From 078073a3d48ce7c140f1538d249da3ac545065a6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:01:29 +0100 Subject: um: -include user.h for USER_OBJ, trim includes Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/chan_user.c | 2 -- arch/um/drivers/cow_sys.h | 1 - arch/um/drivers/daemon_user.c | 1 - arch/um/drivers/fd.c | 2 -- arch/um/drivers/harddog_user.c | 1 - arch/um/drivers/mconsole_user.c | 2 -- arch/um/drivers/net_user.c | 2 -- arch/um/drivers/pcap_user.c | 2 -- arch/um/drivers/port_user.c | 2 -- arch/um/drivers/pty.c | 2 -- arch/um/drivers/slip_user.c | 2 -- arch/um/drivers/slirp_user.c | 2 -- arch/um/drivers/tty.c | 2 -- arch/um/drivers/ubd_user.c | 1 - arch/um/drivers/umcast_user.c | 2 -- arch/um/drivers/vde_user.c | 2 -- arch/um/drivers/xterm.c | 2 -- 17 files changed, 30 deletions(-) (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index cfeb3f4a44af..7ed06a7399d5 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -11,10 +11,8 @@ #include #include #include "chan_user.h" -#include "kern_constants.h" #include "os.h" #include "um_malloc.h" -#include "user.h" void generic_close(int fd, void *unused) { diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h index f5701fd2ef90..7f2ed0b8824a 100644 --- a/arch/um/drivers/cow_sys.h +++ b/arch/um/drivers/cow_sys.h @@ -3,7 +3,6 @@ #include "kern_util.h" #include "os.h" -#include "user.h" #include "um_malloc.h" static inline void *cow_malloc(int size) diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c index f8e85e0bdace..a4fd7bc14af7 100644 --- a/arch/um/drivers/daemon_user.c +++ b/arch/um/drivers/daemon_user.c @@ -17,7 +17,6 @@ #include "net_user.h" #include "os.h" #include "um_malloc.h" -#include "user.h" enum request_type { REQ_NEW_CONTROL }; diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c index f5a981a16240..5b81d2574415 100644 --- a/arch/um/drivers/fd.c +++ b/arch/um/drivers/fd.c @@ -9,10 +9,8 @@ #include #include #include "chan_user.h" -#include "kern_constants.h" #include "os.h" #include "um_malloc.h" -#include "user.h" struct fd_chan { int fd; diff --git a/arch/um/drivers/harddog_user.c b/arch/um/drivers/harddog_user.c index 84dce3fc590c..0345d6206d40 100644 --- a/arch/um/drivers/harddog_user.c +++ b/arch/um/drivers/harddog_user.c @@ -7,7 +7,6 @@ #include #include #include "os.h" -#include "user.h" struct dog_data { int stdin; diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index f8cf4c8bedef..99209826adb1 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c @@ -10,9 +10,7 @@ #include #include #include -#include "kern_constants.h" #include "mconsole.h" -#include "user.h" static struct mconsole_command commands[] = { /* diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c index 520118888f16..05090c37fa84 100644 --- a/arch/um/drivers/net_user.c +++ b/arch/um/drivers/net_user.c @@ -12,10 +12,8 @@ #include #include #include "net_user.h" -#include "kern_constants.h" #include "os.h" #include "um_malloc.h" -#include "user.h" int tap_open_common(void *dev, char *gate_addr) { diff --git a/arch/um/drivers/pcap_user.c b/arch/um/drivers/pcap_user.c index 5f903587d69e..702a75b190ee 100644 --- a/arch/um/drivers/pcap_user.c +++ b/arch/um/drivers/pcap_user.c @@ -9,9 +9,7 @@ #include #include "net_user.h" #include "pcap_user.h" -#include "kern_constants.h" #include "um_malloc.h" -#include "user.h" #define PCAP_FD(p) (*(int *)(p)) diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c index b49bf56a56aa..7b010b76ddf0 100644 --- a/arch/um/drivers/port_user.c +++ b/arch/um/drivers/port_user.c @@ -10,11 +10,9 @@ #include #include #include "chan_user.h" -#include "kern_constants.h" #include "os.h" #include "port.h" #include "um_malloc.h" -#include "user.h" struct port_chan { int raw; diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c index 1113911dcb2b..cff2b75d31fd 100644 --- a/arch/um/drivers/pty.c +++ b/arch/um/drivers/pty.c @@ -12,10 +12,8 @@ #include #include #include "chan_user.h" -#include "kern_constants.h" #include "os.h" #include "um_malloc.h" -#include "user.h" struct pty_chan { void (*announce)(char *dev_name, int dev); diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c index cbacfc4e63e6..932b4d69bec2 100644 --- a/arch/um/drivers/slip_user.c +++ b/arch/um/drivers/slip_user.c @@ -11,12 +11,10 @@ #include #include #include -#include "kern_constants.h" #include "net_user.h" #include "os.h" #include "slip.h" #include "um_malloc.h" -#include "user.h" static int slip_user_init(void *data, void *dev) { diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c index a0ada8fec72a..db4adb639ff8 100644 --- a/arch/um/drivers/slirp_user.c +++ b/arch/um/drivers/slirp_user.c @@ -7,11 +7,9 @@ #include #include #include -#include "kern_constants.h" #include "net_user.h" #include "os.h" #include "slirp.h" -#include "user.h" static int slirp_user_init(void *data, void *dev) { diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c index 495858a090e4..a97391f9ec54 100644 --- a/arch/um/drivers/tty.c +++ b/arch/um/drivers/tty.c @@ -7,10 +7,8 @@ #include #include #include "chan_user.h" -#include "kern_constants.h" #include "os.h" #include "um_malloc.h" -#include "user.h" struct tty_chan { char *dev; diff --git a/arch/um/drivers/ubd_user.c b/arch/um/drivers/ubd_user.c index b591bb9c41dd..007b94d97726 100644 --- a/arch/um/drivers/ubd_user.c +++ b/arch/um/drivers/ubd_user.c @@ -16,7 +16,6 @@ #include #include #include "asm/types.h" -#include "user.h" #include "ubd_user.h" #include "os.h" #include "cow.h" diff --git a/arch/um/drivers/umcast_user.c b/arch/um/drivers/umcast_user.c index 59c56fd6f52a..010fa2d849ec 100644 --- a/arch/um/drivers/umcast_user.c +++ b/arch/um/drivers/umcast_user.c @@ -15,11 +15,9 @@ #include #include #include -#include "kern_constants.h" #include "umcast.h" #include "net_user.h" #include "um_malloc.h" -#include "user.h" static struct sockaddr_in *new_addr(char *addr, unsigned short port) { diff --git a/arch/um/drivers/vde_user.c b/arch/um/drivers/vde_user.c index c5c43253e6ce..b8c286748d3d 100644 --- a/arch/um/drivers/vde_user.c +++ b/arch/um/drivers/vde_user.c @@ -6,10 +6,8 @@ #include #include #include -#include "kern_constants.h" #include "net_user.h" #include "um_malloc.h" -#include "user.h" #include "vde.h" static int vde_user_init(void *data, void *dev) diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c index 2e1de5728604..969110e56487 100644 --- a/arch/um/drivers/xterm.c +++ b/arch/um/drivers/xterm.c @@ -11,10 +11,8 @@ #include #include #include "chan_user.h" -#include "kern_constants.h" #include "os.h" #include "um_malloc.h" -#include "user.h" #include "xterm.h" struct xterm_chan { -- cgit v1.2.3 From dbddc51bc8557525bcc51ad8f4e1626e5f586ebc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:07:19 +0100 Subject: um: don't include kern.h unless it's needed Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/ssl.c | 1 - arch/um/drivers/ubd_kern.c | 1 - 2 files changed, 2 deletions(-) (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index f1786e64607f..678e205adf29 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -15,7 +15,6 @@ #include "line.h" #include "ssl.h" #include "chan_kern.h" -#include "kern.h" #include "init.h" #include "irq_user.h" #include "mconsole_kern.h" diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 620f5b70957d..0136be194e18 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -46,7 +46,6 @@ #include "asm/tlbflush.h" #include "mem_user.h" #include "kern_util.h" -#include "kern.h" #include "mconsole_kern.h" #include "init.h" #include "irq_user.h" -- cgit v1.2.3 From 0a9e70b1cd0f7ee82a65d19edfcd31664ef65f69 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:08:09 +0100 Subject: um: kill shared/mem_kern.h ... nothing declared there exists Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/ubd_kern.