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https://github.com/EnderIce2/Fennix.git
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EnderIce2
557c7e6235
This is the fourth time re-writing the VFS, hope this will be the last. Tried to make it as modular as possible so this won't be necessary in the future. 🙏
This change required the entire kernel code to be modified.
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <fs/ramfs.hpp>
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#include "../../kernel.h"
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#include <fs/ustar.hpp>
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#include <ini.h>
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namespace Subsystem::Linux
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{
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bool Initialized = false;
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void __CreateStubRoot()
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{
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Node root = fs->GetRoot(0);
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Node nmnt = fs->Lookup(root, "/mnt");
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assert(MountAndRootRAMFS(nmnt, "linux", 1));
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Node linux = fs->GetRoot(1);
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Node bin = fs->Create(linux, "bin", 0755);
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Node boot = fs->Create(linux, "boot", 0755);
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Node dev = fs->Create(linux, "dev", 0755);
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Node etc = fs->Create(linux, "etc", 0755);
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Node home = fs->Create(linux, "home", 0755);
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Node lib = fs->Create(linux, "lib", 0755);
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Node lib64 = fs->Create(linux, "lib64", 0755);
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Node media = fs->Create(linux, "media", 0755);
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Node mnt = fs->Create(linux, "mnt", 0755);
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Node opt = fs->Create(linux, "opt", 0755);
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Node proc = fs->Create(linux, "proc", 0755);
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UNUSED(bin);
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UNUSED(boot);
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UNUSED(dev);
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UNUSED(etc);
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UNUSED(home);
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UNUSED(lib);
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UNUSED(lib64);
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UNUSED(media);
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UNUSED(mnt);
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UNUSED(opt);
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UNUSED(proc);
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}
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void InitializeSubSystem()
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{
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if (fs->RootExists(1) == false)
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{
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Node root = fs->GetRoot(0);
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Node cfg = fs->Lookup(root, "/sys/cfg/subsystem/linux");
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if (cfg)
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{
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struct kstat st;
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fs->Stat(cfg, &st);
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std::unique_ptr<char[]> buf(new char[st.Size]);
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fs->Read(cfg, buf.get(), st.Size, 0);
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ini_t *ini = ini_load(buf.get(), NULL);
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int section = ini_find_section(ini, "rootfs", NULL);
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int pathIdx = ini_find_property(ini, section, "path", NULL);
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const char *uPath = ini_property_value(ini, section, pathIdx);
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debug("path=%s", uPath);
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ini_destroy(ini);
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if (fs->Lookup(root, uPath) != false)
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{
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root = fs->Lookup(root, uPath);
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// if (TestAndInitializeUSTAR(moduleAddress, moduleSize, 0))
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// {
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// }
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}
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else
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{
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warn("Couldn't find rootfs path %s", uPath);
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__CreateStubRoot();
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}
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}
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else
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{
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warn("Couldn't open /sys/cfg/subsystem/linux");
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__CreateStubRoot();
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}
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}
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}
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}
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