Setup project skeleton

8 files changed, 431 insertions, 0 deletions

diff --git a/src/bin/private_include/bin/mod.h b/src/bin/private_include/bin/mod.h
new file mode 100644
index 0000000..13ef55c
--- /dev/null
+++ b/src/bin/private_include/bin/mod.h
@@ -0,0 +1,39 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_MOD_H
+#define BIN_MOD_H
+
+#include <bin/types.h>
+#include <nanowasm/nw.h>
+#include <stddef.h>
+
+const struct bin_mod *bin_mod(const char *path);
+int bin_mod_lock(struct bin_mod *m);
+int bin_mod_unlock(struct bin_mod *m);
+int bin_mod_move(struct bin_mod *m, struct bin *from, struct bin *to);
+void bin_mod_free(struct bin_mod *m);
+int bin_mod_read(void *buf, size_t n, void *user);
+int bin_mod_eof(void *user);
+enum nw_state bin_mod_pc(long offset, struct nw_next *next, void *user);
+enum nw_state bin_mod_seek(long offset, void *user);
+enum nw_state bin_mod_tell(long *offset, void *user);
+
+extern const struct nw_mod_cfg bin_mod_cfg;
+
+#endif
diff --git a/src/bin/private_include/bin/proc.h b/src/bin/private_include/bin/proc.h
new file mode 100644
index 0000000..cf0c04e
--- /dev/null
+++ b/src/bin/private_include/bin/proc.h
@@ -0,0 +1,49 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_PROC_H
+#define BIN_PROC_H
+
+#include <bin/types.h>
+#include <nanowasm/nw.h>
+#include <stddef.h>
+
+int bin_proc_init(struct bin_proc *p);
+int bin_proc_add(struct bin_proc *p);
+void bin_proc_free(struct bin_proc *p);
+int bin_proc_read(void *buf, size_t n, void *user);
+int bin_proc_eof(void *user);
+enum nw_state bin_proc_pc(long offset, struct nw_next *next, void *user);
+enum nw_state bin_proc_seek(long offset, void *user);
+enum nw_state bin_proc_tell(long *offset, void *user);
+int bin_proc_lock(struct bin_proc *p);
+int bin_proc_unlock(struct bin_proc *p);
+int bin_proc_move(struct bin_proc *p, struct bin *from, struct bin *to);
+int bin_proc_l_load(unsigned long pos, void *dst, size_t n, void *user);
+int bin_proc_l_store(unsigned long pos, const void *src, size_t n, void *user);
+int bin_proc_g_load(unsigned long pos, void *dst, size_t n, void *user);
+int bin_proc_g_store(unsigned long pos, const void *src, size_t n, void *user);
+int bin_proc_s_push(const void *src, size_t n, void *user);
+int bin_proc_s_pop(void *dst, size_t n, void *user);
+int bin_proc_s_read(size_t offset, void *dst, size_t n, void *user);
+int bin_proc_s_write(size_t offset, const void *dst, size_t n, void *user);
+size_t bin_proc_s_ptr(void *user);
+
+extern const struct nw_inst_cfg bin_proc_cfg;
+
+#endif
diff --git a/src/bin/private_include/bin/routines.h b/src/bin/private_include/bin/routines.h
new file mode 100644
index 0000000..c78ad18
--- /dev/null
+++ b/src/bin/private_include/bin/routines.h
@@ -0,0 +1,32 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_ROUTINES_H
+#define BIN_ROUTINES_H
+
+#include <bin/types.h>
+#include <sys/types.h>
+#include <stdbool.h>
+
+pid_t bin_pid(void);
+int bin_start(struct bin_mod *m);
+int bin_stop(struct bin_proc *p);
+int bin_load(struct bin_mod *m);
+int bin_unload(struct bin_mod *m);
+
+#endif
diff --git a/src/bin/private_include/bin/types.h b/src/bin/private_include/bin/types.h
new file mode 100644
index 0000000..2a498ed
--- /dev/null
+++ b/src/bin/private_include/bin/types.h
@@ -0,0 +1,99 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_TYPES_H
+#define BIN_TYPES_H
+
+#include <bin/wasi.h>
+#include <caio.h>
+#include <fs/fs.h>
+#include <dynstr.h>
+#include <nanowasm/nw.h>
+#include <nanowasm/dbg.h>
+#include <sys/types.h>
+#include <stdbool.h>
+
+enum {BIN_IMPORTS = 9};
+
+struct bin_dbg
+{
+    char b;
+    bool running, step;
+    struct nw_dbg dbg;
+    struct dynstr dstr;
+    struct aio *aio;
+    struct fs_fd fd;
+    long *bkpt, offset;
+    size_t n_bkpt;
+};
+
+struct bin_stack
+{
+    struct page *page;
+    size_t sz, pi, n;
+};
+
+struct bin_global
+{
+    void *buf;
+    size_t sz;
+};
+
+struct bin_proc
+{
+    const struct bin_mod *mod;
+    struct nw_inst instance;
+    union nw_value args[7];
+    struct bin_dbg dbg;
+    struct caio *caio;
+    char *path, **argv;
+    size_t argc;
+    pid_t pid;
+    uid_t uid;
+    gid_t gid;
+    char header[sizeof "asm"];
+    size_t i;
+    long retval;
+    struct bin_stack stack;
+    struct bin_global global;
+    void *import;
+    struct page *linear;
+    int *fds;
+    size_t n_fds;
+    struct bin_proc *prev, *next;