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 0136be194e18..b3c854523e6c 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -53,7 +53,6 @@ #include "ubd_user.h" #include "os.h" #include "mem.h" -#include "mem_kern.h" #include "cow.h" enum ubd_req { UBD_READ, UBD_WRITE }; -- cgit v1.2.3 From 17e052093bcd21eaf9eb6e792cd76fdc4f0e3505 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:08:19 +0100 Subject: um: take register_winch_irq() into the caller of is_skas_winch() Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/chan_user.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 7ed06a7399d5..f180813ce2c7 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -281,7 +281,12 @@ void register_winch(int fd, struct tty_struct *tty) return; pid = tcgetpgrp(fd); - if (!is_skas_winch(pid, fd, tty) && (pid == -1)) { + if (is_skas_winch(pid, fd, tty)) { + register_winch_irq(-1, fd, -1, tty, 0); + return; + } + + if (pid == -1) { thread = winch_tramp(fd, tty, &thread_fd, &stack); if (thread < 0) return; -- cgit v1.2.3 From 510c72a3cf51c9463db64eb6c21347f4940a202f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:08:29 +0100 Subject: um: take chan_*.h and line.h to arch/um/drivers Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/chan.h | 50 +++++++++++++++++++ arch/um/drivers/chan_kern.c | 2 +- arch/um/drivers/chan_user.h | 55 +++++++++++++++++++++ arch/um/drivers/line.c | 2 +- arch/um/drivers/line.h | 106 ++++++++++++++++++++++++++++++++++++++++ arch/um/drivers/ssl.c | 3 +- arch/um/drivers/stdio_console.c | 3 +- 7 files changed, 215 insertions(+), 6 deletions(-) create mode 100644 arch/um/drivers/chan.h create mode 100644 arch/um/drivers/chan_user.h create mode 100644 arch/um/drivers/line.h (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/chan.h b/arch/um/drivers/chan.h new file mode 100644 index 000000000000..8df0fd9024dc --- /dev/null +++ b/arch/um/drivers/chan.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __CHAN_KERN_H__ +#define __CHAN_KERN_H__ + +#include +#include +#include +#include "chan_user.h" +#include "line.h" + +struct chan { + struct list_head list; + struct list_head free_list; + struct line *line; + char *dev; + unsigned int primary:1; + unsigned int input:1; + unsigned int output:1; + unsigned int opened:1; + unsigned int enabled:1; + int fd; + const struct chan_ops *ops; + void *data; +}; + +extern void chan_interrupt(struct list_head *chans, struct delayed_work *task, + struct tty_struct *tty, int irq); +extern int parse_chan_pair(char *str, struct line *line, int device, + const struct chan_opts *opts, char **error_out); +extern int write_chan(struct list_head *chans, const char *buf, int len, + int write_irq); +extern int console_write_chan(struct list_head *chans, const char *buf, + int len); +extern int console_open_chan(struct line *line, struct console *co); +extern void deactivate_chan(struct list_head *chans, int irq); +extern void reactivate_chan(struct list_head *chans, int irq); +extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty); +extern int enable_chan(struct line *line); +extern void close_chan(struct list_head *chans, int delay_free_irq); +extern int chan_window_size(struct list_head *chans, + unsigned short *rows_out, + unsigned short *cols_out); +extern int chan_config_string(struct list_head *chans, char *str, int size, + char **error_out); + +#endif diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index d4191fe1cede..e0406832df89 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -6,7 +6,7 @@ #include #include #include -#include "chan_kern.h" +#include "chan.h" #include "os.h" #ifdef CONFIG_NOCONFIG_CHAN diff --git a/arch/um/drivers/chan_user.h b/arch/um/drivers/chan_user.h new file mode 100644 index 000000000000..9b9ced85b703 --- /dev/null +++ b/arch/um/drivers/chan_user.