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path: root/api/database/v2/handlers.py
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##############################################################################
# Copyright (c) 2017 Huawei Technologies Co.,Ltd.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from api.database import db_session
from api.database.v2.models import V2Environment
from api.database.v2.models import V2Openrc
from api.database.v2.models import V2Image
from api.database.v2.models import V2Pod
from api.database.v2.models import V2Container
from api.database.v2.models import V2Project
from api.database.v2.models import V2Task


class V2EnvironmentHandler(object):

    def insert(self, kwargs):
        environment = V2Environment(**kwargs)
        db_session.add(environment)
        db_session.commit()
        return environment

    def get_by_uuid(self, uuid):
        environment = V2Environment.query.filter_by(uuid=uuid).first()
        if not environment:
            raise ValueError
        return environment

    def update_attr(self, uuid, attr):
        environment = self.get_by_uuid(uuid)
        for k, v in attr.items():
            setattr(environment, k, v)
        db_session.commit()

    def append_attr(self, uuid, attr):
        environment = self.get_by_uuid(uuid)
        for k, v in attr.items():
            value = getattr(environment, k)
            new = '{},{}'.format(value, v) if value else v
            setattr(environment, k, new)
        db_session.commit()

    def delete_by_uuid(self, uuid):
        environment = self.get_by_uuid(uuid)
        db_session.delete(environment)
        db_session.commit()


class V2OpenrcHandler(object):

    def insert(self, kwargs):
        openrc = V2Openrc(**kwargs)
        db_session.add(openrc)
        db_session.commit()
        return openrc

    def get_by_uuid(self, uuid):
        openrc = V2Openrc.query.filter_by(uuid=uuid).first()
        if not openrc:
            raise ValueError
        return openrc

    def delete_by_uuid(self, uuid):
        openrc = self.get_by_uuid(uuid)
        db_session.delete(openrc)
        db_session.commit()


class V2ImageHandler(object):

    def insert(self, kwargs):
        image = V2Image(**kwargs)
        db_session.add(image)
        db_session.commit()
        return image

    def get_by_uuid(self, uuid):
        image = V2Image.query.filter_by(uuid=uuid).first()
        if not image:
            raise ValueError
        return image


class V2PodHandler(object):

    def insert(self, kwargs):
        pod = V2Pod(**kwargs)
        db_session.add(pod)
        db_session.commit()
        return pod

    def get_by_uuid(self, uuid):
        pod = V2Pod.query.filter_by(uuid=uuid).first()
        if not pod:
            raise ValueError
        return pod

    def delete_by_uuid(self, uuid):
        pod = self.get_by_uuid(uuid)
        db_session.delete(pod)
        db_session.commit()


class V2ContainerHandler(object):

    def insert(self, kwargs):
        container = V2Container(**kwargs)
        db_session.add(container)
        db_session.commit()
        return container

    def get_by_uuid(self, uuid):
        container = V2Container.query.filter_by(uuid=uuid).first()
        if not container:
            raise ValueError
        return container

    def delete_by_uuid(self, uuid):
        container = self.get_by_uuid(uuid)
        db_session.delete(container)
        db_session.commit()


class V2ProjectHandler(object):

    def insert(self, kwargs):
        project = V2Project(**kwargs)
        db_session.add(project)
        db_session.commit()
        return project

    def get_by_uuid(self, uuid):
        project = V2Project.query.filter_by(uuid=uuid).first()
        if not project:
            raise ValueError
        return project

    def update_attr(self, uuid, attr):
        project = self.get_by_uuid(uuid)
        for k, v in attr.items():
            setattr(project, k, v)
        db_session.commit()

    def append_attr(self, uuid, attr):
        project = self.get_by_uuid(uuid)
        for k, v in attr.items():
            value = getattr(project, k)
            new = '{},{}'.format(value, v) if value else v
            setattr(project, k, new)
        db_session.commit()

    def delete_by_uuid(self, uuid):
        project = self.get_by_uuid(uuid)
        db_session.delete(project)
        db_session.commit()


class V2TaskHandler(object):

    def insert(self, kwargs):
        task = V2Task(**kwargs)
        db_session.add(task)
        db_session.commit()
        return task

    def get_by_uuid(self, uuid):
        task = V2Task.query.filter_by(uuid=uuid).first()
        if not task:
            raise ValueError
        return task

    def update_attr(self, uuid, attr):
        task = self.get_by_uuid(uuid)
        for k, v in attr.items():
            setattr(task, k, v)
        db_session.commit()

