diff options
Diffstat (limited to 'sys/kern/kern_descrip.c')
-rw-r--r-- | sys/kern/kern_descrip.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 18fd937..251a558 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -58,6 +58,7 @@ __FBSDID("$FreeBSD$"); #include <sys/limits.h> #include <sys/lock.h> #include <sys/malloc.h> +#include <sys/mman.h> #include <sys/mount.h> #include <sys/mqueue.h> #include <sys/mutex.h> @@ -126,6 +127,7 @@ static int fill_pts_info(struct tty *tp, struct kinfo_file *kif); static int fill_pipe_info(struct pipe *pi, struct kinfo_file *kif); static int fill_procdesc_info(struct procdesc *pdp, struct kinfo_file *kif); +static int fill_shm_info(struct file *fp, struct kinfo_file *kif); /* * A process is initially started out with NDFILE descriptors stored within @@ -2958,6 +2960,7 @@ sysctl_kern_proc_ofiledesc(SYSCTL_HANDLER_ARGS) struct kinfo_ofile *kif; struct filedesc *fdp; int error, i, *name; + struct shmfd *shmfd; struct socket *so; struct vnode *vp; struct file *fp; @@ -2995,6 +2998,7 @@ sysctl_kern_proc_ofiledesc(SYSCTL_HANDLER_ARGS) vp = NULL; so = NULL; tp = NULL; + shmfd = NULL; kif->kf_fd = i; #ifdef CAPABILITIES @@ -3046,6 +3050,7 @@ sysctl_kern_proc_ofiledesc(SYSCTL_HANDLER_ARGS) case DTYPE_SHM: kif->kf_type = KF_TYPE_SHM; + shmfd = fp->f_data; break; case DTYPE_SEM: @@ -3159,6 +3164,8 @@ sysctl_kern_proc_ofiledesc(SYSCTL_HANDLER_ARGS) strlcpy(kif->kf_path, tty_devname(tp), sizeof(kif->kf_path)); } + if (shmfd != NULL) + shm_path(shmfd, kif->kf_path, sizeof(kif->kf_path)); error = SYSCTL_OUT(req, kif, sizeof(*kif)); if (error) break; @@ -3229,6 +3236,9 @@ export_fd_for_sysctl(void *data, int type, int fd, int fflags, int refcnt, case KF_TYPE_PROCDESC: error = fill_procdesc_info((struct procdesc *)data, kif); break; + case KF_TYPE_SHM: + error = fill_shm_info((struct file *)data, kif); + break; default: error = 0; } @@ -3398,6 +3408,7 @@ sysctl_kern_proc_filedesc(SYSCTL_HANDLER_ARGS) case DTYPE_SHM: type = KF_TYPE_SHM; + data = fp; break; case DTYPE_SEM: @@ -3621,6 +3632,23 @@ fill_procdesc_info(struct procdesc *pdp, struct kinfo_file *kif) return (0); } +static int +fill_shm_info(struct file *fp, struct kinfo_file *kif) +{ + struct thread *td; + struct stat sb; + + td = curthread; + if (fp->f_data == NULL) + return (1); + if (fo_stat(fp, &sb, td->td_ucred, td) != 0) + return (1); + shm_path(fp->f_data, kif->kf_path, sizeof(kif->kf_path)); + kif->kf_un.kf_file.kf_file_mode = sb.st_mode; + kif->kf_un.kf_file.kf_file_size = sb.st_size; + return (0); +} + static SYSCTL_NODE(_kern_proc, KERN_PROC_FILEDESC, filedesc, CTLFLAG_RD, sysctl_kern_proc_filedesc, "Process filedesc entries"); |