From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1Bf3nl-0002vh-2N for user-mode-linux-devel@lists.sourceforge.net; Mon, 28 Jun 2004 14:36:33 -0700 Received: from catv-5062e6af.catv.broadband.hu ([80.98.230.175] helo=paprika.budape.st) by sc8-sf-mx2.sourceforge.net with smtp (Exim 4.34) id 1Bf3ni-0008HE-FF for user-mode-linux-devel@lists.sourceforge.net; Mon, 28 Jun 2004 14:36:32 -0700 From: Tom Rottler Message-ID: <20040628213625.GI1583@paprika.budape.st> References: <20040628213232.GH1583@paprika.budape.st> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="IS0zKkzwUGydFO0o" Content-Disposition: inline In-Reply-To: <20040628213232.GH1583@paprika.budape.st> Subject: [uml-devel] Re: host and uml kernel with grsec Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Mon, 28 Jun 2004 23:36:25 +0200 To: user-mode-linux-devel@lists.sourceforge.net --IS0zKkzwUGydFO0o Content-Type: text/plain; charset=us-ascii Content-Disposition: inline * Tom Rottler [Mon, 2004 Jun 28 23:32:32 +0200]: ... I'm sorry, I forgot to attach te file. :-( Here it is! Regards: Tom --IS0zKkzwUGydFO0o Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="host-skas3-2.4.26-grsec-2.0.patch" diff -ruN linux-2.4.26-grsec-2.0/Makefile linux-2.4.26-grsec-2.0-skas3/Makefile --- linux-2.4.26-grsec-2.0/Makefile Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/Makefile Mon Jun 28 21:35:47 2004 @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 4 SUBLEVEL = 26 -EXTRAVERSION = -grsec +EXTRAVERSION = -grsec-skas-2 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) diff -ruN linux-2.4.26-grsec-2.0/arch/i386/kernel/ldt.c linux-2.4.26-grsec-2.0-skas3/arch/i386/kernel/ldt.c --- linux-2.4.26-grsec-2.0/arch/i386/kernel/ldt.c Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/arch/i386/kernel/ldt.c Mon Jun 28 20:41:40 2004 @@ -53,7 +53,7 @@ wmb(); pc->ldt = newldt; pc->size = mincount; - if (reload) { + if (reload && (¤t->active_mm->context == pc)) { load_LDT(pc); #ifdef CONFIG_SMP if (current->mm->cpu_vm_mask != (1<context.sem); mm->context.size = 0; - old_mm = current->mm; if (old_mm && old_mm->context.size > 0) { down(&old_mm->context.sem); retval = copy_ldt(&mm->context, &old_mm->context); @@ -102,6 +100,10 @@ return retval; } +int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { + return __init_new_context(current->mm, mm); +} + /* * No need to lock the MM as we are the last user * Do not touch the ldt register, we are already @@ -118,11 +120,10 @@ } } -static int read_ldt(void * ptr, unsigned long bytecount) +static int read_ldt(struct mm_struct * mm, void * ptr, unsigned long bytecount) { int err; unsigned long size; - struct mm_struct * mm = current->mm; if (!mm->context.size) return 0; @@ -166,9 +167,8 @@ return err; } -static int write_ldt(void * ptr, unsigned long bytecount, int oldmode) +static int write_ldt(struct mm_struct * mm, void * ptr, unsigned long bytecount, int oldmode) { - struct mm_struct * mm = current->mm; __u32 entry_1, entry_2, *lp; int error; struct modify_ldt_ldt_s ldt_info; @@ -192,7 +192,7 @@ down(&mm->context.sem); if (ldt_info.entry_number >= mm->context.size) { - error = alloc_ldt(¤t->mm->context, ldt_info.entry_number+1, 1); + error = alloc_ldt(&mm->context, ldt_info.entry_number+1, 1); if (error < 0) goto out_unlock; } @@ -247,23 +247,27 @@ return error; } -asmlinkage int sys_modify_ldt(int func, void *ptr, unsigned long bytecount) +int modify_ldt(struct mm_struct * mm, int func, void *ptr, unsigned long bytecount) { int ret = -ENOSYS; switch (func) { case 0: - ret = read_ldt(ptr, bytecount); + ret = read_ldt(mm, ptr, bytecount); break; case 1: - ret = write_ldt(ptr, bytecount, 1); + ret = write_ldt(mm, ptr, bytecount, 1); break; case 2: ret = read_default_ldt(ptr, bytecount); break; case 0x11: - ret = write_ldt(ptr, bytecount, 0); + ret = write_ldt(mm, ptr, bytecount, 0); break; } return ret; +} + +asmlinkage int sys_modify_ldt(int func, void *ptr, unsigned long bytecount) { + return modify_ldt(current->mm, func, ptr, bytecount); } diff -ruN linux-2.4.26-grsec-2.0/arch/i386/kernel/ptrace.c linux-2.4.26-grsec-2.0-skas3/arch/i386/kernel/ptrace.c --- linux-2.4.26-grsec-2.0/arch/i386/kernel/ptrace.c Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/arch/i386/kernel/ptrace.c Mon Jun 28 20:41:40 2004 @@ -148,6 +148,11 @@ put_stack_long(child, EFL_OFFSET, tmp); } +extern int modify_ldt(struct mm_struct *mm, int func, void *ptr, + unsigned long bytecount); + +extern struct mm_struct *proc_mm_get_mm(int fd); + asmlinkage int sys_ptrace(long request, long pid, long addr, long data) { struct task_struct *child; @@ -433,6 +438,53 @@ ret = 0; break; } + + case PTRACE_FAULTINFO: { + struct ptrace_faultinfo fault; + + fault = ((struct ptrace_faultinfo) + { .is_write = child->thread.error_code, + .addr = child->thread.cr2 }); + ret = copy_to_user((unsigned long *) data, &fault, + sizeof(fault)); + break; + } + case PTRACE_SIGPENDING: + ret = copy_to_user((unsigned long *) data, + &child->pending.signal, + sizeof(child->pending.signal)); + break; + + case PTRACE_LDT: { + struct ptrace_ldt ldt; + + if(copy_from_user(&ldt, (unsigned long *) data, + sizeof(ldt))){ + ret = -EIO; + break; + } + ret = modify_ldt(child->mm, ldt.func, ldt.ptr, ldt.bytecount); + break; + } + +#if 1 /* CONFIG_PROC_MM*/ + case PTRACE_SWITCH_MM: { + struct mm_struct *old = child->mm; + struct mm_struct *new = proc_mm_get_mm(data); + + if(IS_ERR(new)){ + ret = PTR_ERR(new); + break; + } + + atomic_inc(&new->mm_users); + child->mm = new; + child->active_mm = new; + mmput(old); + ret = 0; + break; + } +#endif default: ret = -EIO; diff -ruN linux-2.4.26-grsec-2.0/arch/i386/kernel/sys_i386.c linux-2.4.26-grsec-2.0-skas3/arch/i386/kernel/sys_i386.c --- linux-2.4.26-grsec-2.0/arch/i386/kernel/sys_i386.c Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/arch/i386/kernel/sys_i386.c Mon Jun 28 20:51:44 2004 @@ -41,7 +41,7 @@ } /* common code for old and new mmaps */ -static inline long do_mmap2( +long do_mmap2(struct mm_struct *mm, unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) @@ -67,9 +67,9 @@ goto out; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, addr, len, prot, flags, pgoff << PAGE_SHIFT); - up_write(¤t->mm->mmap_sem); + down_write(&mm->mmap_sem); + error = tf_do_mmap_skasgrsec(mm,file, addr, len, prot, flags, pgoff << PAGE_SHIFT); + up_write(&mm->mmap_sem); if (file) fput(file); @@ -81,7 +81,7 @@ unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - return do_mmap2(addr, len, prot, flags, fd, pgoff); + return do_mmap2(current->mm, addr, len, prot, flags, fd, pgoff); } /* @@ -112,7 +112,7 @@ if (a.offset & ~PAGE_MASK) goto out; - err = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); + err = do_mmap2(current->mm, a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); out: return err; } diff -ruN linux-2.4.26-grsec-2.0/include/asm-i386/processor.h linux-2.4.26-grsec-2.0-skas3/include/asm-i386/processor.h --- linux-2.4.26-grsec-2.0/include/asm-i386/processor.h Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/include/asm-i386/processor.h