Setup project skeleton

15 files changed, 473 insertions, 0 deletions

diff --git a/src/net/CMakeLists.txt b/src/net/CMakeLists.txt
new file mode 100644
index 0000000..e0822e7
--- /dev/null
+++ b/src/net/CMakeLists.txt
@@ -0,0 +1,20 @@
+# 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/>.
+
+add_library(net)
+add_subdirectory(src)
+target_include_directories(net PUBLIC include PRIVATE private_include)
+target_link_libraries(net PRIVATE aio loop state wip)
diff --git a/src/net/include/net.h b/src/net/include/net.h
new file mode 100644
index 0000000..0ae9dc1
--- /dev/null
+++ b/src/net/include/net.h
@@ -0,0 +1,26 @@
+/*
+ * 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 NET_H
+#define NET_H
+
+int net_init(const char *dev);
+int net_update(void);
+int net_shutdown(void);
+
+#endif
diff --git a/src/net/private_include/net/ops.h b/src/net/private_include/net/ops.h
new file mode 100644
index 0000000..abeea39
--- /dev/null
+++ b/src/net/private_include/net/ops.h
@@ -0,0 +1,30 @@
+/*
+ * 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 NET_OPS_H
+#define NET_OPS_H
+
+#include <stddef.h>
+
+void *net_alloc(size_t n, void *user);
+void *net_realloc(void *, size_t n, void *user);
+void net_free(void *p, void *user);
+int net_read(void *buf, size_t n, void *user);
+int net_write(const void *buf, size_t n, void *user);
+
+#endif
diff --git a/src/net/private_include/net/types.h b/src/net/private_include/net/types.h
new file mode 100644
index 0000000..eab5843
--- /dev/null
+++ b/src/net/private_include/net/types.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 NET_TYPES_H
+#define NET_TYPES_H
+
+#include <aio.h>
+#include <fs/fs.h>
+#include <wip/wip.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+struct net
+{
+    bool init;
+    size_t available;
+    struct aio *aio;
+    struct wip w;
+    struct fs_fd fd;
+};
+
+extern struct net net;
+
+#endif
diff --git a/src/net/src/CMakeLists.txt b/src/net/src/CMakeLists.txt
new file mode 100644
index 0000000..c011446
--- /dev/null
+++ b/src/net/src/CMakeLists.txt
@@ -0,0 +1,24 @@
+# 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/>.
+
+target_sources(net PRIVATE
+    init.c
+    net.c
+    shutdown.c
+    update.c
+)
+
+add_subdirectory(ops)
diff --git a/src/net/src/init.c b/src/net/src/init.c
new file mode 100644
index 0000000..9e66981
--- /dev/null
+++ b/src/net/src/init.c
@@ -0,0 +1,78 @@
+/*
+ * 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/>.
+ */
+
+#include <net.h>
+#include <net/ops.h>
+#include <net/types.h>
+#include <aio.h>
+#include <loop.h>
+#include <wip/wip.h>
+#include <fcntl.h>
+#include <stdbool.h>
+
+static int open_done(const enum state state, void *const args)
+{
+    struct net *const n = &net;
+
+    if (loop_rm_aio(n->aio))
+        return -1;
+
+    aio_free(n->aio);
+    n->aio = NULL;
+    n->init = true;
+    return 0;
+}
+
+int net_init(const char *const dev)
+{
+    struct net *const n = &net;
+    struct aio *aio = NULL;
+    const struct wip_cfg cfg =
+    {
+        .alloc = net_alloc,
+        .realloc = net_realloc,
+        .free = net_free,
+        .read = net_read,
+        .write = net_write,
+        .user = n
+    };
+
+    const struct fs_open op =
+    {
+        .path = dev,
+        .fd = &n->fd,
+        .flags = O_RDWR
+    };
+
+    const struct aio_done d =
+    {
+        .f = open_done,
+        .args = n
+    };
+
+    if (!(aio = aio_open(&op, &d)) || loop_add_aio(aio))
+        goto failure;
+
+    *n = (const struct net){.aio = aio};
+    wip_init(&n->w, &cfg);
+    return 0;
+
+failure:
+    aio_free(aio);
+    return -1;
+}
diff --git a/src/net/src/net.c b/src/net/src/net.c
new file mode 100644
index 0000000..b2dbd1a
--- /dev/null
+++ b/src/net/src/net.c
@@ -0,0 +1,22 @@
+/*
+ * 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/>.
