From bc5bca53cca350eb90fc9f84c2e37ba6383807c3 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 15 Feb 2012 14:48:01 -0800 Subject: driver-core: documentation: fix up Greg's email address My old email address was used in a lot of documentation files, so fix this up to point to the correct one now. Signed-off-by: Greg Kroah-Hartman --- Documentation/ioctl/ioctl-number.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/ioctl/ioctl-number.txt') diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 4840334ea97b..5dbd9066ed16 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -189,7 +189,7 @@ Code Seq#(hex) Include File Comments 'Y' all linux/cyclades.h 'Z' 14-15 drivers/message/fusion/mptctl.h '[' 00-07 linux/usb/tmc.h USB Test and Measurement Devices - + 'a' all linux/atm*.h, linux/sonet.h ATM on linux 'b' 00-FF conflict! bit3 vme host bridge -- cgit v1.2.3 From bf7daebb9fba540cb8864f435f153678b3e5c171 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Sun, 4 Mar 2012 12:56:04 +0000 Subject: ppp: Move ioctl definitions from if_ppp.h to new ppp-ioctl.h This moves the definitions of the ioctls, constants and structures relating to the ppp_generic interface to userspace out from if_ppp.h to a new file, ppp-ioctl.h. The new file has my copyright since I designed and implemented the ppp_generic interface in the late 1990s. None of the contents of this file comes from the original if_ppp.h published by Carnegie Mellon University. Of the remainder of if_ppp.h, only the PPP_MTU definition was being used, and this replaces the uses of it with PPP_MRU (which is identical). Therefore, this replaces the entire file with the single line #include which clearly doesn't contain any CMU code. Thus I have removed the CMU copyright notice with its problematic advertising clause, and in fact since it's only one trivial line I have not added any other copyright notice. Signed-off-by: Paul Mackerras Signed-off-by: David S. Miller --- Documentation/ioctl/ioctl-number.txt | 2 +- Documentation/networking/ppp_generic.txt | 6 +- drivers/net/ppp/ppp_generic.c | 4 +- drivers/net/ppp/pptp.c | 4 +- include/linux/Kbuild | 1 + include/linux/if_ppp.h | 174 +------------------------------ include/linux/ppp-ioctl.h | 119 +++++++++++++++++++++ 7 files changed, 129 insertions(+), 181 deletions(-) create mode 100644 include/linux/ppp-ioctl.h (limited to 'Documentation/ioctl/ioctl-number.txt') diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 4840334ea97b..85af5482f0ab 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -255,7 +255,7 @@ Code Seq#(hex) Include File Comments linux/ixjuser.h 'r' 00-1F linux/msdos_fs.h and fs/fat/dir.c 's' all linux/cdk.h -'t' 00-7F linux/if_ppp.h +'t' 00-7F linux/ppp-ioctl.h 't' 80-8F linux/isdn_ppp.h 't' 90 linux/toshiba.h 'u' 00-1F linux/smb_fs.h gone diff --git a/Documentation/networking/ppp_generic.txt b/Documentation/networking/ppp_generic.txt index 15b5172fbb98..091d20273dcb 100644 --- a/Documentation/networking/ppp_generic.txt +++ b/Documentation/networking/ppp_generic.txt @@ -342,7 +342,7 @@ an interface unit are: numbers on received multilink fragments SC_MP_XSHORTSEQ transmit short multilink sequence nos. - The values of these flags are defined in . Note + The values of these flags are defined in . Note that the values of the SC_MULTILINK, SC_MP_SHORTSEQ and SC_MP_XSHORTSEQ bits are ignored if the CONFIG_PPP_MULTILINK option is not selected. @@ -358,7 +358,7 @@ an interface unit are: * PPPIOCSCOMPRESS sets the parameters for packet compression or decompression. The argument should point to a ppp_option_data - structure (defined in ), which contains a + structure (defined in ), which contains a pointer/length pair which should describe a block of memory containing a CCP option specifying a compression method and its parameters. The ppp_option_data struct also contains a `transmit' @@ -395,7 +395,7 @@ an interface unit are: * PPPIOCSNPMODE sets the network-protocol mode for a given network protocol. The argument should point to an npioctl struct (defined - in ). The `protocol' field