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ct_pr_tmpl_set_svc_aux(3contract)
ct...fer(3CONTRACT) Contract Management Library Functions ct...fer(3CONTRACT)
NAME
ct_pr_tmpl_set_transfer, ct_pr_tmpl_set_fatal, ct_pr_tmpl_set_param,
ct_pr_tmpl_set_svc_fmri, ct_pr_tmpl_set_svc_aux, ct_pr_tmpl_get_trans‐
fer, ct_pr_tmpl_get_fatal, ct_pr_tmpl_get_param,
ct_pr_tmpl_get_svc_fmri, ct_pr_tmpl_get_svc_aux - process contract tem‐
plate functions
SYNOPSIS
cc [ flag... ] file... -D_LARGEFILE64_SOURCE -lcontract [ library... ]
#include <libcontract.h>
#include <sys/contract/process.h>
int ct_pr_tmpl_set_transfer(int fd, ctid_t ctid);
int ct_pr_tmpl_set_fatal(int fd, uint_t events);
int ct_pr_tmpl_set_param(int fd, uint_t params);
int ct_pr_tmpl_set_svc_fmri(int fd, const char *fmri);
int ct_pr_tmpl_set_svc_aux(int fd, const char *aux);
int ct_pr_tmpl_get_transfer(int fd, ctid_t *ctidp);
int ct_pr_tmpl_get_fatal(int fd, uint_t *eventsp);
int ct_pr_tmpl_get_param(int fd, uint_t *paramsp);
int ct_pr_tmpl_get_svc_fmri(int fd, char *fmri, size_t size);
int ct_pr_tmpl_get_svc_aux(int fd, char *aux, size_t size);
DESCRIPTION
These functions read and write process contract terms and operate on
process contract template file descriptors obtained from the con‐
tract(5) file system.
The ct_pr_tmpl_set_transfer() and ct_pr_tmpl_get_transfer() functions
write and read the transfer contract term. The value is the ID of an
empty regent process contract owned by the caller whose inherited con‐
tracts are to be transferred to a newly created contract.
The ct_pr_tmpl_set_fatal() and ct_pr_tmpl_get_fatal() functions write
and read the fatal event set term. The value is a collection of bits as
described in process(5).
The ct_pr_tmpl_set_param() and ct_pr_tmpl_get_param() functions write
and read the parameter set term. The value is a collection of bits as
described in process(5).
The ct_pr_tmpl_set_svc_fmri() and ct_pr_tmpl_get_svc_fmri() functions
write and read the service FMRI value of a process contract template.
The ct_pr_tmpl_set_svc_fmri() function requires the caller to have the
{PRIV_CONTRACT_IDENTITY} privilege in its effective set.
The ct_pr_tmpl_set_svc_aux() and ct_pr_tmpl_get_svc_aux() functions
write and read the creator's auxiliary value of a process contract tem‐
plate.
RETURN VALUES
Upon successful completion, ct_pr_tmpl_set_transfer(),
ct_pr_tmpl_set_fatal(), ct_pr_tmpl_set_param(),
ct_pr_tmpl_set_svc_fmri(), ct_pr_tmpl_set_svc_aux(),
ct_pr_tmpl_get_transfer(), ct_pr_tmpl_get_fatal(), and
ct_pr_tmpl_get_param() return 0. Otherwise, they return a non-zero er‐
ror value.
Upon successful completion, ct_pr_tmpl_get_svc_fmri() and
ct_pr_tmpl_get_svc_aux() return the size required to store the value,
which is the same value return by strcpy(3C) + 1. Insufficient buffer
size can be checked by:
if (ct_pr_tmpl_get_svc_fmri(fd, fmri, size) > size)
/* buffer is too small */
Otherwise, ct_pr_tmpl_get_svc_fmri() and ct_pr_tmpl_get_svc_aux() re‐
turn -1 and set errno to indicate the error.
ERRORS
The ct_pr_tmpl_set_param(), ct_pr_tmpl_set_svc_fmri(),
ct_pr_tmpl_set_svc_aux(), ct_pr_tmpl_get_svc_fmri() and
ct_pr_tmpl_get_svc_aux() functions will fail if:
EINVAL An invalid parameter was specified.
The ct_pr_tmpl_set_fatal() function will fail if:
EINVAL An invalid event was specified.
The ct_pr_tmpl_set_transfer() function will fail if:
ESRCH The ID specified by ctid does not correspond to a process
contract.
EACCES The ID specified by ctid does not correspond to a process
contract owned by the calling process.
ENOTEMPTY The ID specified by ctid does not correspond to an empty
process contract.
The ct_pr_tmpl_set_svc_fmri() function will fail if:
EPERM The calling process does not have {PRIV_CONTRACT_IDENTITY} in
its effective set.
EXAMPLES
Example 1 Create and activate a process contract template.
The following example opens a new template, makes hardware errors and
signals fatal events, makes hardware errors critical events, and acti‐
vates the template. It then forks a process in the new contract using
the requested terms.
#include <libcontract.h>
#include <fcntl.h>
#include <unistd.h>
...
int fd;
fd = open("/system/contract/process/template", O_RDWR);
(void) ct_pr_tmpl_set_fatal(fd, CT_PR_EV_HWERR|CT_PR_EV_SIGNAL);
(void) ct_tmpl_set_critical(fd, CT_PR_EV_HWERR);
(void) ct_tmpl_activate(fd);
close(fd);
if (fork()) {
/* parent - owns new process contract */
...
} else {
/* child - in new process contract */
...
}
...
Example 2 Clear the process contract template.
The following example opens the template file and requests that the ac‐
tive template be cleared.
#include <libcontract.h>
#include <fcntl.h>
...
int fd;
fd = open("/system/contract/process/template", O_RDWR);
(void) ct_tmpl_clear(fd);
close(fd);
...
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelSafe
SEE ALSO
strcpy(3C), libcontract(3LIB), contract(5), process(5), attributes(7),
lfcompile(7)
Oracle Solaris 11.4 25 Feb 2008 ct...fer(3CONTRACT)