mirror of
https://github.com/ish-app/ish.git
synced 2026-01-18 13:57:29 +00:00
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
#include <signal.h>
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#include <string.h>
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#include <sys/stat.h>
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#include "kernel/init.h"
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#include "kernel/calls.h"
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#include "fs/fd.h"
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#include "fs/tty.h"
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int mount_root(const struct fs_ops *fs, const char *source) {
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char source_realpath[MAX_PATH + 1];
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if (realpath(source, source_realpath) == NULL)
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return errno_map();
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mounts = malloc(sizeof(struct mount));
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mounts->point = "";
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mounts->source = strdup(source_realpath);
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mounts->fs = fs;
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mounts->next = NULL;
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mounts->data = NULL;
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if (fs->mount) {
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int err = fs->mount(mounts);
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if (err < 0)
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return err;
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}
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return 0;
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}
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static void nop_handler() {}
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static struct tgroup *init_tgroup() {
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struct tgroup *group = malloc(sizeof(struct tgroup));
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if (group == NULL)
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return NULL;
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*group = (struct tgroup) {};
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list_init(&group->threads);
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lock_init(&group->lock);
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pthread_cond_init(&group->child_exit, NULL);
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return group;
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}
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void create_first_process() {
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signal(SIGUSR1, nop_handler);
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signal(SIGPIPE, SIG_IGN);
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current = task_create(NULL);
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current->cpu.mem = mem_new();
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struct tgroup *group = init_tgroup();
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list_add(&group->threads, ¤t->group_links);
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group->leader = current;
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current->group = group;
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current->tgid = current->pid;
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struct fs_info *fs = fs_info_new();
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current->fs = fs;
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fs->pwd = fs->root = generic_open("/", O_RDONLY_, 0);
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fs->pwd->refcount = 2;
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fs->umask = 0022;
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current->files = fdtable_new(3);
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current->sighand = sighand_new();
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for (int i = 0; i < RLIMIT_NLIMITS_; i++)
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current->group->limits[i].cur = current->group->limits[i].max = RLIM_INFINITY_;
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current->thread = pthread_self();
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sys_setsid();
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}
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int create_stdio(struct tty_driver driver) {
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// I can't wait for when init and udev works and I don't need to do this
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tty_drivers[TTY_VIRTUAL] = driver;
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// FIXME use generic_open (or something) to avoid this mess
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struct fd *fd = adhoc_fd_create();
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fd->stat->rdev = dev_make(4, 0);
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fd->stat->mode = S_IFCHR | S_IRUSR;
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int err = dev_open(4, 0, DEV_CHAR, fd);
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if (err < 0)
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return err;
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fd->refcount = 3;
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current->files->files[0] = fd;
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current->files->files[1] = fd;
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current->files->files[2] = fd;
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return 0;
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}
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