diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c deleted file mode 100644 index dd923dc637d5..000000000000 --- a/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c +++ /dev/null @@ -1,62 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Copyright (c) 2020 Facebook */ -#include "bpf_iter.h" -#include <bpf/bpf_helpers.h> - -char _license[] SEC("license") = "GPL"; - -/* Copied from mm.h */ -#define VM_READ 0x00000001 -#define VM_WRITE 0x00000002 -#define VM_EXEC 0x00000004 -#define VM_MAYSHARE 0x00000080 - -/* Copied from kdev_t.h */ -#define MINORBITS 20 -#define MINORMASK ((1U << MINORBITS) - 1) -#define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS)) -#define MINOR(dev) ((unsigned int) ((dev) & MINORMASK)) - -#define D_PATH_BUF_SIZE 1024 -char d_path_buf[D_PATH_BUF_SIZE] = {}; -__u32 pid = 0; -__u32 one_task = 0; -__u32 one_task_error = 0; - -SEC("iter/task_vma") int proc_maps(struct bpf_iter__task_vma *ctx) -{ - struct vm_area_struct *vma = ctx->vma; - struct seq_file *seq = ctx->meta->seq; - struct task_struct *task = ctx->task; - struct file *file; - char perm_str[] = "----"; - - if (task == (void *)0 || vma == (void *)0) - return 0; - - file = vma->vm_file; - if (task->tgid != pid) { - if (one_task) - one_task_error = 1; - return 0; - } - perm_str[0] = (vma->vm_flags & VM_READ) ? 'r' : '-'; - perm_str[1] = (vma->vm_flags & VM_WRITE) ? 'w' : '-'; - perm_str[2] = (vma->vm_flags & VM_EXEC) ? 'x' : '-'; - perm_str[3] = (vma->vm_flags & VM_MAYSHARE) ? 's' : 'p'; - BPF_SEQ_PRINTF(seq, "%08llx-%08llx %s ", vma->vm_start, vma->vm_end, perm_str); - - if (file) { - __u32 dev = file->f_inode->i_sb->s_dev; - - bpf_d_path(&file->f_path, d_path_buf, D_PATH_BUF_SIZE); - - BPF_SEQ_PRINTF(seq, "%08llx ", vma->vm_pgoff << 12); - BPF_SEQ_PRINTF(seq, "%02x:%02x %u", MAJOR(dev), MINOR(dev), - file->f_inode->i_ino); - BPF_SEQ_PRINTF(seq, "\t%s\n", d_path_buf); - } else { - BPF_SEQ_PRINTF(seq, "%08llx 00:00 0\n", 0ULL); - } - return 0; -} |
