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console: struct lxc_terminal_state

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-02-27 18:25:41 +01:00
parent 0e4be3cf03
commit 5b55021fa9
No known key found for this signature in database
GPG Key ID: 8EB056D53EECB12D
3 changed files with 55 additions and 58 deletions
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2
src/lxc/conf.h
View File

@ -143,8 +143,6 @@ struct lxc_tty_info {
struct lxc_terminal_info *tty;
};
struct lxc_tty_state;
/* Defines a structure to store the rootfs location, the
* optionals pivot_root, rootfs mount paths
* @path : the rootfs source (directory or device)

22
src/lxc/console.c
View File

@ -88,7 +88,7 @@ void lxc_terminal_winsz(int srcfd, int dstfd)
return;
}
static void lxc_terminal_winch(struct lxc_tty_state *ts)
static void lxc_terminal_winch(struct lxc_terminal_state *ts)
{
lxc_terminal_winsz(ts->stdinfd, ts->masterfd);
@ -99,7 +99,7 @@ static void lxc_terminal_winch(struct lxc_tty_state *ts)
void lxc_terminal_sigwinch(int sig)
{
struct lxc_list *it;
struct lxc_tty_state *ts;
struct lxc_terminal_state *ts;
lxc_list_for_each(it, &lxc_ttys) {
ts = it->elem;
@ -112,7 +112,7 @@ int lxc_terminal_signalfd_cb(int fd, uint32_t events, void *cbdata,
{
ssize_t ret;
struct signalfd_siginfo siginfo;
struct lxc_tty_state *ts = cbdata;
struct lxc_terminal_state *ts = cbdata;
ret = read(fd, &siginfo, sizeof(siginfo));
if (ret < 0 || (size_t)ret < sizeof(siginfo)) {
@ -131,12 +131,12 @@ int lxc_terminal_signalfd_cb(int fd, uint32_t events, void *cbdata,
return 0;
}
struct lxc_tty_state *lxc_terminal_signal_init(int srcfd, int dstfd)
struct lxc_terminal_state *lxc_terminal_signal_init(int srcfd, int dstfd)
{
int ret;
bool istty;
sigset_t mask;
struct lxc_tty_state *ts;
struct lxc_terminal_state *ts;
ts = malloc(sizeof(*ts));
if (!ts)
@ -189,7 +189,7 @@ on_error:
return ts;
}
void lxc_terminal_signal_fini(struct lxc_tty_state *ts)
void lxc_terminal_signal_fini(struct lxc_terminal_state *ts)
{
if (ts->sigfd >= 0) {
close(ts->sigfd);
@ -527,7 +527,7 @@ static void lxc_terminal_peer_proxy_free(struct lxc_terminal *terminal)
static int lxc_terminal_peer_proxy_alloc(struct lxc_terminal *terminal, int sockfd)
{
struct termios oldtermio;
struct lxc_tty_state *ts;
struct lxc_terminal_state *ts;
int ret;
if (terminal->master < 0) {
@ -636,7 +636,7 @@ void lxc_terminal_free(struct lxc_conf *conf, int fd)
static int lxc_terminal_peer_default(struct lxc_terminal *terminal)
{
struct lxc_tty_state *ts;
struct lxc_terminal_state *ts;
const char *path = terminal->path;
int fd;
int ret = 0;
@ -930,7 +930,7 @@ int lxc_terminal_set_stdfds(int fd)
int lxc_terminal_stdin_cb(int fd, uint32_t events, void *cbdata,
struct lxc_epoll_descr *descr)
{
struct lxc_tty_state *ts = cbdata;
struct lxc_terminal_state *ts = cbdata;
char c;
if (fd != ts->stdinfd)
@ -961,7 +961,7 @@ int lxc_terminal_stdin_cb(int fd, uint32_t events, void *cbdata,
int lxc_terminal_master_cb(int fd, uint32_t events, void *cbdata,
struct lxc_epoll_descr *descr)
{
struct lxc_tty_state *ts = cbdata;
struct lxc_terminal_state *ts = cbdata;
char buf[LXC_TERMINAL_BUFFER_SIZE];
int r, w;
@ -995,7 +995,7 @@ int lxc_console(struct lxc_container *c, int ttynum,
int ret, ttyfd, masterfd;
struct lxc_epoll_descr descr;
struct termios oldtios;
struct lxc_tty_state *ts;
struct lxc_terminal_state *ts;
int istty = 0;
ttyfd = lxc_cmd_console(c->name, &ttynum, &masterfd, c->config_path);