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __CHAN_USER_H__ +#define __CHAN_USER_H__ + +#include "init.h" + +struct chan_opts { + void (*const announce)(char *dev_name, int dev); + char *xterm_title; + const int raw; +}; + +enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE }; + +struct chan_ops { + char *type; + void *(*init)(char *, int, const struct chan_opts *); + int (*open)(int, int, int, void *, char **); + void (*close)(int, void *); + int (*read)(int, char *, void *); + int (*write)(int, const char *, int, void *); + int (*console_write)(int, const char *, int); + int (*window_size)(int, void *, unsigned short *, unsigned short *); + void (*free)(void *); + int winch; +}; + +extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, + tty_ops, xterm_ops; + +extern void generic_close(int fd, void *unused); +extern int generic_read(int fd, char *c_out, void *unused); +extern int generic_write(int fd, const char *buf, int n, void *unused); +extern int generic_console_write(int fd, const char *buf, int n); +extern int generic_window_size(int fd, void *unused, unsigned short *rows_out, + unsigned short *cols_out); +extern void generic_free(void *data); + +struct tty_struct; +extern void register_winch(int fd, struct tty_struct *tty); +extern void register_winch_irq(int fd, int tty_fd, int pid, + struct tty_struct *tty, unsigned long stack); + +#define __channel_help(fn, prefix) \ +__uml_help(fn, prefix "[0-9]*=\n" \ +" Attach a console or serial line to a host channel. See\n" \ +" http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \ +" description of this switch.\n\n" \ +); + +#endif diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index 364c8a15c4c3..c1cf2206b84b 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -7,7 +7,7 @@ #include "linux/kd.h" #include "linux/sched.h" #include "linux/slab.h" -#include "chan_kern.h" +#include "chan.h" #include "irq_kern.h" #include "irq_user.h" #include "kern_util.h" diff --git a/arch/um/drivers/line.h b/arch/um/drivers/line.h new file mode 100644 index 000000000000..63df3ca02ac2 --- /dev/null +++ b/arch/um/drivers/line.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __LINE_H__ +#define __LINE_H__ + +#include "linux/list.h" +#include "linux/workqueue.h" +#include "linux/tty.h" +#include "linux/interrupt.h" +#include "linux/spinlock.h" +#include "linux/mutex.h" +#include "chan_user.h" +#include "mconsole_kern.h" + +/* There's only one modifiable field in this - .mc.list */ +struct line_driver { + const char *name; + const char *device_name; + const short major; + const short minor_start; + const short type; + const short subtype; + const int read_irq; + const char *read_irq_name; + const int write_irq; + const char *write_irq_name; + struct mc_device mc; +}; + +struct line { + struct tty_struct *tty; + spinlock_t count_lock; + unsigned long count; + int valid; + + char *init_str; + int init_pri; + struct list_head chan_list; + + /*This lock is actually, mostly, local to*/ + spinlock_t lock; + int throttled; + /* Yes, this is a real circular buffer. + * XXX: And this should become a struct kfifo! + * + * buffer points to a buffer allocated on demand, of length + * LINE_BUFSIZE, head to the start of the ring, tail to the end.*/ + char *buffer; + char *head; + char *tail; + + int sigio; + struct delayed_work task; + const struct line_driver *driver; + int have_irq; +}; + +#define LINE_INIT(str, d) \ + { .count_lock = __SPIN_LOCK_UNLOCKED((str).count_lock), \ + .init_str = str, \ + .init_pri = INIT_STATIC, \ + .valid = 1, \ + .lock = __SPIN_LOCK_UNLOCKED((str).lock), \ + .driver = d } + +extern void line_close(struct tty_struct *tty, struct file * filp); +extern int line_open(struct line *lines, struct tty_struct *tty); +extern int line_setup(struct line *lines, unsigned int sizeof_lines, + char *init, char **error_out); +extern int line_write(struct tty_struct *tty, const unsigned char *buf, + int len); +extern int line_put_char(struct tty_struct *tty, unsigned char ch); +extern void line_set_termios(struct tty_struct *tty, struct ktermios * old); +extern int line_chars_in_buffer(struct tty_struct *tty); +extern void line_flush_buffer(struct tty_struct *tty); +extern void line_flush_chars(struct tty_struct *tty); +extern int line_write_room(struct tty_struct *tty); +extern int line_ioctl(struct tty_struct *tty, unsigned int cmd, + unsigned long arg); +extern void line_throttle(struct tty_struct *tty); +extern void line_unthrottle(struct tty_struct *tty); + +extern char *add_xterm_umid(char *base); +extern int line_setup_irq(int fd, int input, int output, struct line *line, + void *data); +extern void line_close_chan(struct line *line); +extern struct tty_driver *register_lines(struct line_driver *line_driver, + const struct tty_operations *driver, + struct line *lines, int nlines); +extern void lines_init(struct line *lines, int nlines, struct chan_opts *opts); +extern void close_lines(struct line *lines, int nlines); + +extern int line_config(struct line *lines, unsigned int sizeof_lines, + char *str, const struct chan_opts *opts, + char **error_out); +extern int line_id(char **str, int *start_out, int *end_out); +extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n, + char **error_out); +extern int line_get_config(char *dev, struct line *lines, + unsigned int sizeof_lines, char *str, + int size, char **error_out); + +#endif diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index 678e205adf29..9d8c20af6f80 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -12,9 +12,8 @@ #include "linux/console.h" #include "asm/termbits.h" #include "asm/irq.h" -#include "line.h" #include "ssl.h" -#include "chan_kern.h" +#include "chan.h" #include "init.h" #include "irq_user.h" #include "mconsole_kern.h" diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 49266f6108c4..088776f01908 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c @@ -20,8 +20,7 @@ #include "asm/current.h" #include "asm/irq.h" #include "stdio_console.h" -#include "line.h" -#include "chan_kern.h" +#include "chan.h" #include "irq_user.h" #include "mconsole_kern.h" #include "init.h" -- cgit v1.2.3 From ece67c8697f32699f6977d3d1ae2ae9f7892a913 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:08:39 +0100 Subject: um: take mconsole*.h to arch/um/drivers Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/mconsole.h | 98 +++++++++++++++++++++++++++++++++++++++++ arch/um/drivers/mconsole_kern.h | 52 ++++++++++++++++++++++ 2 files changed, 150 insertions(+) create mode 100644 arch/um/drivers/mconsole.h create mode 100644 arch/um/drivers/mconsole_kern.h (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/mconsole.h b/arch/um/drivers/mconsole.h new file mode 100644 index 000000000000..c139ae1d6826 --- /dev/null +++ b/arch/um/drivers/mconsole.h @@ -0,0 +1,98 @@ +/* + * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) + * Licensed under the GPL + */ + +#ifndef __MCONSOLE_H__ +#define __MCONSOLE_H__ + +#ifndef __KERNEL__ +#include +#define u32 uint32_t +#endif + +#include "sysdep/ptrace.h" + +#define MCONSOLE_MAGIC (0xcafebabe) +#define MCONSOLE_MAX_DATA (512) +#define MCONSOLE_VERSION 2 + +struct mconsole_request { + u32 magic; + u32 version; + u32 len; + char data[MCONSOLE_MAX_DATA]; +}; + +struct mconsole_reply { + u32 err; + u32 more; + u32 len; + char data[MCONSOLE_MAX_DATA]; +}; + +struct mconsole_notify { + u32 magic; + u32 version; + enum { MCONSOLE_SOCKET, MCONSOLE_PANIC, MCONSOLE_HANG, + MCONSOLE_USER_NOTIFY } type; + u32 len; + char data[MCONSOLE_MAX_DATA]; +}; + +struct mc_request; + +enum mc_context { MCONSOLE_INTR, MCONSOLE_PROC }; + +struct mconsole_command +{ + char *command; + void (*handler)(struct mc_request *req); + enum mc_context context; +}; + +struct mc_request +{ + int len; + int as_interrupt; + + int originating_fd; + unsigned int originlen; + unsigned char origin[128]; /* sockaddr_un */ + + struct mconsole_request request; + struct mconsole_command *cmd; + struct uml_pt_regs regs; +}; + +extern char mconsole_socket_name[]; + +extern int mconsole_unlink_socket(void); +extern int mconsole_reply_len(struct mc_request *req, const char *reply, + int len, int err, int more); +extern int mconsole_reply(struct mc_request *req, const char *str, int err, + int more); + +extern void mconsole_version(struct mc_request *req); +extern void mconsole_help(struct mc_request *req); +extern void mconsole_halt(struct mc_request *req); +extern void mconsole_reboot(struct mc_request *req); +extern void mconsole_config(struct mc_request *req); +extern void mconsole_remove(struct mc_request *req); +extern void mconsole_sysrq(struct mc_request *req); +extern void mconsole_cad(struct mc_request *req); +extern void mconsole_stop(struct mc_request *req); +extern void mconsole_go(struct mc_request *req); +extern void mconsole_log(struct mc_request *req); +extern void mconsole_proc(struct mc_request *req); +extern void mconsole_stack(struct mc_request *req); + +extern int mconsole_get_request(int fd, struct mc_request *req); +extern int mconsole_notify(char *sock_name, int type, const void *data, + int len); +extern char *mconsole_notify_socket(void); +extern void lock_notify(void); +extern void unlock_notify(void); + +#endif diff --git a/arch/um/drivers/mconsole_kern.h b/arch/um/drivers/mconsole_kern.h new file mode 100644 index 000000000000..d2fe07e78958 --- /dev/null +++ b/arch/um/drivers/mconsole_kern.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __MCONSOLE_KERN_H__ +#define __MCONSOLE_KERN_H__ + +#include "linux/list.h" +#include "mconsole.h" + +struct mconsole_entry { + struct list_head list; + struct mc_request request; +}; + +/* All these methods are called in process context. */ +struct mc_device { + struct list_head list; + char *name; + int (*config)(char *, char **); + int (*get_config)(char *, char *, int, char **); + int (*id)(char **, int *, int *); + int (*remove)(int, char **); +}; + +#define CONFIG_CHUNK(str, size, current, chunk, end) \ +do { \ + current += strlen(chunk); \ + if(current >= size) \ + str = NULL; \ + if(str != NULL){ \ + strcpy(str, chunk); \ + str += strlen(chunk); \ + } \ + if(end) \ + current++; \ +} while(0) + +#ifdef CONFIG_MCONSOLE + +extern void mconsole_register_dev(struct mc_device *new); + +#else + +static inline void mconsole_register_dev(struct mc_device *new) +{ +} + +#endif + +#endif -- cgit v1.2.3 From c506c0e4a730b436b082fa398ec1d8ae9433b2eb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:10:59 +0100 Subject: um: take ubd_user.h to its users... Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/ubd_user.