gives the PPP protocol + in ). The `protocol' field gives the PPP protocol number for the protocol to be affected, and the `mode' field specifies what to do with packets for that protocol: diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 6d4d2ebb0a8a..159da2905fe9 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -32,7 +32,7 @@ #include #include #include -#include +#include #include #include #include @@ -1031,7 +1031,7 @@ static void ppp_setup(struct net_device *dev) { dev->netdev_ops = &ppp_netdev_ops; dev->hard_header_len = PPP_HDRLEN; - dev->mtu = PPP_MTU; + dev->mtu = PPP_MRU; dev->addr_len = 0; dev->tx_queue_len = 3; dev->type = ARPHRD_PPP; diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index 234cd9d87ed9..885dbdd9c39e 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -23,7 +23,7 @@ #include #include #include -#include +#include #include #include #include @@ -481,7 +481,7 @@ static int pptp_connect(struct socket *sock, struct sockaddr *uservaddr, po->chan.mtu = dst_mtu(&rt->dst); if (!po->chan.mtu) - po->chan.mtu = PPP_MTU; + po->chan.mtu = PPP_MRU; ip_rt_put(rt); po->chan.mtu -= PPTP_HEADER_OVERHEAD; diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 4b0b7ed4a999..a25555381097 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -305,6 +305,7 @@ header-y += poll.h header-y += posix_types.h header-y += ppdev.h header-y += ppp-comp.h +header-y += ppp-ioctl.h header-y += ppp_defs.h header-y += pps.h header-y += prctl.h diff --git a/include/linux/if_ppp.h b/include/linux/if_ppp.h index c9ad38322576..9048fabb7a4e 100644 --- a/include/linux/if_ppp.h +++ b/include/linux/if_ppp.h @@ -1,173 +1 @@ -/* - * if_ppp.h - Point-to-Point Protocol definitions. - * - * Copyright (c) 1989 Carnegie Mellon University. - * All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by Carnegie Mellon University. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - */ - -/* - * ==FILEVERSION 20050812== - * - * NOTE TO MAINTAINERS: - * If you modify this file at all, please set the above date. - * if_ppp.h is shipped with a PPP distribution as well as with the kernel; - * if everyone increases the FILEVERSION number above, then scripts - * can do the right thing when deciding whether to install a new if_ppp.h - * file. Don't change the format of that line otherwise, so the - * installation script can recognize it. - */ - -#ifndef _IF_PPP_H_ -#define _IF_PPP_H_ - -#include -#include - -/* - * Packet sizes - */ - -#define PPP_MTU 1500 /* Default MTU (size of Info field) */ -#define PPP_MAXMRU 65000 /* Largest MRU we allow */ -#define PROTO_IPX 0x002b /* protocol numbers */ -#define PROTO_DNA_RT 0x0027 /* DNA Routing */ - - -/* - * Bit definitions for flags. - */ - -#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */ -#define SC_COMP_AC 0x00000002 /* header compression (output) */ -#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */ -#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */ -#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */ -#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */ -#define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */ -#define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */ -#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */ -#define SC_LOOP_TRAFFIC 0x00000200 /* send traffic to pppd */ -#define SC_MULTILINK 0x00000400 /* do multilink encapsulation */ -#define SC_MP_SHORTSEQ 0x00000800 /* use short MP sequence numbers */ -#define SC_COMP_RUN 0x00001000 /* compressor has been inited */ -#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */ -#define SC_MP_XSHORTSEQ 0x00004000 /* transmit short MP seq numbers */ -#define SC_DEBUG 0x00010000 /* enable debug messages */ -#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */ -#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */ -#define SC_LOG_RAWIN 0x00080000 /* log all chars received */ -#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */ -#define SC_SYNC 0x00200000 /* synchronous serial mode */ -#define SC_MUST_COMP 0x00400000 /* no uncompressed