diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libprocstat/Symbol.map | 4 | ||||
-rw-r--r-- | lib/libprocstat/Versions.def | 5 | ||||
-rw-r--r-- | lib/libprocstat/libprocstat.3 | 15 | ||||
-rw-r--r-- | lib/libprocstat/libprocstat.c | 72 | ||||
-rw-r--r-- | lib/libprocstat/libprocstat.h | 6 |
5 files changed, 101 insertions, 1 deletions
diff --git a/lib/libprocstat/Symbol.map b/lib/libprocstat/Symbol.map index b5d64d0..0509066 100644 --- a/lib/libprocstat/Symbol.map +++ b/lib/libprocstat/Symbol.map @@ -14,3 +14,7 @@ FBSD_1.2 { procstat_open_kvm; procstat_open_sysctl; }; + +FBSD_1.3 { + procstat_get_shm_info; +}; diff --git a/lib/libprocstat/Versions.def b/lib/libprocstat/Versions.def index d69f5c9..ed958db 100644 --- a/lib/libprocstat/Versions.def +++ b/lib/libprocstat/Versions.def @@ -3,3 +3,8 @@ # This version was first added to 9.0-current. FBSD_1.2 { }; + +# This version was first added to 10.0-current. +FBSD_1.3 { +} FBSD_1.2; + diff --git a/lib/libprocstat/libprocstat.3 b/lib/libprocstat/libprocstat.3 index 49799f5..07fffb2 100644 --- a/lib/libprocstat/libprocstat.3 +++ b/lib/libprocstat/libprocstat.3 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 12, 2011 +.Dd April 1, 2012 .Dt LIBPROCSTAT 3 .Os .Sh NAME @@ -37,6 +37,7 @@ .Nm procstat_freeprocs , .Nm procstat_get_pipe_info , .Nm procstat_get_pts_info , +.Nm procstat_get_shm_info , .Nm procstat_get_socket_info , .Nm procstat_get_vnode_info .Nd library interface for file and process information retrieval @@ -70,6 +71,13 @@ .Fa "char *errbuf" .Fc .Ft int +.Fo procstat_get_shm_info +.Fa "struct procstat *procstat" +.Fa "struct filestat *fst" +.Fa "struct shmstat *shm" +.Fa "char *errbuf" +.Fc +.Ft int .Fo procstat_get_socket_info .Fa "struct procstat *procstat" .Fa "struct filestat *fst" @@ -191,10 +199,12 @@ function call. The .Fn procstat_get_pipe_info , .Fn procstat_get_pts_info , +.Fn procstat_get_shm_info , .Fn procstat_get_socket_info and .Fn procstat_get_vnode_info functions are used to retrive information about pipes, pseudo-terminals, +shared memory objects, sockets, and vnodes, respectively. Each of them have a similar interface API. The @@ -231,11 +241,14 @@ argument indicates an actual error message in case of failure. .Nm procstat_get_pipe_info .It Li PS_FST_TYPE_PTS .Nm procstat_get_pts_info +.It Li PS_FST_TYPE_SHM +.Nm procstat_get_shm_info .El .Sh SEE ALSO .Xr fstat 1 , .Xr fuser 1 , .Xr pipe 2 , +.Xr shm_open 2 , .Xr socket 2 , .Xr kvm 3 , .Xr queue 3 , diff --git a/lib/libprocstat/libprocstat.c b/lib/libprocstat/libprocstat.c index facce11..167d91a 100644 --- a/lib/libprocstat/libprocstat.c +++ b/lib/libprocstat/libprocstat.c @@ -54,6 +54,7 @@ __FBSDID("$FreeBSD$"); #define _WANT_FILE #include <sys/file.h> #include <sys/conf.h> +#include <sys/mman.h> #define _KERNEL #include <sys/mount.h> #include <sys/pipe.h> @@ -114,6 +115,10 @@ static int procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts, char *errbuf); static int procstat_get_pts_info_kvm(kvm_t *kd, struct filestat *fst, struct ptsstat *pts, char *errbuf); +static int procstat_get_shm_info_sysctl(struct