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90b271fbd2
On mmap failure file->memory is set to -1, which we'll happily pass down to munmap later on. More importantly, since we do a NULL check in kmod_file_load_contents() we will exit the function without (re)attempting the load again. Since we ignore the return code for the load function(s), one can end up calling kmod_elf_get_memory() and feed that -1 into init_module. Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com> |
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docs | ||
.gitignore | ||
COPYING | ||
libkmod-builtin.c | ||
libkmod-config.c | ||
libkmod-elf.c | ||
libkmod-file.c | ||
libkmod-index.c | ||
libkmod-index.h | ||
libkmod-internal.h | ||
libkmod-list.c | ||
libkmod-module.c | ||
libkmod-signature.c | ||
libkmod.c | ||
libkmod.h | ||
libkmod.pc.in | ||
libkmod.sym | ||
Makefile | ||
README |
libkmod - linux kernel module handling library ABSTRACT ======== libkmod was created to allow programs to easily insert, remove and list modules, also checking its properties, dependencies and aliases. there is no shared/global context information and it can be used by multiple sites on a single program, also being able to be used from threads, although it's not thread safe (you must lock explicitly). OVERVIEW ======== Every user should create and manage it's own library context with: struct kmod_ctx *ctx = kmod_new(kernel_dirname); kmod_unref(ctx); Modules can be created by various means: struct kmod_module *mod; int err; err = kmod_module_new_from_path(ctx, path, &mod); if (err < 0) { /* code */ } else { /* code */ kmod_module_unref(mod); } err = kmod_module_new_from_name(ctx, name, &mod); if (err < 0) { /* code */ } else { /* code */ kmod_module_unref(mod); } Or could be resolved from a known alias to a list of alternatives: struct kmod_list *list, *itr; int err; err = kmod_module_new_from_lookup(ctx, alias, &list); if (err < 0) { /* code */ } else { kmod_list_foreach(itr, list) { struct kmod_module *mod = kmod_module_get_module(itr); /* code */ } }