From 19c9bba94152148523ba0f7ef7cffe3d45656b11 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 29 Apr 1997 21:13:14 +0000 Subject: Import of Linux/MIPS 2.1.36 --- fs/ncpfs/ncplib_kernel.c | 379 +++++++++++++++++++---------------------------- 1 file changed, 154 insertions(+), 225 deletions(-) (limited to 'fs/ncpfs/ncplib_kernel.c') diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c index a0c6f5650..f7d4de4a1 100644 --- a/fs/ncpfs/ncplib_kernel.c +++ b/fs/ncpfs/ncplib_kernel.c @@ -2,58 +2,49 @@ * ncplib_kernel.c * * Copyright (C) 1995, 1996 by Volker Lendecke + * Modified for big endian by J.F. Chadima and David S. Miller * */ #include "ncplib_kernel.h" -typedef __u8 byte; -typedef __u16 word; -typedef __u32 dword; - static inline int min(int a, int b) { - return alock == 0) - { + if (server->lock == 0) { DPRINTK("ncpfs: server not locked!\n"); } } -static void -ncp_add_byte(struct ncp_server *server, byte x) +static void ncp_add_byte(struct ncp_server *server, __u8 x) { assert_server_locked(server); - *(byte *)(&(server->packet[server->current_size])) = x; + *(__u8 *) (&(server->packet[server->current_size])) = x; server->current_size += 1; return; } -static void -ncp_add_word(struct ncp_server *server, word x) +static void ncp_add_word(struct ncp_server *server, __u16 x) { assert_server_locked(server); - *(word *)(&(server->packet[server->current_size])) = x; + put_unaligned(x, (__u16 *) (&(server->packet[server->current_size]))); server->current_size += 2; return; } -static void -ncp_add_dword(struct ncp_server *server, dword x) +static void ncp_add_dword(struct ncp_server *server, __u32 x) { assert_server_locked(server); - *(dword *)(&(server->packet[server->current_size])) = x; + put_unaligned(x, (__u32 *) (&(server->packet[server->current_size]))); server->current_size += 4; return; } -static void -ncp_add_mem(struct ncp_server *server, const void *source, int size) +static void ncp_add_mem(struct ncp_server *server, const void *source, int size) { assert_server_locked(server); memcpy(&(server->packet[server->current_size]), source, size); @@ -61,8 +52,7 @@ ncp_add_mem(struct ncp_server *server, const void *source, int size) return; } -static void -ncp_add_mem_fromfs(struct ncp_server *server, const char *source, int size) +static void ncp_add_mem_fromfs(struct ncp_server *server, const char *source, int size) { assert_server_locked(server); copy_from_user(&(server->packet[server->current_size]), source, size); @@ -70,13 +60,11 @@ ncp_add_mem_fromfs(struct ncp_server *server, const char *source, int size) return; } -static void -ncp_add_pstring(struct ncp_server *server, const char *s) +static void ncp_add_pstring(struct ncp_server *server, const char *s) { int len = strlen(s); assert_server_locked(server); - if (len > 255) - { + if (len > 255) { DPRINTK("ncpfs: string too long: %s\n", s); len = 255; } @@ -85,8 +73,7 @@ ncp_add_pstring(struct ncp_server *server, const char *s) return; } -static void -ncp_init_request(struct ncp_server *server) +static void ncp_init_request(struct ncp_server *server) { ncp_lock_server(server); @@ -94,11 +81,10 @@ ncp_init_request(struct ncp_server *server) server->has_subfunction = 0; } -static void -ncp_init_request_s(struct ncp_server *server, int subfunction) +static void ncp_init_request_s(struct ncp_server *server, int subfunction) { ncp_init_request(server); - ncp_add_word(server, 0); /* preliminary size */ + ncp_add_word(server, 0); /* preliminary size */ ncp_add_byte(server, subfunction); @@ -106,53 +92,49 @@ ncp_init_request_s(struct ncp_server *server, int