_handle_cmp(hanp1, hlen1, hanp2, hlen2); dm_handle_free(hanp, hlen); urc = dm_handle_hash(hanp, hlen); rc = dm_handle_is_valid(hanp, hlen); rc = dm_handle_to_fshandle(hanp, hlen, fshanpp, fshlenp); rc = dm_handle_to_fsid(hanp, hlen, fsidp); rc = dm_handle_to_igen(hanp, hlen, igenp); rc = dm_handle_to_ino(hanp, hlen, inop); rc = dm_handle_to_path(dirhanp, dirhlen, targhanp, targhlen, buflen, pathbufp, rlenp); rc = dm_init_attrloc(sid, hanp, hlen, token, locp); rc = dm_init_service(versionstrpp); rc = dm_make_handle(&fsid, &ino, &igen, hanpp, hlenp); rc = dm_make_fshandle(&fsid, hanpp, hlenp); rc = dm_mkdir_by_handle(sid, dirhanp, dirhlen, token, hanp, hlen, cname); rc = dm_move_event(sid, token, targetsid, rtokenp); rc = dm_obj_ref_hold(sid, token, hanp, hlen); rc = dm_obj_ref_query(sid, token, hanp, hlen); rc = dm_obj_ref_rele(sid, token, hanp, hlen); rc = dm_path_to_fshandle(path, hanpp, hlenp); rc = dm_path_to_handle(path, hanpp, hlenp); rc = dm_pending(sid, token, delay); rc = dm_probe_hole(sid, hanp, hlen, token, off, len, roffp, dmrlenp); rc = dm_punch_hole(sid, hanp, hlen, token, off, len); rc = dm_query_right(sid, hanp, hlen, token, rightp); rc = dm_query_session(sid, buflen, bufp, rlenp); ssrc = dm_read_invis(sid, hanp, hlen, token, off, len, bufp); rc = dm_release_right(sid, hanp, hlen, token); rc = dm_remove_dmattr(sid, hanp, hlen, token, setdtime, attrnamep); rc = dm_request_right(sid, hanp, hlen, token, uflags, right); rc = dm_respond_event(sid, token, response, reterror, buflen, respbufp); rc = dm_send_msg(sid, msgtype, buflen, bufp); rc = dm_set_disp(sid, hanp, hlen, token, eventsetp, maxevent); rc = dm_set_dmattr(sid, hanp, hlen, token, attrnamep, setdtime, buflen, bufp); rc = dm_set_eventlist(sid, hanp, hlen, token, eventsetp, maxevent); rc = dm_set_fileattr(sid, hanp, hlen, token, mask, attrp); rc = dm_set_inherit(sid, hanp, hlen, token, attrnamep, mode); rc = dm_set_region(sid, hanp, hlen, token, nelem, regbufp, exactflagp); rc = dm_set_return_on_destroy(sid, hanp, hlen, token, attrnamep, enable); rc = dm_symlink_by_handle(sid, dirhanp, dirhlen, token, hanp, hlen, cname, path); rc = dm_sync_by_handle(sid, hanp, hlen, token); rc = dm_upgrade_right(sid, hanp, hlen, token); ssrc = dm_write_invis(sid, hanp, hlen, flags, token, off, len, bufp); exit(0); }
// for a child and manage the supplied event void spawn_child(dm_token_t token, void *hanp, size_t hlen, char *action) { pid_t mypid; pid_t pid; char sidbuf[32]; char tokenbufh[32]; char tokenbufl[32]; dm_attrname_t attrname; dm_attrlist_t bufp[1024]; size_t rlenp; dm_stat_t statp; FILE* mnttab; struct mntent *ent; struct statfs sbuf; dm_ino_t inop; char s[512]; char hname[512]; char *yamssRecallPath="/system/YAMSS_DMRECALL"; char *yamssDMAPIPath="/system/YAMSS_DMERROR"; int fd; int i; int ret; unsigned char c; char extobj[1024]; char inode[32]; time_t rectime, now; struct stat filebuf; // fork a new child pid = fork(); if (pid == 0) { // fork succeeded, we are in the child now mypid=getpid(); // block signals block_signals(mypid); sprintf(sidbuf, "%llx", sid); sprintf(tokenbufh, "%llx", token.high); sprintf(tokenbufl, "%llx", token.low); if (Verbose) { fprintf(stderr, "%d: New child spawn with action=%s, sidbuf=%s, tokenbufh=%s, tokenbufl=%s\n", mypid, action, sidbuf, tokenbufh, tokenbufl); } // green light to mount requests if(!strcmp(action,"MOUNT")) { if (dm_respond_event(sid, token, DM_RESP_CONTINUE, 0, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); exit(1); } if(Verbose) fprintf(stderr,"%d: MOUNT request served\n", mypid); exit(0); } // give error message to write and truncate events // i.e. we don't allow modifications of files on tape if(strcmp(action,"READ")) { // tell client that writing is not permitted if (dm_respond_event(sid, token, DM_RESP_ABORT, EPERM, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); exit(1); } if(Verbose) fprintf(stderr,"%d: %s event rejected with EPERM\n", mypid, action); exit(0); } // get file inode number ret = dm_handle_to_ino(hanp, hlen, &inop); if(ret==-1) { fprintf(stderr,"%d: dm_handle_to_ino: failed, %s\n", mypid, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } // get dmapi extended attribute with tsm external object id memset((void *)&attrname.an_chars[0], 0, DM_ATTR_NAME_SIZE); memcpy((void *)&attrname.an_chars[0], "IBMObj", 6); ret = dm_get_dmattr(sid, hanp, hlen, DM_NO_TOKEN, &attrname, sizeof(bufp), bufp, &rlenp); if(ret==-1&&errno!=ENOENT) { fprintf(stderr,"%d: dm_get_dmattr: failed, %s\n", mypid, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } else if(ret==-1) { // get file attributes structure ret=dm_get_fileattr(sid,hanp,hlen,DM_NO_TOKEN,DM_AT_STAT,&statp); if(ret==-1) { fprintf(stderr,"%d: dm_get_fileattr: failed, %s\n", mypid, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } // IBMObj is not there, double-check if number of blocks on disk is OK if(statp.dt_blocks>=(statp.dt_size/statp.dt_blksize)) { // File has been recalled if (dm_respond_event(sid, token, DM_RESP_CONTINUE, 0, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } printf("%d: %s event for inode %llu on mount point %s served correctly (file was found to be already on disk)\n", mypid, action, inop, fsname); exit(0); } } // get file attributes structure ret=dm_get_fileattr(sid,hanp,hlen,DM_NO_TOKEN,DM_AT_STAT,&statp); if(ret==-1) { fprintf(stderr,"%d: dm_get_fileattr: failed, %s\n", mypid, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } // determine mount point for the requested file mnttab = fopen("/etc/mtab", "r"); ent=getmntent(mnttab); while(ent) { if(!statfs(ent->mnt_dir, &sbuf)) { if(statp.dt_dev==*(int*)&sbuf.f_fsid) { break; } } ent = getmntent(mnttab); } fclose(mnttab); if(!ent) { fprintf(stderr,"%d: cannot determine mountpoint\n", mypid); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } printf("%d: serving %s event for file on mount point %s with inode number %llu and external object id ", mypid, action, ent->mnt_dir, inop); for(i=0;i<EXTOBJID_LEN;i++) { c=((unsigned char*)bufp)[i]; sprintf(extobj+i*2,"%02X",c); } *(extobj+i*2)=0; printf("%s\n",extobj); // get host name if(gethostname(hname,512)) { // this should never happen... but don't need to fail fprintf(stderr,"%d: cannot get hostname. Setting to dummy\n", mypid); sprintf(hname,"dummy"); } // generate temporary file with unique name containing the external object id of the file to be recalled sprintf(s,"%s%s/%s.%d.XXXXXXXX",ent->mnt_dir,yamssRecallPath,hname,mypid); if((fd=mkstemp(s))<0) { fprintf(stderr,"%d: cannot generate temporary file %s\n",mypid, s); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } // write external object id, mount point and inode number into temporary file sprintf(inode,"%llu",inop); if(write(fd,extobj,strlen(extobj))<0 || write(fd," ",1)<0 || write(fd,ent->mnt_dir,strlen(ent->mnt_dir))<0 || write(fd," ",1)<0 || write(fd,inode,strlen(inode))<0 || write(fd,"\n",1)<0) { fprintf(stderr,"%d: cannot write into temporary file %s, %d/%s\n",mypid, s,errno,strerror(errno)); close(fd); if(unlink(s)<0) { fprintf(stderr,"%d: cannot unlink temporary file %s, %d/%s\n",mypid, s, errno,strerror(errno)); } // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } close(fd); // save start time rectime=time(NULL); // Poll until file is on disk while(1) { // get file attributes structure ret=dm_get_fileattr(sid,hanp,hlen,DM_NO_TOKEN,DM_AT_STAT,&statp); if(ret==-1) { fprintf(stderr,"%d: dm_get_fileattr: failed, %s\n", mypid, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } if(Verbose&&statp.dt_blocks!