packets may be sent or received */ -#define SC_MASK 0x0f600fff /* bits that user can change */ - -/* state bits */ -#define SC_XMIT_BUSY 0x10000000 /* (used by isdn_ppp?) */ -#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */ -#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */ -#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */ -#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */ -#define SC_DC_FERROR 0x00800000 /* fatal decomp error detected */ -#define SC_DC_ERROR 0x00400000 /* non-fatal decomp error detected */ - -/* - * Ioctl definitions. - */ - -struct npioctl { - int protocol; /* PPP protocol, e.g. PPP_IP */ - enum NPmode mode; -}; - -/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */ -struct ppp_option_data { - __u8 __user *ptr; - __u32 length; - int transmit; -}; - -struct ifpppstatsreq { - struct ifreq b; - struct ppp_stats stats; /* statistic information */ -}; - -struct ifpppcstatsreq { - struct ifreq b; - struct ppp_comp_stats stats; -}; - -/* For PPPIOCGL2TPSTATS */ -struct pppol2tp_ioc_stats { - __u16 tunnel_id; /* redundant */ - __u16 session_id; /* if zero, get tunnel stats */ - __u32 using_ipsec:1; /* valid only for session_id == 0 */ - __aligned_u64 tx_packets; - __aligned_u64 tx_bytes; - __aligned_u64 tx_errors; - __aligned_u64 rx_packets; - __aligned_u64 rx_bytes; - __aligned_u64 rx_seq_discards; - __aligned_u64 rx_oos_packets; - __aligned_u64 rx_errors; -}; - -#define ifr__name b.ifr_ifrn.ifrn_name -#define stats_ptr b.ifr_ifru.ifru_data - -/* - * Ioctl definitions. - */ - -#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */ -#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */ -#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */ -#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */ -#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */ -#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */ -#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */ -#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */ -#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */ -#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */ -#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */ -#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */ -#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */ -#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data) -#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */ -#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */ -#define PPPIOCSPASS _IOW('t', 71, struct sock_fprog) /* set pass filter */ -#define PPPIOCSACTIVE _IOW('t', 70, struct sock_fprog) /* set active filt */ -#define PPPIOCGDEBUG _IOR('t', 65, int) /* Read debug level */ -#define PPPIOCSDEBUG _IOW('t', 64, int) /* Set debug level */ -#define PPPIOCGIDLE _IOR('t', 63, struct ppp_idle) /* get idle time */ -#define PPPIOCNEWUNIT _IOWR('t', 62, int) /* create new ppp unit */ -#define PPPIOCATTACH _IOW('t', 61, int) /* attach to ppp unit */ -#define PPPIOCDETACH _IOW('t', 60, int) /* detach from ppp unit/chan */ -#define PPPIOCSMRRU _IOW('t', 59, int) /* set multilink MRU */ -#define PPPIOCCONNECT _IOW('t', 58, int) /* connect channel to unit */ -#define PPPIOCDISCONN _IO('t', 57) /* disconnect channel */ -#define PPPIOCATTCHAN _IOW('t', 56, int) /* attach to ppp channel */ -#define PPPIOCGCHAN _IOR('t', 55, int) /* get ppp channel number */ -#define PPPIOCGL2TPSTATS _IOR('t', 54, struct pppol2tp_ioc_stats) - -#define SIOCGPPPSTATS (SIOCDEVPRIVATE + 0) -#define SIOCGPPPVER (SIOCDEVPRIVATE + 1) /* NEVER change this!! */ -#define SIOCGPPPCSTATS (SIOCDEVPRIVATE + 2) - -#if !defined(ifr_mtu) -#define ifr_mtu ifr_ifru.ifru_metric -#endif - -#endif /* _IF_PPP_H_ */ +#include diff --git a/include/linux/ppp-ioctl.h b/include/linux/ppp-ioctl.h new file mode 100644 index 000000000000..2d9a8859550a --- /dev/null +++ b/include/linux/ppp-ioctl.h @@ -0,0 +1,119 @@ +/* + * ppp-ioctl.h - PPP ioctl definitions. + * + * Copyright 1999-2002 Paul Mackerras. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + */ +#ifndef _PPP_IOCTL_H +#define _PPP_IOCTL_H + +#include +#include + +/* + * Bit definitions for flags argument to PPPIOCGFLAGS/PPPIOCSFLAGS. + */ +#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */ +#define SC_COMP_AC 0x00000002 /* header compression (output) */ +#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */ +#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */ +#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */ +#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */ +#define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */ +#define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */ +#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */ +#define SC_LOOP_TRAFFIC 0x00000200 /* send traffic to pppd */ +#define SC_MULTILINK 0x00000400 /* do multilink encapsulation */ +#define SC_MP_SHORTSEQ 0x00000800 /* use short MP sequence numbers */ +#define SC_COMP_RUN 0x00001000 /* compressor has been inited */ +#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */ +#define SC_MP_XSHORTSEQ 0x00004000 /* transmit short MP seq numbers */ +#define SC_DEBUG 0x00010000 /* enable debug messages */ +#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */ +#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */ +#define SC_LOG_RAWIN 0x00080000 /* log all chars received */ +#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */ +#define SC_SYNC 0x00200000 /* synchronous serial mode */ +#define SC_MUST_COMP 0x00400000 /* no uncompressed packets may be sent or received */ +#define SC_MASK 0x0f600fff /* bits that user can change */ + +/* state bits */ +#define SC_XMIT_BUSY 0x10000000 /* (used by isdn_ppp?) */ +#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */ +#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */ +#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */ +#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */ +#define SC_DC_FERROR 0x00800000 /* fatal decomp error detected */ +#define SC_DC_ERROR 0x00400000 /* non-fatal decomp error detected */ + +/* Used with PPPIOCGNPMODE/PPPIOCSNPMODE */ +struct npioctl { + int protocol; /* PPP protocol, e.g. PPP_IP */ + enum NPmode mode; +}; + +/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */ +struct ppp_option_data { + __u8 __user *ptr; + __u32 length; + int transmit; +}; + +/* For PPPIOCGL2TPSTATS */ +struct pppol2tp_ioc_stats { + __u16 tunnel_id; /* redundant */ + __u16 session_id; /* if zero, get tunnel stats */ + __u32 using_ipsec:1; /* valid only for session_id == 0 */ + __aligned_u64 tx_packets; + __aligned_u64 tx_bytes; + __aligned_u64 tx_errors; + __aligned_u64 rx_packets; + __aligned_u64 rx_bytes; + __aligned_u64 rx_seq_discards; + __aligned_u64 rx_oos_packets; + __aligned_u64 rx_errors; +}; + +/* + * Ioctl definitions. + */ + +#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */ +#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */ +#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */ +#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */ +#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */ +#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */ +#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */ +#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */ +#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */ +#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */ +#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */ +#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */ +#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */ +#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data) +#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */ +#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */ +#define PPPIOCSPASS _IOW('t', 71, struct sock_fprog) /* set pass filter */ +#define PPPIOCSACTIVE _IOW('t', 70, struct sock_fprog) /* set active filt */ +#define PPPIOCGDEBUG _IOR('t', 65, int) /* Read debug level */ +#define PPPIOCSDEBUG _IOW('t', 64, int) /* Set debug level */ +#define PPPIOCGIDLE _IOR('t', 63, struct ppp_idle) /* get idle time */ +#define PPPIOCNEWUNIT _IOWR('t', 