X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=python%2Fvserverimpl.c;h=9048e24e6308647e53e6c63fbb7660d3963075f9;hb=2c6cd25d5479da294af8ff5b4674cab739e87467;hp=ecfad2000baeb1b0e153ed94a134073554fdd2fa;hpb=471f8ae097d6c209b6cca044534aae586d514c00;p=util-vserver.git diff --git a/python/vserverimpl.c b/python/vserverimpl.c index ecfad20..9048e24 100644 --- a/python/vserverimpl.c +++ b/python/vserverimpl.c @@ -33,32 +33,238 @@ POSSIBILITY OF SUCH DAMAGE. #include -#include "compat.h" +#include +#include +#include + +#include "config.h" +#include "pathconfig.h" +#include "planetlab.h" +#include "virtual.h" #include "vserver.h" +#include "vserver-internal.h" +/* + * context create + */ static PyObject * vserver_chcontext(PyObject *self, PyObject *args) { + xid_t ctx; + uint32_t flags = 0; + uint32_t bcaps = ~vc_get_insecurebcaps(); + rspec_t rspec = { 32, VC_VXF_SCHED_FLAGS, -1, -1 }; + PyObject *resources; + PyObject *cpu_share; + + if (!PyArg_ParseTuple(args, "IO|K", &ctx, &resources, &flags)) + return NULL; + if (!PyMapping_Check(resources)) + { + PyErr_SetString(PyExc_TypeError, "invalid resources object"); + return NULL; + } + if ((cpu_share = PyMapping_GetItemString(resources, "nm_cpu_share")) && + (cpu_share = PyNumber_Int(cpu_share))) + rspec.cpu_share = PyInt_AsLong(cpu_share); + + if (pl_chcontext(ctx, flags, bcaps, &rspec)) + PyErr_SetFromErrno(PyExc_OSError); + + return Py_None; +} + +static PyObject * +vserver_set_rlimit(PyObject *self, PyObject *args) { + struct vc_rlimit limits; + xid_t xid; + int resource; + PyObject *ret; + + limits.min = VC_LIM_KEEP; + limits.soft = VC_LIM_KEEP; + limits.hard = VC_LIM_KEEP; + + if (!PyArg_ParseTuple(args, "IiL", &xid, &resource, &limits.hard)) + return NULL; + + ret = Py_None; + if (vc_set_rlimit(xid, resource, &limits)) + ret = PyErr_SetFromErrno(PyExc_OSError); + else if (vc_get_rlimit(xid, resource, &limits)==-1) + ret = PyErr_SetFromErrno(PyExc_OSError); + else + ret = Py_BuildValue("L",limits.hard); + + return ret; +} + +static PyObject * +vserver_get_rlimit(PyObject *self, PyObject *args) { + struct vc_rlimit limits; + xid_t xid; + int resource; + PyObject *ret; + + limits.min = VC_LIM_KEEP; + limits.soft = VC_LIM_KEEP; + limits.hard = VC_LIM_KEEP; + + if (!PyArg_ParseTuple(args, "Ii", &xid, &resource)) + return NULL; + + ret = Py_None; + if (vc_get_rlimit(xid, resource, &limits)==-1) + ret = PyErr_SetFromErrno(PyExc_OSError); + else + ret = Py_BuildValue("L",limits.hard); + + return ret; +} + +/* + * setsched + */ +static PyObject * +vserver_setsched(PyObject *self, PyObject *args) +{ + xid_t ctx; + rspec_t rspec = { 32, VC_VXF_SCHED_FLAGS, -1, -1 }; + PyObject *resources; + PyObject *cpu_share; + + if (!PyArg_ParseTuple(args, "IO", &ctx, &resources)) + return NULL; + if (!PyMapping_Check(resources)) + { + PyErr_SetString(PyExc_TypeError, "invalid resources object"); + return NULL; + } + if ((cpu_share = PyMapping_GetItemString(resources, "nm_cpu_share")) && + (cpu_share = PyNumber_Int(cpu_share))) + rspec.cpu_share = PyInt_AsLong(cpu_share); + + if (pl_setsched(ctx, rspec.cpu_share, rspec.cpu_sched_flags)) + PyErr_SetFromErrno(PyExc_OSError); + + return Py_None; +} + +static PyObject * +vserver_get_dlimit(PyObject *self, PyObject *args) +{ + PyObject *res; + char* path; + unsigned xid; + struct vcmd_ctx_dlimit_v0 data; + int r; + + if (!PyArg_ParseTuple(args, "si", &path,&xid)) + return NULL; + + memset(&data, 0, sizeof(data)); + data.name = path; + data.flags = 0; + r = vserver(VCMD_get_dlimit, xid, &data); + if (r>=0) { + res = Py_BuildValue("(i,i,i,i,i)", + data.space_used, + data.space_total, + data.inodes_used, + data.inodes_total, + data.reserved); + } else { + res = PyErr_SetFromErrno(PyExc_OSError); + } + + return res; +} + + +static PyObject * +vserver_set_dlimit(PyObject *self, PyObject *args) +{ + char* path; + unsigned xid; + struct vcmd_ctx_dlimit_base_v0 init; + struct vcmd_ctx_dlimit_v0 data; + + memset(&data,0,sizeof(data)); + if (!PyArg_ParseTuple(args, "siiiiii", &path, + &xid, + &data.space_used, + &data.space_total, + &data.inodes_used, + &data.inodes_total, + &data.reserved)) + return NULL; + + data.name = path; + data.flags = 0; + + memset(&init, 0, sizeof(init)); + init.name = path; + init.flags = 0; + + if ((vserver(VCMD_add_dlimit, xid, &init) && errno != EEXIST) || + vserver(VCMD_set_dlimit, xid, &data)) + return PyErr_SetFromErrno(PyExc_OSError); + + return Py_None; +} + +static PyObject * +vserver_unset_dlimit(PyObject *self, PyObject *args) +{ + char *path; unsigned xid; - unsigned caps_remove = 0; + struct vcmd_ctx_dlimit_base_v0 init; - if (!PyArg_ParseTuple(args, "I|I", &xid, &caps_remove)) + if (!PyArg_ParseTuple(args, "si", &path, &xid)) return NULL; - if (vc_new_s_context(xid, caps_remove, 0) < 0) + memset(&init, 0, sizeof(init)); + init.name = path; + init.flags = 0; + + if (vserver(VCMD_rem_dlimit, xid, &init) && errno != ESRCH) return PyErr_SetFromErrno(PyExc_OSError); - return Py_None; + return Py_None; } static PyMethodDef methods[] = { { "chcontext", vserver_chcontext, METH_VARARGS, - "Change to the given vserver context" }, + "chcontext to vserver with provided flags" }, + { "setsched", vserver_setsched, METH_VARARGS, + "Change vserver scheduling attributes for given vserver context" }, + { "setdlimit", vserver_set_dlimit, METH_VARARGS, + "Set disk limits for given vserver context" }, + { "unsetdlimit", vserver_unset_dlimit, METH_VARARGS, + "Remove disk limits for given vserver context" }, + { "getdlimit", vserver_get_dlimit, METH_VARARGS, + "Get disk limits for given vserver context" }, + { "setrlimit", vserver_set_rlimit, METH_VARARGS, + "Set resource limits for given resource of a vserver context" }, + { "getrlimit", vserver_get_rlimit, METH_VARARGS, + "Get resource limits for given resource of a vserver context" }, { NULL, NULL, 0, NULL } }; PyMODINIT_FUNC initvserverimpl(void) { - Py_InitModule("vserverimpl", methods); + PyObject *mod; + + mod = Py_InitModule("vserverimpl", methods); + + /* export the set of 'safe' capabilities */ + PyModule_AddIntConstant(mod, "CAP_SAFE", ~vc_get_insecurebcaps()); + + /* export the default vserver directory */ + PyModule_AddStringConstant(mod, "VSERVER_BASEDIR", DEFAULT_VSERVERDIR); + + /* export limit-related constants */ + PyModule_AddIntConstant(mod, "DLIMIT_KEEP", (int)CDLIM_KEEP); + PyModule_AddIntConstant(mod, "DLIMIT_INF", (int)CDLIM_INFINITY); }