=0) { fprintf(stderr,"%d: recalling inode %s dt_blocks %llu dt_size %lld dt_blksize %u\n", mypid, inode, statp.dt_blocks, statp.dt_size, statp.dt_blksize); } // check if IBMObj is there memset((void *)&attrname.an_chars[0], 0, DM_ATTR_NAME_SIZE); memcpy((void *)&attrname.an_chars[0], "IBMObj", 6); ret = dm_get_dmattr(sid, hanp, hlen, DM_NO_TOKEN, &attrname, sizeof(bufp), bufp, &rlenp); if(ret==-1&&errno!=ENOENT) { // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); fprintf(stderr,"%d: dm_get_dmattr: failed, %s\n", mypid, strerror(errno)); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } else if(ret==-1) { if(Verbose) { fprintf(stderr,"%d: IBMObj has been removed for inode %s\n", mypid, inode); } } // check if number of blocks on disk is OK and if IBMObj has been removed if(statp.dt_blocks>=(statp.dt_size/statp.dt_blksize)&&ret==-1&&errno==ENOENT) { // File has been recalled if (dm_respond_event(sid, token, DM_RESP_CONTINUE, 0, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); // if filesystem is not mounted don't reply with error // it might be a normal mmshutdown and event will be taken over if(!filesystem_is_mounted()) exit(1); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } printf("%d: %s event for inode %llu on mount point %s served correctly\n", mypid, action, inop, ent->mnt_dir); exit(0); } sleep(RECALL_CHECK_SLEEP_TIME); // check if an error flag file has been raised sprintf(s,"%s%s/%s",ent->mnt_dir,yamssDMAPIPath,inode); if(!stat(s, &filebuf) && filebuf.st_ctime>rectime) { fprintf(stderr,"%d: error flag found - cannot recall inode %s on disk\n", mypid, inode); // respond EIO in this case to differentiate with EBUSY generic errors if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } // check if recall timeout expired now=time(NULL); if((now-rectime)>RECALL_TIMEOUT) { fprintf(stderr,"%d: timed out - cannot recall inode %s on disk after %d seconds\n", mypid, inode, RECALL_TIMEOUT); if (dm_respond_event(sid, token, DM_RESP_ABORT, ETIMEDOUT, 0, NULL)) { fprintf(stderr, "%d: dm_respond_event failed, %d/%s\n", mypid, errno, strerror(errno)); } exit(1); } } } // fork failed if (pid < 0) { fprintf(stderr,"Can't fork child\n"); if (dm_respond_event(sid, token, DM_RESP_ABORT, EBUSY, 0, NULL)) { fprintf(stderr, "dm_respond_event failed, %d/%s\n", errno, strerror(errno)); } return; } // only the father can reach here, increase child counter child_proc_count++; return; }
int main( int argc, char **argv) { dm_sessid_t sid = DM_NO_SESSION; dm_off_t startoff = 0; /* starting offset */ u_int nelem = 100; char *pathname; void *hanp; size_t hlen; dm_stat_t sbuf; char *name; int opt; if (Progname = strrchr(argv[0], '/')) { Progname++; } else { Progname = argv[0]; } /* Crack and validate the command line options. */ while ((opt = getopt(argc, argv, "Dn:o:s:")) != EOF) { switch(opt) { case 'D': Dflag++; break; case 'n': nelem = atol(optarg); break; case 'o': startoff = atoll(optarg); break; case 's': sid = atol(optarg); break; case '?': usage(); } } if (optind + 1 != argc) usage(); pathname = argv[optind]; if (dm_init_service(&name)) { fprintf(stderr, "dm_init_service failed, %s\n", strerror(errno)); exit(1); } if (sid == DM_NO_SESSION) find_test_session(&sid); /* Get the file's handle and verify that it is a regular file. */ if (dm_path_to_handle(pathname, &hanp, &hlen)) { fprintf(stderr, "can't get handle for %s\n", pathname); exit(1); } if (dm_get_fileattr(sid, hanp, hlen, DM_NO_TOKEN, DM_AT_STAT, &sbuf)) { fprintf(stderr, "dm_get_fileattr failed\n"); exit(1); } if (!S_ISREG(sbuf.dt_mode)) { fprintf(stderr, "%s is not a regular file\n", pathname); exit(1); } /* Print the allocation. */ if (print_alloc(sid, hanp, hlen, pathname, startoff, nelem)) exit(1); dm_handle_free(hanp, hlen); exit(0); }