89
src/lxc/console.h
View File

@ -32,7 +32,9 @@
#include "list.h"
#include "ringbuf.h"
struct lxc_container;
struct lxc_conf;
struct lxc_epoll_descr;
/* Defines a structure containing a pty information for virtualizing a tty
* @name : the path name of the slave pty side
@ -46,51 +48,14 @@ struct lxc_terminal_info {
int busy;
};
struct lxc_terminal {
int slave;
int master;
int peer;
struct lxc_terminal_info peerpty;
struct lxc_epoll_descr *descr;
char *path;
char name[MAXPATHLEN];
struct termios *tios;
struct lxc_tty_state *tty_state;
struct /* lxc_console_log */ {
/* size of the log file */
uint64_t log_size;
/* path to the log file */
char *log_path;
/* fd to the log file */
int log_fd;
/* whether the log file will be rotated */
unsigned int log_rotate;
};
struct /* lxc_pty_ringbuf */ {
/* size of the ringbuffer */
uint64_t buffer_size;
/* the in-memory ringbuffer */
struct lxc_ringbuf ringbuf;
};
};
struct lxc_epoll_descr; /* defined in mainloop.h */
struct lxc_container; /* defined in lxccontainer.h */
struct lxc_tty_state
{
struct lxc_terminal_state {
struct lxc_list node;
int stdinfd;
int stdoutfd;
int masterfd;
/* Escape sequence to use for exiting the pty. A single char can be
* specified. The pty can then exited by doing: Ctrl + specified_char + q.
* This field is checked by lxc_terminal_stdin_cb(). Set to -1 to
* specified. The pty can then exited by doing: Ctrl + specified_char +
* q. This field is checked by lxc_terminal_stdin_cb(). Set to -1 to
* disable exiting the pty via a escape sequence.
*/
int escape;
@ -110,6 +75,40 @@ struct lxc_tty_state
sigset_t oldmask;
};
struct lxc_terminal {
int slave;
int master;
int peer;
struct lxc_terminal_info peerpty;
struct lxc_epoll_descr *descr;
char *path;
char name[MAXPATHLEN];
struct termios *tios;
struct lxc_terminal_state *tty_state;
struct /* lxc_console_log */ {
/* size of the log file */
uint64_t log_size;
/* path to the log file */
char *log_path;
/* fd to the log file */
int log_fd;
/* whether the log file will be rotated */
unsigned int log_rotate;
};
struct /* lxc_terminal_ringbuf */ {
/* size of the ringbuffer */
uint64_t buffer_size;
/* the in-memory ringbuffer */
struct lxc_ringbuf ringbuf;
};
};
/*
* lxc_terminal_allocate: allocate the console or a tty
*
@ -239,8 +238,8 @@ extern void lxc_terminal_winsz(int srcfd, int dstfd);
* @srcfd : src for winsz in SIGWINCH handler
* @dstfd : dst for winsz in SIGWINCH handler
*
* Returns lxc_tty_state structure on success or NULL on failure. The sigfd
* member of the returned lxc_tty_state can be select()/poll()ed/epoll()ed
* Returns lxc_terminal_state structure on success or NULL on failure. The sigfd
* member of the returned lxc_terminal_state can be select()/poll()ed/epoll()ed
* on (ie added to a mainloop) for signals.
*
* Must be called with process_lock held to protect the lxc_ttys list, or
@ -255,7 +254,7 @@ extern void lxc_terminal_winsz(int srcfd, int dstfd);
*
* This function allocates memory. It is up to the caller to free it.
*/
extern struct lxc_tty_state *lxc_terminal_signal_init(int srcfd, int dstfd);
extern struct lxc_terminal_state *lxc_terminal_signal_init(int srcfd, int dstfd);
/*
* Handler for signal events. To be registered via the corresponding functions
@ -267,7 +266,7 @@ extern int lxc_terminal_signalfd_cb(int fd, uint32_t events, void *cbdata,
/*
* lxc_terminal_signal_fini: uninstall signal handler
*
* @ts : the lxc_tty_state returned by lxc_terminal_signal_init
* @ts : the lxc_terminal_state returned by lxc_terminal_signal_init
*
* Restore the saved signal handler that was in effect at the time
* lxc_terminal_signal_init() was called.
@ -275,7 +274,7 @@ extern int lxc_terminal_signalfd_cb(int fd, uint32_t events, void *cbdata,
* Must be called with process_lock held to protect the lxc_ttys list, or
* from a non-threaded context.
*/
extern void lxc_terminal_signal_fini(struct lxc_tty_state *ts);
extern void lxc_terminal_signal_fini(struct lxc_terminal_state *ts);
extern int lxc_terminal_write_ringbuffer(struct lxc_terminal *console);
extern int lxc_terminal_create_log_file(struct lxc_terminal *console);