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-rw-r--r--lib/libprocstat/Symbol.map2
-rw-r--r--lib/libprocstat/core.c4
-rw-r--r--lib/libprocstat/core.h1
-rw-r--r--lib/libprocstat/libprocstat.327
-rw-r--r--lib/libprocstat/libprocstat.c67
-rw-r--r--lib/libprocstat/libprocstat.h3
6 files changed, 104 insertions, 0 deletions
diff --git a/lib/libprocstat/Symbol.map b/lib/libprocstat/Symbol.map
index aa74659..5ac5ee1 100644
--- a/lib/libprocstat/Symbol.map
+++ b/lib/libprocstat/Symbol.map
@@ -16,8 +16,10 @@ FBSD_1.2 {
};
FBSD_1.3 {
+ procstat_freegroups;
procstat_freevmmap;
procstat_get_shm_info;
+ procstat_getgroups;
procstat_getvmmap;
procstat_open_core;
};
diff --git a/lib/libprocstat/core.c b/lib/libprocstat/core.c
index 1ada459..afaa76c 100644
--- a/lib/libprocstat/core.c
+++ b/lib/libprocstat/core.c
@@ -167,6 +167,10 @@ procstat_core_get(struct procstat_core *core, enum psc_type type, void *buf,
n_type = NT_PROCSTAT_VMMAP;
structsize = sizeof(struct kinfo_vmentry);
break;
+ case PSC_TYPE_GROUPS:
+ n_type = NT_PROCSTAT_GROUPS;
+ structsize = sizeof(gid_t);
+ break;
default:
warnx("unknown core stat type: %d", type);
return (NULL);
diff --git a/lib/libprocstat/core.h b/lib/libprocstat/core.h
index 8e2dd13..54efa29 100644
--- a/lib/libprocstat/core.h
+++ b/lib/libprocstat/core.h
@@ -33,6 +33,7 @@ enum psc_type {
PSC_TYPE_PROC,
PSC_TYPE_FILES,
PSC_TYPE_VMMAP,
+ PSC_TYPE_GROUPS,
};
struct procstat_core;
diff --git a/lib/libprocstat/libprocstat.3 b/lib/libprocstat/libprocstat.3
index 18dc1e9..b38ce1c 100644
--- a/lib/libprocstat/libprocstat.3
+++ b/lib/libprocstat/libprocstat.3
@@ -33,9 +33,11 @@
.Nm procstat_open_sysctl ,
.Nm procstat_close ,
.Nm procstat_getfiles ,
+.Nm procstat_getgroups ,
.Nm procstat_getprocs ,
.Nm procstat_getvmmap ,
.Nm procstat_freefiles ,
+.Nm procstat_freegroups ,
.Nm procstat_freeprocs ,
.Nm procstat_freevmmap ,
.Nm procstat_get_pipe_info ,
@@ -52,12 +54,18 @@
.In libprocstat.h
.Ft void
.Fn procstat_close "struct procstat *procstat"
+.Fc
.Ft void
.Fo procstat_freefiles
.Fa "struct procstat *procstat"
.Fa "struct filestat_list *head"
.Fc
.Ft void
+.Fo procstat_freegroups
+.Fa "struct procstat *procstat"
+.Fa "gid_t *groups"
+.Fc
+.Ft void
.Fn procstat_freeprocs "struct procstat *procstat" "struct kinfo_proc *p"
.Ft void
.Fo procstat_freevmmap
@@ -105,6 +113,12 @@
.Fa "struct kinfo_proc *kp"
.Fa "int mmapped"
.Fc
+.Ft "gid_t *"
+.Fo procstat_getgroups
+.Fa "struct procstat *procstat"
+.Fa "struct kinfo_proc *kp"
+.Fa "unsigned int *count"
+.Fc
.Ft "struct kinfo_proc *"
.Fo procstat_getprocs
.Fa "struct procstat *procstat"
@@ -227,6 +241,19 @@ The caller is responsible to free the allocated memory with a subsequent
function call.
.Pp
The
+.Fn procstat_getgroups
+function gets a pointer to the
+.Vt procstat
+structure, a pointer to
+.Vt kinfo_proc
+structure, and returns the process groups as a dynamically allocated array of
+.Vt gid_t
+elements.