+};
+
+struct bin_mod
+{
+    char *path;
+    struct caio *caio;
+    struct nw_mod mod;
+    struct nw_mod_out mod_out;
+    struct nw_import_index import_indexes[BIN_IMPORTS];
+    struct bin_mod *prev, *next;
+};
+
+struct bin
+{
+    struct bin_mod *mod_head, *mod_tail;
+    struct bin_proc *proc_head, *proc_tail;
+};
+
+extern struct bin bin_active, bin_pending, bin_locked, bin_zombie;
+
+#endif
diff --git a/src/bin/private_include/bin/wasi.h b/src/bin/private_include/bin/wasi.h
new file mode 100644
index 0000000..c22c777
--- /dev/null
+++ b/src/bin/private_include/bin/wasi.h
@@ -0,0 +1,41 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_WASI_H
+#define BIN_WASI_H
+
+#include <nanowasm/nw.h>
+
+enum nw_state bin_wasi_proc_exit(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_fd_prestat_get(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_fd_prestat_dir_name(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_path_create_directory(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_fd_close(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_fd_fdstat_get(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_fd_seek(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wasi_fd_write(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+
+#endif
diff --git a/src/bin/private_include/bin/wasi/errno.h b/src/bin/private_include/bin/wasi/errno.h
new file mode 100644
index 0000000..442e877
--- /dev/null
+++ b/src/bin/private_include/bin/wasi/errno.h
@@ -0,0 +1,105 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef WASI_ERRNO_H
+#define WASI_ERRNO_H
+
+enum wasi_errno
+{
+    WASI_SUCCESS,
+    WASI_2BIG,
+    WASI_ACCES,
+    WASI_ADDRINUSE,
+    WASI_ADDRNOTAVAIL,
+    WASI_AFNOSUPPORT,
+    WASI_AGAIN,
+    WASI_ALREADY,
+    WASI_BADF,
+    WASI_BADMSG,
+    WASI_BUSY,
+    WASI_CANCELED,
+    WASI_CHILD,
+    WASI_CONNABORTED,
+    WASI_CONNREFUSED,
+    WASI_CONNRESET,
+    WASI_DEADLK,
+    WASI_DESTADDRREQ,
+    WASI_DOM,
+    WASI_DQUOT,
+    WASI_EXIST,
+    WASI_FAULT,
+    WASI_FBIG,
+    WASI_HOSTUNREACH,
+    WASI_IDRM,
+    WASI_ILSEQ,
+    WASI_INPROGRESS,
+    WASI_INTR,
+    WASI_INVAL,
+    WASI_IO,
+    WASI_ISCONN,
+    WASI_ISDIR,
+    WASI_LOOP,
+    WASI_MFILE,
+    WASI_MLINK,
+    WASI_MSGSIZE,
+    WASI_MULTIHOP,
+    WASI_NAMETOOLONG,
+    WASI_NETDOWN,
+    WASI_NETRESET,
+    WASI_NETUNREACH,
+    WASI_NFILE,
+    WASI_NOBUFS,
+    WASI_NODEV,
+    WASI_NOENT,
+    WASI_NOEXEC,
+    WASI_NOLCK,
+    WASI_NOLINK,
+    WASI_NOMEM,
+    WASI_NOMSG,
+    WASI_NOPROTOOPT,
+    WASI_NOSPC,
+    WASI_NOSYS,
+    WASI_NOTCONN,
+    WASI_NOTDIR,
+    WASI_NOTEMPTY,
+    WASI_NOTRECOVERABLE,
+    WASI_NOTSOCK,
+    WASI_NOTSUP,
+    WASI_NOTTY,
+    WASI_NXIO,
+    WASI_OVERFLOW,
+    WASI_OWNERDEAD,
+    WASI_PERM,
+    WASI_PIPE,
+    WASI_PROTO,
+    WASI_PROTONOSUPPORT,
+    WASI_PROTOTYPE,
+    WASI_RANGE,
+    WASI_ROFS,
+    WASI_SPIPE,
+    WASI_SRCH,
+    WASI_STALE,
+    WASI_TIMEDOUT,
+    WASI_TXTBSY,
+    WASI_XDEV,
+    WASI_NOTCAPABLE
+};
+
+int wasi_errno(int error, enum wasi_errno *out);
+
+#endif
diff --git a/src/bin/private_include/bin/wnix.h b/src/bin/private_include/bin/wnix.h
new file mode 100644
index 0000000..07e7131
--- /dev/null
+++ b/src/bin/private_include/bin/wnix.h
@@ -0,0 +1,37 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_WNIX_H
+#define BIN_WNIX_H
+
+#include <nanowasm/nw.h>
+
+enum nw_state bin_wnix_exit(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wnix_argc(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wnix_arglen(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wnix_argcopy(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wnix_mkdir(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+enum nw_state bin_wnix_mount(const union nw_value *params,
+    union nw_value *ret, void *user, struct nw_next *next);
+
+#endif
diff --git a/src/bin/private_include/bin/wnix/routines.h b/src/bin/private_include/bin/wnix/routines.h
new file mode 100644
index 0000000..aa488fb
--- /dev/null
+++ b/src/bin/private_include/bin/wnix/routines.h
@@ -0,0 +1,29 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BIN_WNIX_ROUTINES_H
+#define BIN_WNIX_ROUTINES_H
+
+#include <bin.h>
+#include <bin/types.h>
+#include <nanowasm/nw.h>
+
+int bin_wnix_set_errno(struct bin_proc *p, int error, unsigned long addr,
+    struct nw_next *next);
+
+#endif