Mon Jun 28 21:39:35 2004 @@ -442,6 +442,8 @@ static inline void copy_segments(struct task_struct *p, struct mm_struct * mm) { } static inline void release_segments(struct mm_struct * mm) { } +extern int __init_new_context(struct mm_struct *old_mm, struct mm_struct *mm); + /* * Return saved PC of a blocked thread. */ diff -ruN linux-2.4.26-grsec-2.0/include/asm-i386/ptrace.h linux-2.4.26-grsec-2.0-skas3/include/asm-i386/ptrace.h --- linux-2.4.26-grsec-2.0/include/asm-i386/ptrace.h Fri Sep 14 23:04:08 2001 +++ linux-2.4.26-grsec-2.0-skas3/include/asm-i386/ptrace.h Mon Jun 28 20:41:40 2004 @@ -51,6 +51,22 @@ #define PTRACE_SETOPTIONS 21 +struct ptrace_faultinfo { + int is_write; + unsigned long addr; +}; + +struct ptrace_ldt { + int func; + void *ptr; + unsigned long bytecount; +}; + +#define PTRACE_FAULTINFO 52 +#define PTRACE_SIGPENDING 53 +#define PTRACE_LDT 54 +#define PTRACE_SWITCH_MM 55 + /* options set using PTRACE_SETOPTIONS */ #define PTRACE_O_TRACESYSGOOD 0x00000001 diff -ruN linux-2.4.26-grsec-2.0/include/linux/mm.h linux-2.4.26-grsec-2.0-skas3/include/linux/mm.h --- linux-2.4.26-grsec-2.0/include/linux/mm.h Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/include/linux/mm.h Mon Jun 28 21:40:29 2004 @@ -537,6 +537,9 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, int len, int write, int force, struct page **pages, struct vm_area_struct **vmas); +extern long do_mprotect(struct mm_struct *mm, unsigned long start, + size_t len, unsigned long prot); + /* * On a two-level page table, this ends up being trivial. Thus the * inlining and the symmetry break with pte_alloc() that does all @@ -584,9 +587,10 @@ extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); -extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - unsigned long len, unsigned long prot, - unsigned long flag, unsigned long pgoff); +extern unsigned long do_mmap_pgoff(struct mm_struct *mm, + struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long pgoff); extern int do_munmap(struct mm_struct *, unsigned long, size_t); @@ -605,10 +609,11 @@ if ((offset + PAGE_ALIGN(len)) < offset) goto out; if (!(offset & ~PAGE_MASK)) - ret = do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); + ret = do_mmap_pgoff(current->mm, file, addr, len, prot, flag, offset >> PAGE_SHIFT); #ifdef CONFIG_GRKERNSEC_PAX_SEGMEXEC - if ((current->flags & PF_PAX_SEGMEXEC) && ret < TASK_SIZE && ((flag & MAP_TYPE) == MAP_PRIVATE) +#define BAD_ADDR(x)> ((unsigned long)(x) > TASK_SIZE) + if ((current->flags & PF_PAX_SEGMEXEC) && !BAD_ADDR(ret) && ((flag & MAP_TYPE) == MAP_PRIVATE) #ifdef CONFIG_GRKERNSEC_PAX_MPROTECT && (!(current->flags & PF_PAX_MPROTECT) || ((prot & PROT_EXEC) && file && !(prot & PROT_WRITE))) @@ -618,11 +623,55 @@ unsigned long ret_m; prot = prot & PROT_EXEC ? prot : PROT_NONE; ret_m = do_mmap_pgoff(NULL, ret + SEGMEXEC_TASK_SIZE, 0UL, prot, flag | MAP_MIRROR | MAP_FIXED, ret); - if (ret_m >= TASK_SIZE) { + if (BAD_ADDR(ret_m)) { do_munmap(current->mm, ret, len); ret = ret_m; } } +#undef BAD_ADDR +#endif + +out: + return ret; +} + +/* T.F. */ +static inline unsigned long tf_do_mmap_skasgrsec(struct mm_struct *mm, + struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + unsigned long ret = -EINVAL; + +#ifdef CONFIG_GRKERNSEC_PAX_SEGMEXEC + if ((current->flags & PF_PAX_SEGMEXEC) && + (len > SEGMEXEC_TASK_SIZE || (addr && addr > SEGMEXEC_TASK_SIZE-len))) + goto out; +#endif + + if ((offset + PAGE_ALIGN(len)) < offset) + goto out; + if (!