+The caller is responsible to free the allocated memory with a subsequent
+.Fn procstat_freegroups
+function call.
+.Pp
+The
.Fn procstat_getvmmap
function gets a pointer to the
.Vt procstat
diff --git a/lib/libprocstat/libprocstat.c b/lib/libprocstat/libprocstat.c
index 283f802..b300b1f 100644
--- a/lib/libprocstat/libprocstat.c
+++ b/lib/libprocstat/libprocstat.c
@@ -132,6 +132,9 @@ static int procstat_get_vnode_info_kvm(kvm_t *kd, struct filestat *fst,
struct vnstat *vn, char *errbuf);
static int procstat_get_vnode_info_sysctl(struct filestat *fst,
struct vnstat *vn, char *errbuf);
+static gid_t *procstat_getgroups_core(struct procstat_core *core,
+ unsigned int *count);
+static gid_t *procstat_getgroups_sysctl(pid_t pid, unsigned int *count);
static int vntype2psfsttype(int type);
void
@@ -1588,3 +1591,67 @@ procstat_freevmmap(struct procstat *procstat __unused,
free(vmmap);
}
+
+static gid_t *
+procstat_getgroups_sysctl(pid_t pid, unsigned int *cntp)
+{
+ int mib[4];
+ size_t len;
+ gid_t *groups;
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_PROC;
+ mib[2] = KERN_PROC_GROUPS;
+ mib[3] = pid;
+ len = (sysconf(_SC_NGROUPS_MAX) + 1) * sizeof(gid_t);
+ groups = malloc(len);
+ if (groups == NULL) {
+ warn("malloc(%zu)", len);
+ return (NULL);
+ }
+ if (sysctl(mib, 4, groups, &len, NULL, 0) == -1) {
+ warn("sysctl: kern.proc.groups: %d", pid);
+ free(groups);
+ return (NULL);
+ }
+ *cntp = len / sizeof(gid_t);
+ return (groups);
+}
+
+static gid_t *
+procstat_getgroups_core(struct procstat_core *core, unsigned int *cntp)
+{
+ size_t len;
+ gid_t *groups;
+
+ groups = procstat_core_get(core, PSC_TYPE_GROUPS, NULL, &len);
+ if (groups == NULL)
+ return (NULL);
+ *cntp = len / sizeof(gid_t);
+ return (groups);
+}
+
+gid_t *
+procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
+ unsigned int *cntp)
+{
+ switch(procstat->type) {
+ case PROCSTAT_KVM:
+ warnx("kvm method is not supported");
+ return (NULL);
+ case PROCSTAT_SYSCTL:
+ return (procstat_getgroups_sysctl(kp->ki_pid, cntp));
+ case PROCSTAT_CORE:
+ return (procstat_getgroups_core(procstat->core, cntp));
+ default:
+ warnx("unknown access method: %d", procstat->type);
+ return (NULL);
+ }
+}
+
+void
+procstat_freegroups(struct procstat *procstat __unused, gid_t *groups)
+{
+
+ free(groups);
+}
diff --git a/lib/libprocstat/libprocstat.h b/lib/libprocstat/libprocstat.h
index 71d85a1..0c4e77a 100644
--- a/lib/libprocstat/libprocstat.h
+++ b/lib/libprocstat/libprocstat.h
@@ -146,6 +146,7 @@ STAILQ_HEAD(filestat_list, filestat);
__BEGIN_DECLS
void procstat_close(struct procstat *procstat);
+void procstat_freegroups(struct procstat *procstat, gid_t *groups);
void procstat_freeprocs(struct procstat *procstat, struct kinfo_proc *p);
void procstat_freefiles(struct procstat *procstat,
struct filestat_list *head);
@@ -165,6 +166,8 @@ 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,
struct vnstat *vn, char *errbuf);
+gid_t *procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
+ unsigned int *count);
struct kinfo_vmentry *procstat_getvmmap(struct procstat *procstat,
struct kinfo_proc *kp, unsigned int *count);
struct procstat *procstat_open_core(const char *filename);
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