+ */
+
+#include <net.h>
+#include <net/types.h>
+
+struct net net;
diff --git a/src/net/src/ops/CMakeLists.txt b/src/net/src/ops/CMakeLists.txt
new file mode 100644
index 0000000..40d4490
--- /dev/null
+++ b/src/net/src/ops/CMakeLists.txt
@@ -0,0 +1,23 @@
+# 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/>.
+
+target_sources(net PRIVATE
+    alloc.c
+    free.c
+    read.c
+    realloc.c
+    write.c
+)
diff --git a/src/net/src/ops/alloc.c b/src/net/src/ops/alloc.c
new file mode 100644
index 0000000..6152a92
--- /dev/null
+++ b/src/net/src/ops/alloc.c
@@ -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/>.
+ */
+
+#include <net.h>
+#include <net/ops.h>
+#include <net/types.h>
+#include <wip/wip.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+void *net_alloc(const size_t n, void *const user)
+{
+    return malloc(n);
+}
diff --git a/src/net/src/ops/free.c b/src/net/src/ops/free.c
new file mode 100644
index 0000000..0f1f63b
--- /dev/null
+++ b/src/net/src/ops/free.c
@@ -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/>.
+ */
+
+#include <net.h>
+#include <net/ops.h>
+#include <net/types.h>
+#include <wip/wip.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+void net_free(void *const p, void *const user)
+{
+    free(p);
+}
diff --git a/src/net/src/ops/read.c b/src/net/src/ops/read.c
new file mode 100644
index 0000000..1fca206
--- /dev/null
+++ b/src/net/src/ops/read.c
@@ -0,0 +1,38 @@
+/*
+ * 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/>.
+ */
+
+#include <net.h>
+#include <net/ops.h>
+#include <net/types.h>
+#include <aio.h>
+#include <loop.h>
+#include <wip/wip.h>
+#include <stddef.h>
+
+int net_read(void *const buf, const size_t n, void *const user)
+{
+    struct net *const net = user;
+    const struct fs_read r =
+    {
+        .fd = &net->fd,
+        .buf = buf,
+        .n = n
+    };
+
+    return aio_read_nb(&r);
+}
diff --git a/src/net/src/ops/realloc.c b/src/net/src/ops/realloc.c
new file mode 100644
index 0000000..329cbe5
--- /dev/null
+++ b/src/net/src/ops/realloc.c
@@ -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/>.
+ */
+
+#include <net.h>
+#include <net/ops.h>
+#include <net/types.h>
+#include <wip/wip.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+void *net_realloc(void *const p, const size_t n, void *const user)
+{
+    return realloc(p, n);
+}
diff --git a/src/net/src/ops/write.c b/src/net/src/ops/write.c
new file mode 100644
index 0000000..2bf9093
--- /dev/null
+++ b/src/net/src/ops/write.c
@@ -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/>.
+ */
+
+#include <net.h>
+#include <net/ops.h>
+#include <net/types.h>
+#include <wip/wip.h>
+#include <stddef.h>
+
+int net_write(const void *const buf, const size_t n, void *const user)
+{
+    /* TODO */
+    return -1;
+}
diff --git a/src/net/src/shutdown.c b/src/net/src/shutdown.c
new file mode 100644
index 0000000..b815e2c
--- /dev/null
+++ b/src/net/src/shutdown.c
@@ -0,0 +1,26 @@
+/*
+ * 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/>.
+ */
+
+#include <net.h>
+#include <net/types.h>
+#include <wip/wip.h>
+
+int net_shutdown(void)
+{
+    return -1;
+}
diff --git a/src/net/src/update.c b/src/net/src/update.c
new file mode 100644
index 0000000..b7a0954
--- /dev/null
+++ b/src/net/src/update.c
@@ -0,0 +1,31 @@
+/*
+ * 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/>.
+ */
+
+#include <net.h>
+#include <net/types.h>
+#include <wip/wip.h>
+
+int net_update(void)
+{
+    struct net *const n = &net;
+
+    if (!n->init)
+        return 0;
+
+    return wip_run(&n->w) == WIP_FATAL ? -1 : 0;
+}