(offset & ~PAGE_MASK)) + ret = do_mmap_pgoff(mm, file, addr, len, prot, flag, offset >> PAGE_SHIFT); + +#ifdef CONFIG_GRKERNSEC_PAX_SEGMEXEC +#define BAD_ADDR(x)> ((unsigned long)(x) > TASK_SIZE) + if ((current->flags & PF_PAX_SEGMEXEC) && !BAD_ADDR(ret) && ((flag & MAP_TYPE) == MAP_PRIVATE) + +#ifdef CONFIG_GRKERNSEC_PAX_MPROTECT + && (!(current->flags & PF_PAX_MPROTECT) || ((prot & PROT_EXEC) && file && !(prot & PROT_WRITE))) +#endif + ) + { + unsigned long ret_m; + prot = prot & PROT_EXEC ? prot : PROT_NONE; + ret_m = do_mmap_pgoff(mm, NULL, ret + SEGMEXEC_TASK_SIZE, 0UL, prot, flag | MAP_MIRROR | MAP_FIXED, ret); + if (BAD_ADDR(ret_m)) { + do_munmap(mm, ret, len); + ret = ret_m; + } + } +#undef BAD_ADDR #endif out: diff -ruN linux-2.4.26-grsec-2.0/include/linux/proc_mm.h linux-2.4.26-grsec-2.0-skas3/include/linux/proc_mm.h --- linux-2.4.26-grsec-2.0/include/linux/proc_mm.h Thu Jan 1 01:00:00 1970 +++ linux-2.4.26-grsec-2.0-skas3/include/linux/proc_mm.h Mon Jun 28 20:41:40 2004 @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __PROC_MM_H +#define __PROC_MM_H + +#define MM_MMAP 54 +#define MM_MUNMAP 55 +#define MM_MPROTECT 56 +#define MM_COPY_SEGMENTS 57 + +struct mm_mmap { + unsigned long addr; + unsigned long len; + unsigned long prot; + unsigned long flags; + unsigned long fd; + unsigned long offset; +}; + +struct mm_munmap { + unsigned long addr; + unsigned long len; +}; + +struct mm_mprotect { + unsigned long addr; + unsigned long len; + unsigned int prot; +}; + +struct proc_mm_op { + int op; + union { + struct mm_mmap mmap; + struct mm_munmap munmap; + struct mm_mprotect mprotect; + int copy_segments; + } u; +}; + +#endif diff -ruN linux-2.4.26-grsec-2.0/mm/Makefile linux-2.4.26-grsec-2.0-skas3/mm/Makefile --- linux-2.4.26-grsec-2.0/mm/Makefile Sat Aug 3 02:39:46 2002 +++ linux-2.4.26-grsec-2.0-skas3/mm/Makefile Mon Jun 28 20:41:40 2004 @@ -17,5 +17,7 @@ shmem.o obj-$(CONFIG_HIGHMEM) += highmem.o +#obj-$(CONFIG_PROC_MM) +obj-y += proc_mm.o include $(TOPDIR)/Rules.make diff -ruN linux-2.4.26-grsec-2.0/mm/mmap.c linux-2.4.26-grsec-2.0-skas3/mm/mmap.c --- linux-2.4.26-grsec-2.0/mm/mmap.c Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/mm/mmap.c Mon Jun 28 20:41:40 2004 @@ -399,10 +399,11 @@ return 0; } -unsigned long do_mmap_pgoff(struct file * file, unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, unsigned long pgoff) +unsigned long do_mmap_pgoff(struct mm_struct *mm, struct file * file, + unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long pgoff) { - struct mm_struct * mm = current->mm; struct vm_area_struct * vma, * prev; unsigned int vm_flags; int correct_wcount = 0; diff -ruN linux-2.4.26-grsec-2.0/mm/mprotect.c linux-2.4.26-grsec-2.0-skas3/mm/mprotect.c --- linux-2.4.26-grsec-2.0/mm/mprotect.c Mon Jun 28 21:22:42 2004 +++ linux-2.4.26-grsec-2.0-skas3/mm/mprotect.c Mon Jun 28 20:45:13 2004 @@ -378,7 +378,8 @@ } #endif -asmlinkage long sys_mprotect(unsigned long start, size_t len, unsigned long prot) +long do_mprotect(struct mm_struct *mm, unsigned long start, size_t len, + unsigned long prot) { unsigned long nstart, end, tmp; struct vm_area_struct * vma, * next, * prev; @@ -406,9 +407,9 @@ if (end == start) return 0; - down_write(¤t->mm->mmap_sem); + down_write(&mm->mmap_sem); - vma = find_vma_prev(current->mm, start, &prev); + vma = find_vma_prev(mm, start, &prev); error = -ENOMEM; if (!vma || vma->vm_start > start) goto out; @@ -473,7 +474,12 @@ prev->vm_mm->map_count--; } out: - - up_write(¤t->mm->mmap_sem); + up_write(&mm->mmap_sem); return