1 #include "syslib.h"
2 #include <string.h>
3 #include <unistd.h>
4
5 #include <sys/socket.h>
6
7 pid_t
getepinfo(endpoint_t proc_ep,uid_t * uid,gid_t * gid)8 getepinfo(endpoint_t proc_ep, uid_t *uid, gid_t *gid)
9 {
10 message m;
11 int r;
12
13 memset(&m, 0, sizeof(m));
14 m.m_lsys_pm_getepinfo.endpt = proc_ep;
15 m.m_lsys_pm_getepinfo.groups = (vir_bytes)NULL;
16 m.m_lsys_pm_getepinfo.ngroups = 0;
17
18 if ((r = _taskcall(PM_PROC_NR, PM_GETEPINFO, &m)) < 0)
19 return r;
20
21 if (uid != NULL)
22 *uid = m.m_pm_lsys_getepinfo.euid;
23 if (gid != NULL)
24 *gid = m.m_pm_lsys_getepinfo.egid;
25 return (pid_t) r;
26 }
27
28 pid_t
getnpid(endpoint_t proc_ep)29 getnpid(endpoint_t proc_ep)
30 {
31 return getepinfo(proc_ep, NULL, NULL);
32 }
33
34 uid_t
getnuid(endpoint_t proc_ep)35 getnuid(endpoint_t proc_ep)
36 {
37 uid_t uid;
38 int r;
39
40 if ((r = getepinfo(proc_ep, &uid, NULL)) < 0)
41 return (uid_t) r;
42
43 return uid;
44 }
45
46 gid_t
getngid(endpoint_t proc_ep)47 getngid(endpoint_t proc_ep)
48 {
49 gid_t gid;
50 int r;
51
52 if ((r = getepinfo(proc_ep, NULL, &gid)) < 0)
53 return (gid_t) r;
54
55 return gid;
56 }
57
58 int
getsockcred(endpoint_t proc_ep,struct sockcred * sockcred,gid_t * groups,int ngroups)59 getsockcred(endpoint_t proc_ep, struct sockcred * sockcred, gid_t * groups,
60 int ngroups)
61 {
62 message m;
63 int r;
64
65 memset(&m, 0, sizeof(m));
66 m.m_lsys_pm_getepinfo.endpt = proc_ep;
67 m.m_lsys_pm_getepinfo.groups = (vir_bytes)groups;
68 m.m_lsys_pm_getepinfo.ngroups = ngroups;
69
70 if ((r = _taskcall(PM_PROC_NR, PM_GETEPINFO, &m)) < 0)
71 return r;
72
73 sockcred->sc_uid = m.m_pm_lsys_getepinfo.uid;
74 sockcred->sc_euid = m.m_pm_lsys_getepinfo.euid;
75 sockcred->sc_gid = m.m_pm_lsys_getepinfo.gid;
76 sockcred->sc_egid = m.m_pm_lsys_getepinfo.egid;
77 sockcred->sc_ngroups = m.m_pm_lsys_getepinfo.ngroups;
78
79 return OK;
80 }
81