62, int) /* create new ppp unit */ +#define PPPIOCATTACH _IOW('t', 61, int) /* attach to ppp unit */ +#define PPPIOCDETACH _IOW('t', 60, int) /* detach from ppp unit/chan */ +#define PPPIOCSMRRU _IOW('t', 59, int) /* set multilink MRU */ +#define PPPIOCCONNECT _IOW('t', 58, int) /* connect channel to unit */ +#define PPPIOCDISCONN _IO('t', 57) /* disconnect channel */ +#define PPPIOCATTCHAN _IOW('t', 56, int) /* attach to ppp channel */ +#define PPPIOCGCHAN _IOR('t', 55, int) /* get ppp channel number */ +#define PPPIOCGL2TPSTATS _IOR('t', 54, struct pppol2tp_ioc_stats) + +#define SIOCGPPPSTATS (SIOCDEVPRIVATE + 0) +#define SIOCGPPPVER (SIOCDEVPRIVATE + 1) /* NEVER change this!! */ +#define SIOCGPPPCSTATS (SIOCDEVPRIVATE + 2) + +#endif /* _PPP_IOCTL_H */ -- cgit v1.2.3 From a051f71ce97c53cde3ac64de64eb02d658d9308e Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Mon, 6 Feb 2012 15:14:40 -0500 Subject: hfsplus: add an ioctl to bless files Making an hfsplus partition bootable requires the ability to "bless" a file by putting its inode number in the volume header. Doing this from userspace on a mounted filesystem is impractical since the kernel will write back the original values on unmount. Add an ioctl to allow userspace to update the volume header information based on the target file. Signed-off-by: Matthew Garrett Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro --- Documentation/ioctl/ioctl-number.txt | 1 + fs/hfsplus/hfsplus_fs.h | 5 +++++ fs/hfsplus/ioctl.c | 34 ++++++++++++++++++++++++++++++++++ 3 files changed, 40 insertions(+) (limited to 'Documentation/ioctl/ioctl-number.txt') diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 4840334ea97b..37a424868eea 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -218,6 +218,7 @@ Code Seq#(hex) Include File Comments 'h' 00-7F conflict! Charon filesystem 'h' 00-1F linux/hpet.h conflict! +'h' 80-8F fs/hfsplus/ioctl.c 'i' 00-3F linux/i2o-dev.h conflict! 'i' 0B-1F linux/ipmi.h conflict! 'i' 80-8F linux/i8k.h diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index 21a5b7fc6db4..4e75ac646fea 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -316,6 +316,11 @@ static inline unsigned short hfsplus_min_io_size(struct super_block *sb) #define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS +/* + * hfs+-specific ioctl for making the filesystem bootable + */ +#define HFSPLUS_IOC_BLESS _IO('h', 0x80) + /* * Functions in any *.c used in other files */ diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c index f66c7655b3f7..c640ba57074b 100644 --- a/fs/hfsplus/ioctl.c +++ b/fs/hfsplus/ioctl.c @@ -20,6 +20,38 @@ #include #include "hfsplus_fs.h" +/* + * "Blessing" an HFS+ filesystem writes metadata to the superblock informing + * the platform firmware which file to boot from + */ +static int hfsplus_ioctl_bless(struct file *file, int __user *user_flags) +{ + struct dentry *dentry = file->f_path.dentry; + struct inode *inode = dentry->d_inode; + struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); + struct hfsplus_vh *vh = sbi->s_vhdr; + struct hfsplus_vh *bvh = sbi->s_backup_vhdr; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + mutex_lock(&sbi->vh_mutex); + + /* Directory containing the bootable system */ + vh->finder_info[0] = bvh->finder_info[0] = + cpu_to_be32(parent_ino(dentry)); + + /* Bootloader */ + vh->finder_info[1] = bvh->finder_info[1] = cpu_to_be32(inode->i_ino); + + /* Per spec, the OS X system folder - same as finder_info[0] here */ + vh->finder_info[5] = bvh->finder_info[5] = + cpu_to_be32(parent_ino(dentry)); + + mutex_unlock(&sbi->vh_mutex); + return 0; +} + static int hfsplus_ioctl_getflags(struct file *file, int __user *user_flags) { struct inode *inode = file->f_path.dentry->d_inode; @@ -108,6 +140,8 @@ long hfsplus_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return hfsplus_ioctl_getflags(file, argp); case HFSPLUS_IOC_EXT2_SETFLAGS: return hfsplus_ioctl_setflags(file, argp); + case HFSPLUS_IOC_BLESS: + return hfsplus_ioctl_bless(file, argp); default: return -ENOTTY; } -- cgit v1.2.3