subfunction) } static char * -ncp_reply_data(struct ncp_server *server, int offset) + ncp_reply_data(struct ncp_server *server, int offset) { return &(server->packet[sizeof(struct ncp_reply_header) + offset]); } -static byte -ncp_reply_byte(struct ncp_server *server, int offset) +static __u8 + ncp_reply_byte(struct ncp_server *server, int offset) { - return *(byte *)(ncp_reply_data(server, offset)); + return get_unaligned((__u8 *) ncp_reply_data(server, offset)); } -static word -ncp_reply_word(struct ncp_server *server, int offset) +static __u16 + ncp_reply_word(struct ncp_server *server, int offset) { - return *(word *)(ncp_reply_data(server, offset)); + return get_unaligned((__u16 *) ncp_reply_data(server, offset)); } -static dword -ncp_reply_dword(struct ncp_server *server, int offset) +static __u32 + ncp_reply_dword(struct ncp_server *server, int offset) { - return *(dword *)(ncp_reply_data(server, offset)); + return get_unaligned((__u32 *) ncp_reply_data(server, offset)); } -int -ncp_negotiate_buffersize(struct ncp_server *server, - int size, int *target) +int ncp_negotiate_buffersize(struct ncp_server *server, + int size, int *target) { int result; ncp_init_request(server); ncp_add_word(server, htons(size)); - - if ((result = ncp_request(server, 33)) != 0) - { + + if ((result = ncp_request(server, 33)) != 0) { ncp_unlock_server(server); return result; } - - *target =min(ntohs(ncp_reply_word(server, 0)), size); + *target = min(ntohs(ncp_reply_word(server, 0)), size); ncp_unlock_server(server); return 0; } -int -ncp_get_volume_info_with_number(struct ncp_server *server, int n, - struct ncp_volume_info *target) +int ncp_get_volume_info_with_number(struct ncp_server *server, int n, + struct ncp_volume_info *target) { int result; int len; @@ -160,14 +142,12 @@ ncp_get_volume_info_with_number(struct ncp_server *server, int n, ncp_init_request_s(server, 44); ncp_add_byte(server, n); - if ((result = ncp_request(server, 22)) != 0) - { + if ((result = ncp_request(server, 22)) != 0) { ncp_unlock_server(server); return result; } - target->total_blocks = ncp_reply_dword(server, 0); - target->free_blocks = ncp_reply_dword(server, 4); + target->free_blocks = ncp_reply_dword(server, 4); target->purgeable_blocks = ncp_reply_dword(server, 8); target->not_yet_purgeable_blocks = ncp_reply_dword(server, 12); target->total_dir_entries = ncp_reply_dword(server, 16); @@ -177,20 +157,17 @@ ncp_get_volume_info_with_number(struct ncp_server *server, int n, memset(&(target->volume_name), 0, sizeof(target->volume_name)); len = ncp_reply_byte(server, 29); - if (len > NCP_VOLNAME_LEN) - { + if (len > NCP_VOLNAME_LEN) { DPRINTK("ncpfs: volume name too long: %d\n", len); ncp_unlock_server(server); return -EIO; } - memcpy(&(target->volume_name), ncp_reply_data(server, 30), len); ncp_unlock_server(server); return 0; } -int -ncp_close_file(struct ncp_server *server, const char *file_id) +int ncp_close_file(struct ncp_server *server, const char *file_id) { int result; @@ -203,35 +180,27 @@ ncp_close_file(struct ncp_server *server, const char *file_id) return result; } -static void -ncp_add_handle_path(struct ncp_server *server, - __u8 vol_num, - __u32 dir_base, int have_dir_base, - char *path) +static void ncp_add_handle_path(struct ncp_server *server, + __u8 vol_num, + __u32 dir_base, int have_dir_base, + char *path) { ncp_add_byte(server, vol_num); ncp_add_dword(server, dir_base); - if (have_dir_base != 0) - { - ncp_add_byte(server, 1); /* dir_base */ - } - else - { - ncp_add_byte(server, 0xff); /* no handle */ + if (have_dir_base != 0) { + ncp_add_byte(server, 1); /* dir_base */ + } else { + ncp_add_byte(server, 0xff); /* no handle */ } - if (path != NULL) - { - ncp_add_byte(server, 1); /* 1 component */ + if (path != NULL) { + ncp_add_byte(server, 1); /* 1 component */ ncp_add_pstring(server, path); - } - else - { + } else { ncp_add_byte(server, 0); } } -static void -ncp_extract_file_info(void *structure, struct nw_info_struct *target) +static void ncp_extract_file_info(void *structure, struct nw_info_struct *target) { __u8 *name_len; const int info_struct_size = sizeof(struct nw_info_struct) - 257; @@ -239,70 +208,60 @@ ncp_extract_file_info(void *structure, struct nw_info_struct *target) memcpy(target, structure, info_struct_size); name_len = structure + info_struct_size; target->nameLen = *name_len; - strncpy(target->entryName, name_len+1, *name_len); + strncpy(target->entryName, name_len + 1, *name_len); target->entryName[*name_len] = '\0'; return; } -int -ncp_obtain_info(struct ncp_server *server, - __u8 vol_num, __u32 dir_base, - char *path, /* At most 1 component */ - struct nw_info_struct *target) +int ncp_obtain_info(struct ncp_server *server, + __u8 vol_num, __u32 dir_base, + char *path, /* At most 1 component */ + struct nw_info_struct *target) { int result; - if (target == NULL) - { + if (target == NULL) { return -EINVAL; } - ncp_init_request(server); - ncp_add_byte(server, 6); /* subfunction */ + ncp_add_byte(server, 6); /* subfunction */ ncp_add_byte(server, server->name_space[vol_num]); ncp_add_byte(server, server->name_space[vol_num]); - ncp_add_word(server, 0xff); /* get all */ + ncp_add_word(server, htons(0xff00)); /* get all */ ncp_add_dword(server, RIM_ALL); ncp_add_handle_path(server, vol_num, dir_base, 1, path); - if ((result = ncp_request(server, 87)) != 0) - { + if ((result = ncp_request(server, 87)) != 0) { ncp_unlock_server(server); return result; } - ncp_extract_file_info(ncp_reply_data(server, 0), target); ncp_unlock_server(server); return 0; } -static inline int -ncp_has_os2_namespace(struct ncp_server *server, __u8 volume) +static inline int ncp_has_os2_namespace(struct ncp_server *server, __u8 volume) { int result; __u8 *namespace; __u16 no_namespaces; ncp_init_request(server); - ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */ + ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */ ncp_add_word(server, 0); ncp_add_byte(server, volume); - if ((result = ncp_request(server, 87)) != 0) - { + if ((result = ncp_request(server, 87)) != 0) { ncp_unlock_server(server); return 0; } - no_namespaces = ncp_reply_word(server, 0); namespace = ncp_reply_data(server, 2); - while (no_namespaces > 0) - { - DPRINTK("get_namespaces: found %d on %d\n", *namespace,volume); + while (no_namespaces > 0) { + DPRINTK("get_namespaces: found %d on %d\n", *namespace, volume); - if (*namespace == 4) - { + if (*namespace == 4) { DPRINTK("get_namespaces: found OS2\n"); ncp_unlock_server(server); return 1; @@ -314,10 +273,9 @@ ncp_has_os2_namespace(struct ncp_server *server, __u8 volume) return 0; } -int -ncp_lookup_volume(struct ncp_server *server, - char *volname, - struct nw_info_struct *target) +int ncp_lookup_volume(struct ncp_server *server, + char *volname, + struct nw_info_struct *target) { int result; int volnum; @@ -325,30 +283,28 @@ ncp_lookup_volume(struct ncp_server *server, DPRINTK("ncp_lookup_volume: looking up vol %s\n", volname); ncp_init_request(server); - ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */ - ncp_add_byte(server, 0); /* DOS namespace */ - ncp_add_byte(server, 0); /* reserved */ - ncp_add_byte(server, 