error; } + +asmlinkage long sys_mprotect(unsigned long start, size_t len, unsigned long prot) +{ + return(do_mprotect(current->mm, start, len, prot)); +} + diff -ruN linux-2.4.26-grsec-2.0/mm/proc_mm.c linux-2.4.26-grsec-2.0-skas3/mm/proc_mm.c --- linux-2.4.26-grsec-2.0/mm/proc_mm.c Thu Jan 1 01:00:00 1970 +++ linux-2.4.26-grsec-2.0-skas3/mm/proc_mm.c Mon Jun 28 20:41:40 2004 @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include "linux/proc_fs.h" +#include "linux/proc_mm.h" +#include "linux/file.h" +#include "asm/uaccess.h" +#include "asm/mmu_context.h" + +static struct file_operations proc_mm_fops; + +struct mm_struct *proc_mm_get_mm(int fd) +{ + struct mm_struct *ret = ERR_PTR(-EBADF); + struct file *file; + + file = fget(fd); + if (!file) + goto out; + + ret = ERR_PTR(-EINVAL); + if(file->f_op != &proc_mm_fops) + goto out_fput; + + ret = file->private_data; + + out_fput: + fput(file); + out: + return(ret); +} + +extern long do_mmap2(struct mm_struct *mm, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flags, unsigned long fd, + unsigned long pgoff); + +static ssize_t write_proc_mm(struct file *file, const char *buffer, + size_t count, loff_t *ppos) +{ + struct mm_struct *mm = file->private_data; + struct proc_mm_op req; + int n, ret; + + if(count > sizeof(req)) + return(-EINVAL); + + n = copy_from_user(&req, buffer, count); + if(n != 0) + return(-EFAULT); + + ret = count; + switch(req.op){ + case MM_MMAP: { + struct mm_mmap *map = &req.u.mmap; + + ret = do_mmap2(mm, map->addr, map->len, map->prot, + map->flags, map->fd, map->offset >> PAGE_SHIFT); + if((ret & ~PAGE_MASK) == 0) + ret = count; + + break; + } + case MM_MUNMAP: { + struct mm_munmap *unmap = &req.u.munmap; + + down_write(&mm->mmap_sem); + ret = do_munmap(mm, unmap->addr, unmap->len); + up_write(&mm->mmap_sem); + + if(ret == 0) + ret = count; + break; + } + case MM_MPROTECT: { + struct mm_mprotect *protect = &req.u.mprotect; + + ret = do_mprotect(mm, protect->addr, protect->len, + protect->prot); + if(ret == 0) + ret = count; + break; + } + + case MM_COPY_SEGMENTS: { + struct mm_struct *from = proc_mm_get_mm(req.u.copy_segments); + + if(IS_ERR(from)){ + ret = PTR_ERR(from); + break; + } + + /*mm_copy_segments(from, mm);*/ + __init_new_context(from, mm); + break; + } + default: + ret = -EINVAL; + break; + } + + return(ret); +} + +static int open_proc_mm(struct inode *inode, struct file *file) +{ + struct mm_struct *mm = mm_alloc(); + int ret; + + ret = -ENOMEM; + if(mm == NULL) + goto out_mem; + + ret = init_new_context(current, mm); + if(ret) + goto out_free; + + spin_lock(&mmlist_lock); + list_add(&mm->mmlist, ¤t->mm->mmlist); + mmlist_nr++; + spin_unlock(&mmlist_lock); + + file->private_data = mm; + + return(0); + + out_free: + mmput(mm); + out_mem: + return(ret); +} + +static int release_proc_mm(struct inode *inode, struct file *file) +{ + struct mm_struct *mm = file->private_data; + + mmput(mm); + return(0); +} + +static struct file_operations proc_mm_fops = { + .open = open_proc_mm, + .release = release_proc_mm, + .write = write_proc_mm, +}; + +static int make_proc_mm(void) +{ + struct proc_dir_entry *ent; + + ent = create_proc_entry("mm", 0222, &proc_root); + if(ent == NULL){ + printk("make_proc_mm : Failed to register /proc/mm\n"); + return(0); + } + ent->proc_fops = &proc_mm_fops; + + return(0); +} + +__initcall(make_proc_mm); + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ --IS0zKkzwUGydFO0o-- ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel