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Implement rt_sigqueueinfo() system call.

Browse source 
Differential Revision:	https://reviews.freebsd.org/D1047
Reviewed by:	trasz
This commit is contained in:
Dmitry Chagin 2015-05-24 15:11:32 +00:00
parent e4454275a5
commit 7ac9766db4
6 changed files with 60 additions and 4 deletions
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1
sys/amd64/linux32/linux32_dummy.c
View file

@ -61,7 +61,6 @@ DUMMY(bdflush);
DUMMY(sysfs);
DUMMY(query_module);
DUMMY(nfsservctl);
DUMMY(rt_sigqueueinfo);
DUMMY(sendfile);
DUMMY(setfsuid);
DUMMY(setfsgid);

3
sys/amd64/linux32/syscalls.master
View file

@ -318,7 +318,8 @@
l_siginfo_t *ptr, \
struct l_timeval *timeout, \
l_size_t sigsetsize); }
178 AUE_NULL STD { int linux_rt_sigqueueinfo(void); }
178 AUE_NULL STD { int linux_rt_sigqueueinfo(l_pid_t pid, l_int sig, \
l_siginfo_t *info); }
179 AUE_NULL STD { int linux_rt_sigsuspend( \
l_sigset_t *newset, \
l_size_t sigsetsize); }

55
sys/compat/linux/linux_signal.c
View file

@ -751,3 +751,58 @@ siginfo_to_lsiginfo(const siginfo_t *si, l_siginfo_t *lsi, l_int sig)
break;
}
}
void
lsiginfo_to_ksiginfo(const l_siginfo_t *lsi, ksiginfo_t *ksi, int sig)
{
ksi->ksi_signo = sig;
ksi->ksi_code = lsi->lsi_code; /* XXX. Convert. */
ksi->ksi_pid = lsi->lsi_pid;
ksi->ksi_uid = lsi->lsi_uid;
ksi->ksi_status = lsi->lsi_status;
ksi->ksi_addr = PTRIN(lsi->lsi_addr);
ksi->ksi_info.si_value.sival_int = lsi->lsi_int;
}
int
linux_rt_sigqueueinfo(struct thread *td, struct linux_rt_sigqueueinfo_args *args)
{
l_siginfo_t linfo;
struct proc *p;
ksiginfo_t ksi;
int error;
int sig;
if (!LINUX_SIG_VALID(args->sig))
return (EINVAL);
error = copyin(args->info, &linfo, sizeof(linfo));
if (error != 0)
return (error);
if (linfo.lsi_code >= 0)
return (EPERM);
if (args->sig > 0 && args->sig <= LINUX_SIGTBLSZ)
sig = linux_to_bsd_signal[_SIG_IDX(args->sig)];
else
sig = args->sig;
error = ESRCH;
if ((p = pfind(args->pid)) != NULL ||
(p = zpfind(args->pid)) != NULL) {
error = p_cansignal(td, p, sig);
if (error != 0) {
PROC_UNLOCK(p);
return (error);
}
ksiginfo_init(&ksi);
lsiginfo_to_ksiginfo(&linfo, &ksi, sig);
error = tdsendsignal(p, NULL, sig, &ksi);
PROC_UNLOCK(p);
}
return (error);
}

1
sys/compat/linux/linux_signal.h
View file

@ -51,6 +51,7 @@ void bsd_to_linux_sigset(sigset_t *, l_sigset_t *);
int linux_do_sigaction(struct thread *, int, l_sigaction_t *, l_sigaction_t *);
void ksiginfo_to_lsiginfo(const ksiginfo_t *ksi, l_siginfo_t *lsi, l_int sig);
void siginfo_to_lsiginfo(const siginfo_t *si, l_siginfo_t *lsi, l_int sig);
void lsiginfo_to_ksiginfo(const l_siginfo_t *lsi, ksiginfo_t *ksi, int sig);
#define LINUX_SIG_VALID(sig) ((sig) <= LINUX_NSIG && (sig) > 0)

1
sys/i386/linux/linux_dummy.c
View file

@ -64,7 +64,6 @@ DUMMY(sysfs);
DUMMY(vm86);
DUMMY(query_module);
DUMMY(nfsservctl);
DUMMY(rt_sigqueueinfo);
DUMMY(sendfile); /* different semantics */
DUMMY(setfsuid);
DUMMY(setfsgid);

3
sys/i386/linux/syscalls.master
View file

@ -320,7 +320,8 @@
l_siginfo_t *ptr, \
struct l_timeval *timeout, \
l_size_t sigsetsize); }
178 AUE_NULL STD { int linux_rt_sigqueueinfo(void); }
178 AUE_NULL STD { int linux_rt_sigqueueinfo(l_pid_t pid, l_int sig, \
l_siginfo_t *info); }
179 AUE_NULL STD { int linux_rt_sigsuspend( \
l_sigset_t *newset, \
l_size_t sigsetsize); }