filestat *fst, + struct shmstat *shm, char *errbuf); +static int procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst, + struct shmstat *shm, char *errbuf); static int procstat_get_socket_info_sysctl(struct filestat *fst, struct sockstat *sock, char *errbuf); static int procstat_get_socket_info_kvm(kvm_t *kd, struct filestat *fst, @@ -469,6 +474,10 @@ procstat_getfiles_kvm(struct procstat *procstat, struct kinfo_proc *kp, int mmap data = file.f_data; break; #endif + case DTYPE_SHM: + type = PS_FST_TYPE_SHM; + data = file.f_data; + break; default: continue; } @@ -849,6 +858,69 @@ procstat_get_pts_info_sysctl(struct filestat *fst, struct ptsstat *pts, } int +procstat_get_shm_info(struct procstat *procstat, struct filestat *fst, + struct shmstat *shm, char *errbuf) +{ + + assert(shm); + if (procstat->type == PROCSTAT_KVM) { + return (procstat_get_shm_info_kvm(procstat->kd, fst, shm, + errbuf)); + } else if (procstat->type == PROCSTAT_SYSCTL) { + return (procstat_get_shm_info_sysctl(fst, shm, errbuf)); + } else { + warnx("unknown access method: %d", procstat->type); + snprintf(errbuf, _POSIX2_LINE_MAX, "error"); + return (1); + } +} + +static int +procstat_get_shm_info_kvm(kvm_t *kd, struct filestat *fst, + struct shmstat *shm, char *errbuf) +{ + struct shmfd shmfd; + void *shmfdp; + + assert(kd); + assert(shm); + assert(fst); + bzero(shm, sizeof(*shm)); + shmfdp = fst->fs_typedep; + if (shmfdp == NULL) + goto fail; + if (!kvm_read_all(kd, (unsigned long)shmfdp, &shmfd, + sizeof(struct shmfd))) { + warnx("can't read shmfd at %p", (void *)shmfdp); + goto fail; + } + shm->mode = S_IFREG | shmfd.shm_mode; + shm->size = shmfd.shm_size; + return (0); + +fail: + snprintf(errbuf, _POSIX2_LINE_MAX, "error"); + return (1); +} + +static int +procstat_get_shm_info_sysctl(struct filestat *fst, struct shmstat *shm, + char *errbuf __unused) +{ + struct kinfo_file *kif; + + assert(shm); + assert(fst); + bzero(shm, sizeof(*shm)); + kif = fst->fs_typedep; + if (kif == NULL) + return (0); + shm->size = kif->kf_un.kf_file.kf_file_size; + shm->mode = kif->kf_un.kf_file.kf_file_mode; + return (0); +} + +int procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst, struct vnstat *vn, char *errbuf) { diff --git a/lib/libprocstat/libprocstat.h b/lib/libprocstat/libprocstat.h index f1ca109..c00a179 100644 --- a/lib/libprocstat/libprocstat.h +++ b/lib/libprocstat/libprocstat.h @@ -123,6 +123,10 @@ struct pipestat { uint64_t addr; uint64_t peer; }; +struct shmstat { + uint64_t size; + uint16_t mode; +}; struct sockstat { uint64_t inp_ppcb; uint64_t so_addr; @@ -152,6 +156,8 @@ int procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst, struct pipestat *pipe, char *errbuf); int procstat_get_pts_info(struct procstat *procstat, struct filestat *fst, struct ptsstat *pts, char *errbuf); +int procstat_get_shm_info(struct procstat *procstat, struct filestat *fst, + struct shmstat *shm, char *errbuf); int procstat_get_socket_info(struct procstat *procstat, struct filestat *fst, struct sockstat *sock, char *errbuf); int procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst, |