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 arch/um/drivers/ubd_user.h (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/ubd_user.h b/arch/um/drivers/ubd_user.h new file mode 100644 index 000000000000..3845051f1b10 --- /dev/null +++ b/arch/um/drivers/ubd_user.h @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2001 RidgeRun, Inc (glonnon@ridgerun.com) + * Licensed under the GPL + */ + +#ifndef __UM_UBD_USER_H +#define __UM_UBD_USER_H + +extern void ignore_sigwinch_sig(void); +extern int start_io_thread(unsigned long sp, int *fds_out); +extern int io_thread(void *arg); +extern int kernel_fd; + +#endif + -- cgit v1.2.3 From 772bd0a5a5ebfd37186df086c0f51f676495c4d9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 18 Aug 2011 20:12:39 +0100 Subject: um: kill useless argument of free_chan() and free_one_chan() delay_free_irq is always 0 for those... Signed-off-by: Al Viro Signed-off-by: Richard Weinberger --- arch/um/drivers/chan_kern.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index e0406832df89..420e2c800799 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -358,11 +358,11 @@ int chan_window_size(struct list_head *chans, unsigned short *rows_out, return 0; } -static void free_one_chan(struct chan *chan, int delay_free_irq) +static void free_one_chan(struct chan *chan) { list_del(&chan->list); - close_one_chan(chan, delay_free_irq); + close_one_chan(chan, 0); if (chan->ops->free != NULL) (*chan->ops->free)(chan->data); @@ -372,14 +372,14 @@ static void free_one_chan(struct chan *chan, int delay_free_irq) kfree(chan); } -static void free_chan(struct list_head *chans, int delay_free_irq) +static void free_chan(struct list_head *chans) { struct list_head *ele, *next; struct chan *chan; list_for_each_safe(ele, next, chans) { chan = list_entry(ele, struct chan, list); - free_one_chan(chan, delay_free_irq); + free_one_chan(chan); } } @@ -547,7 +547,7 @@ int parse_chan_pair(char *str, struct line *line, int device, char *in, *out; if (!list_empty(chans)) { - free_chan(chans, 0); + free_chan(chans); INIT_LIST_HEAD(chans); } -- cgit v1.2.3 From 8535639810e578960233ad39def3ac2157b0c3ec Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Wed, 2 Nov 2011 13:17:27 +0100 Subject: um: fix ubd cow size ubd_file_size() cannot use ubd_dev->cow.file because at this time ubd_dev->cow.file is not initialized. Therefore, ubd_file_size() will always report a wrong disk size when COW files are used. Reading from /dev/ubd* would crash the kernel. We have to read the correct disk size from the COW file's backing file. Signed-off-by: Richard Weinberger CC: stable@kernel.org --- arch/um/drivers/ubd_kern.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) (limited to 'arch/um/drivers') diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index b3c854523e6c..944453a3ec99 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -511,8 +511,37 @@ __uml_exitcall(kill_io_thread); static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out) { char *file; + int fd; + int err; + + __u32 version; + __u32 align; + char *backing_file; + time_t mtime; + unsigned long long size; + int sector_size; + int bitmap_offset; + + if (ubd_dev->file && ubd_dev->cow.file) { + file = ubd_dev->cow.file; + + goto out; + } - file = ubd_dev->cow.file ? ubd_dev->cow.file : ubd_dev->file; + fd = os_open_file(ubd_dev->file, global_openflags, 0); + if (fd < 0) + return fd; + + err = read_cow_header(file_reader, &fd, &version, &backing_file, \ + &mtime, &size, §or_size, &align, &bitmap_offset); + os_close_file(fd); + + if(err == -EINVAL) + file = ubd_dev->file; + else + file = backing_file; + +out: return os_file_size(file, size_out); } -- cgit v1.2.3