0); /* reserved */ - ncp_add_byte(server, 0); /* reserved */ - - ncp_add_byte(server, 0); /* faked volume number */ - ncp_add_dword(server, 0); /* faked dir_base */ - ncp_add_byte(server, 0xff); /* Don't have a dir_base */ - ncp_add_byte(server, 1); /* 1 path component */ + ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */ + ncp_add_byte(server, 0); /* DOS namespace */ + ncp_add_byte(server, 0); /* reserved */ + ncp_add_byte(server, 0); /* reserved */ + ncp_add_byte(server, 0); /* reserved */ + + ncp_add_byte(server, 0); /* faked volume number */ + ncp_add_dword(server, 0); /* faked dir_base */ + ncp_add_byte(server, 0xff); /* Don't have a dir_base */ + ncp_add_byte(server, 1); /* 1 path component */ ncp_add_pstring(server, volname); - if ((result = ncp_request(server, 87)) != 0) - { + if ((result = ncp_request(server, 87)) != 0) { ncp_unlock_server(server); return result; } - memset(target, 0, sizeof(*target)); target->DosDirNum = target->dirEntNum = ncp_reply_dword(server, 4); target->volNumber = volnum = ncp_reply_byte(server, 8); ncp_unlock_server(server); - server->name_space[volnum] = ncp_has_os2_namespace(server,volnum)?4:0; + server->name_space[volnum] = ncp_has_os2_namespace(server, volnum) ? 4 : 0; DPRINTK("lookup_vol: namespace[%d] = %d\n", volnum, server->name_space[volnum]); @@ -359,19 +315,18 @@ ncp_lookup_volume(struct ncp_server *server, return 0; } -int -ncp_modify_file_or_subdir_dos_info(struct ncp_server *server, - struct nw_info_struct *file, - __u32 info_mask, - struct nw_modify_dos_info *info) +int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server, + struct nw_info_struct *file, + __u32 info_mask, + struct nw_modify_dos_info *info) { int result; ncp_init_request(server); - ncp_add_byte(server, 7); /* subfunction */ + ncp_add_byte(server, 7); /* subfunction */ ncp_add_byte(server, server->name_space[file->volNumber]); - ncp_add_byte(server, 0); /* reserved */ - ncp_add_word(server, 0x8006); /* search attribs: all */ + ncp_add_byte(server, 0); /* reserved */ + ncp_add_word(server, htons(0x0680)); /* search attribs: all */ ncp_add_dword(server, info_mask); ncp_add_mem(server, info, sizeof(*info)); @@ -383,55 +338,50 @@ ncp_modify_file_or_subdir_dos_info(struct ncp_server *server, return result; } -int -ncp_del_file_or_subdir(struct ncp_server *server, - struct nw_info_struct *dir, char *name) +int ncp_del_file_or_subdir(struct ncp_server *server, + struct nw_info_struct *dir, char *name) { int result; ncp_init_request(server); - ncp_add_byte(server, 8); /* subfunction */ + ncp_add_byte(server, 8); /* subfunction */ ncp_add_byte(server, server->name_space[dir->volNumber]); - ncp_add_byte(server, 0); /* reserved */ - ncp_add_word(server, 0x8006); /* search attribs: all */ + ncp_add_byte(server, 0); /* reserved */ + ncp_add_word(server, ntohs(0x0680)); /* search attribs: all */ ncp_add_handle_path(server, dir->volNumber, dir->dirEntNum, 1, name); - + result = ncp_request(server, 87); ncp_unlock_server(server); return result; } -static inline void -ConvertToNWfromDWORD ( __u32 sfd , __u8 ret[6] ) +static inline void ConvertToNWfromDWORD(__u32 sfd, __u8 ret[6]) { - __u16 *dest = (__u16 *) ret; - memcpy(&(dest[1]), &sfd, 4); - dest[0] = dest[1] + 1; - return; + __u16 *dest = (__u16 *) ret; + memcpy(ret + 2, &sfd, 4); + dest[0] = cpu_to_le16((le16_to_cpu(dest[1]) + le16_to_cpu(1))); + return; } /* If both dir and name are NULL, then in target there's already a looked-up entry that wants to be opened. */ -int -ncp_open_create_file_or_subdir(struct ncp_server *server, - struct nw_info_struct *dir, char *name, - int open_create_mode, - __u32 create_attributes, - int desired_acc_rights, - struct nw_file_info *target) +int ncp_open_create_file_or_subdir(struct ncp_server *server, + struct nw_info_struct *dir, char *name, + int open_create_mode, + __u32 create_attributes, + int desired_acc_rights, + struct nw_file_info *target) { int result; - __u16 search_attribs = 0x0006; + __u16 search_attribs = ntohs(0x0600); __u8 volume = (dir != NULL) ? dir->volNumber : target->i.volNumber; - if ((create_attributes & aDIR) != 0) - { - search_attribs |= 0x8000; -} - + if ((create_attributes & aDIR) != 0) { + search_attribs |= ntohs(0x0080); + } ncp_init_request(server); - ncp_add_byte(server, 1); /* subfunction */ + ncp_add_byte(server, 1); /* subfunction */ ncp_add_byte(server, server->name_space[volume]); ncp_add_byte(server, open_create_mode); ncp_add_word(server, search_attribs); @@ -441,89 +391,76 @@ ncp_open_create_file_or_subdir(struct ncp_server *server, for directories */ ncp_add_word(server, desired_acc_rights); - if (dir != NULL) - { + if (dir != NULL) { ncp_add_handle_path(server, volume, dir->dirEntNum, 1, name); - } - else - { + } else { ncp_add_handle_path(server, volume, target->i.dirEntNum, 1, NULL); - } + } - if ((result = ncp_request(server, 87)) != 0) - { + if ((result = ncp_request(server, 87)) != 0) { ncp_unlock_server(server); return result; } - target->opened = 1; target->server_file_handle = ncp_reply_dword(server, 0); target->open_create_action = ncp_reply_byte(server, 4); - if (dir != NULL) - { + if (dir != NULL) { /* in target there's a new finfo to fill */ ncp_extract_file_info(ncp_reply_data(server, 5), &(target->i)); } - ConvertToNWfromDWORD(target->server_file_handle, target->file_handle); ncp_unlock_server(server); return 0; } - -int -ncp_initialize_search(struct ncp_server *server, - struct nw_info_struct *dir, - struct nw_search_sequence *target) + +int ncp_initialize_search(struct ncp_server *server, + struct nw_info_struct *dir, + struct nw_search_sequence *target) { int result; ncp_init_request(server); - ncp_add_byte(server, 2); /* subfunction */ + ncp_add_byte(server, 2); /* subfunction */ ncp_add_byte(server, server->name_space[dir->volNumber]); - ncp_add_byte(server, 0); /* reserved */ + ncp_add_byte(server, 0); /* reserved */ ncp_add_handle_path(server, dir->volNumber, dir->dirEntNum, 1, NULL); - - if ((result = ncp_request(server, 87)) != 0) - { + + if ((result = ncp_request(server, 87)) != 0) { ncp_unlock_server(server); return result; } - memcpy(target, ncp_reply_data(server, 0), sizeof(*target)); ncp_unlock_server(server); return 0; } - + /* Search for everything */ -int -ncp_search_for_file_or_subdir(struct ncp_server *server, - struct nw_search_sequence *seq, - struct nw_info_struct *target) +int ncp_search_for_file_or_subdir(struct ncp_server *server, + struct nw_search_sequence *seq, + struct nw_info_struct *target) { int result; ncp_init_request(server); - ncp_add_byte(server, 3); /* subfunction */ + ncp_add_byte(server, 3); /* subfunction */ ncp_add_byte(server, server->name_space[seq->volNumber]); - ncp_add_byte(server, 0); /* data stream (???) */ - ncp_add_word(server, 0xffff); /* Search attribs */ - ncp_add_dword(server, RIM_ALL); /* return info mask */ + ncp_add_byte(server, 0); /* data stream (???) */ + ncp_add_word(server, 0xffff); /* Search attribs */ + ncp_add_dword(server, RIM_ALL); /* return info mask */ ncp_add_mem(server, seq, 9); - ncp_add_byte(server, 2); /* 2 byte pattern */ - ncp_add_byte(server, 0xff); /* following is a wildcard */ + ncp_add_byte(server, 2); /* 2 byte pattern */ + ncp_add_byte(server, 0xff); /* following is a wildcard */ ncp_add_byte(server, '*'); - - if ((result = ncp_request(server, 87)) != 0) - { + + if ((result = ncp_request(server, 87)) != 0) { ncp_unlock_server(server); return result; } - memcpy(seq, ncp_reply_data(server, 0), sizeof(*seq)); ncp_extract_file_info(ncp_reply_data(server, 10), target); @@ -531,34 +468,33 @@ ncp_search_for_file_or_subdir(struct ncp_server *server, return 0; } -int -ncp_ren_or_mov_file_or_subdir(struct ncp_server *server, - struct nw_info_struct *old_dir, char *old_name, - struct nw_info_struct *new_dir, char *new_name) +int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server, + struct nw_info_struct *old_dir, char *old_name, + struct nw_info_struct *new_dir, char *new_name) { int result; - if ( (old_dir == NULL) || (old_name == NULL) + if ((old_dir == NULL) || (old_name == NULL) || (new_dir == NULL) || (new_name == NULL)) return -EINVAL; - + ncp_init_request(server); - ncp_add_byte(server, 4); /* subfunction */ + ncp_add_byte(server, 4); /* subfunction */ ncp_add_byte(server, server->name_space[old_dir->volNumber]); - ncp_add_byte(server, 1); /* rename flag */ - ncp_add_word(server, 0x8006); /* search attributes */ + ncp_add_byte(server, 1); /* rename flag */ + ncp_add_word(server, ntohs(0x0680)); /* search attributes */ /* source Handle Path */ ncp_add_byte(server, old_dir->volNumber); ncp_add_dword(server, old_dir->dirEntNum); ncp_add_byte(server, 1); - ncp_add_byte(server, 1); /* 1 source component */ + ncp_add_byte(server, 1); /* 1 source component */ /* dest Handle Path */ ncp_add_byte(server, new_dir->volNumber); ncp_add_dword(server, new_dir->dirEntNum); ncp_add_byte(server, 1); - ncp_add_byte(server, 1); /* 1 destination component */ + ncp_add_byte(server, 1); /* 1 destination component */ /* source path string */ ncp_add_pstring(server, old_name); @@ -569,13 +505,12 @@ ncp_ren_or_mov_file_or_subdir(struct ncp_server *server, ncp_unlock_server(server); return result; } - + /* We have to transfer to/from user space */ -int -ncp_read(struct ncp_server *server, const char *file_id, - __u32 offset, __u16 to_read, - char *target, int *bytes_read) +int ncp_read(struct ncp_server *server, const char *file_id, + __u32 offset, __u16 to_read, + char *target, int *bytes_read) { int result; @@ -585,24 +520,21 @@ ncp_read(struct ncp_server *server, const char *file_id, ncp_add_dword(server, htonl(offset)); ncp_add_word(server, htons(to_read)); - if ((result = ncp_request(server, 72)) != 0) - { + if ((result = ncp_request(server, 72)) != 0) { ncp_unlock_server(server); return result; } - *bytes_read = ntohs(ncp_reply_word(server, 0)); - copy_to_user(target, ncp_reply_data(server, 2+(offset&1)), *bytes_read); + copy_to_user(target, ncp_reply_data(server, 2 + (offset & 1)), *bytes_read); ncp_unlock_server(server); return 0; } -int -ncp_write(struct ncp_server *server, const char *file_id, - __u32 offset, __u16 to_write, - const char *source, int *bytes_written) +int ncp_write(struct ncp_server *server, const char *file_id, + __u32 offset, __u16 to_write, + const char *source, int *bytes_written) { int result; @@ -613,15 +545,12 @@ ncp_write(struct ncp_server *server, const char *file_id, ncp_add_word(server, htons(to_write)); ncp_add_mem_fromfs(server, source, to_write); - if ((result = ncp_request(server, 73)) != 0) - { + if ((result = ncp_request(server, 73)) != 0) { ncp_unlock_server(server); return result; } - *bytes_written = to_write; ncp_unlock_server(server); return 0; } - -- cgit v1.2.3