    def delete_by_uuid(self, uuid):
        task = self.get_by_uuid(uuid)
        db_session.delete(task)
        db_session.commit()
us register (byte access): * UNKNOWN, MAGICAL MYSTERY REGISTER * */ #define WD_TIMER_REGSZ 16 #define WD0_OFF 0 #define WD1_OFF (WD_TIMER_REGSZ * 1) #define WD2_OFF (WD_TIMER_REGSZ * 2) #define PLD_OFF (WD_TIMER_REGSZ * 3) #define WD_DCNTR 0x00 #define WD_LIMIT 0x04 #define WD_STATUS 0x08 #define PLD_IMASK (PLD_OFF + 0x00) #define PLD_STATUS (PLD_OFF + 0x04) static struct timer_list cpwd_timer; static int wd0_timeout; static int wd1_timeout; static int wd2_timeout; module_param(wd0_timeout, int, 0); MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs"); module_param(wd1_timeout, int, 0); MODULE_PARM_DESC(wd1_timeout, "Default watchdog1 timeout in 1/10secs"); module_param(wd2_timeout, int, 0); MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs"); MODULE_AUTHOR("Eric Brower <ebrower@usa.net>"); MODULE_DESCRIPTION("Hardware watchdog driver for Sun Microsystems CP1400/1500"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("watchdog"); static void cpwd_writew(u16 val, void __iomem *addr) { writew(cpu_to_le16(val), addr); } static u16 cpwd_readw(void __iomem *addr) { u16 val = readw(addr); return le16_to_cpu(val); } static void cpwd_writeb(u8 val, void __iomem *addr) { writeb(val, addr); } static u8 cpwd_readb(void __iomem *addr) { return readb(addr); } /* Enable or disable watchdog interrupts * Because of the CP1400 defect this should only be * called during initialzation or by wd_[start|stop]timer() * * index - sub-device index, or -1 for 'all' * enable - non-zero to enable interrupts, zero to disable */ static void cpwd_toggleintr(struct cpwd *p, int index, int enable) { unsigned char curregs = cpwd_readb(p->regs + PLD_IMASK); unsigned char setregs = (index == -1) ? (WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) : (p->devs[index].intr_mask); if (enable == WD_INTR_ON) curregs &= ~setregs; else curregs |= setregs; cpwd_writeb(curregs, p->regs + PLD_IMASK); } /* Restarts timer with maximum limit value and * does not unset 'brokenstop' value. */ static void cpwd_resetbrokentimer(struct cpwd *p, int index) { cpwd_toggleintr(p, index, WD_INTR_ON); cpwd_writew(WD_BLIMIT, p->devs[index].regs + WD_LIMIT); } /* Timer method called to reset stopped watchdogs-- * because of the PLD bug on CP1400, we cannot mask * interrupts within the PLD so me must continually * reset the timers ad infinitum. */ static void cpwd_brokentimer(unsigned long data) { struct cpwd *p = (struct cpwd *) data; int id, tripped = 0; /* kill a running timer instance, in case we * were called directly instead of by kernel timer */ if (timer_pending(&cpwd_timer)) del_timer(&cpwd_timer); for (id = 0; id < WD_NUMDEVS; id++) { if (p->devs[id].runstatus & WD_STAT_BSTOP) { ++tripped; cpwd_resetbrokentimer(p, id); } } if (tripped) { /* there is at least one timer brokenstopped-- reschedule */ cpwd_timer.expires = WD_BTIMEOUT; add_timer(&cpwd_timer); } } /* Reset countdown timer with 'limit' value and continue countdown. * This will not start a stopped timer. */ static void cpwd_pingtimer(struct cpwd *p, int index) { if (cpwd_readb(p->devs[index].regs + WD_STATUS) & WD_S_RUNNING) cpwd_readw(p->devs[index].regs + WD_DCNTR); } /* Stop a running watchdog timer-- the timer actually keeps * running, but the interrupt is masked so that no action is * taken upon expiration. */ static void cpwd_stoptimer(struct cpwd *p, int index) { if (cpwd_readb(p->devs[index].regs + WD_STATUS) & WD_S_RUNNING) { cpwd_toggleintr(p, index, WD_INTR_OFF); if (p->broken) { p->devs[index].runstatus |= WD_STAT_BSTOP; cpwd_brokentimer((unsigned long) p); } } } /* Start a watchdog timer with the specified limit value * If the watchdog is running, it will be restarted with * the provided limit value. * * This function will enable interrupts on the specified * watchdog. */ static void cpwd_starttimer(struct cpwd *p, int index) { if (p->broken) p->devs[index].runstatus &= ~WD_STAT_BSTOP; p->devs[index].runstatus &= ~WD_STAT_SVCD; cpwd_writew(p->devs[index].timeout, p->devs[index].regs + WD_LIMIT); cpwd_toggleintr(p, index, WD_INTR_ON); } static int cpwd_getstatus(struct cpwd *p, int index) { unsigned char stat = cpwd_readb(p->devs[index].regs + WD_STATUS); unsigned char intr = cpwd_readb(p->devs[index].regs + PLD_IMASK); unsigned char ret = WD_STOPPED; /* determine STOPPED */ if (!stat) return ret; /* determine EXPIRED vs FREERUN vs RUNNING */ else if (WD_S_EXPIRED & stat) { ret = WD_EXPIRED; } else if (WD_S_RUNNING & stat) { if (intr & p->devs[index].intr_mask) { ret = WD_FREERUN; } else { /* Fudge WD_EXPIRED status for defective CP1400-- * IF timer is running * AND brokenstop is set * AND an interrupt has been serviced * we are WD_EXPIRED. * * IF timer is running * AND brokenstop is set * AND no interrupt has been serviced * we are WD_FREERUN. */ if (p->broken && (p->devs[index].runstatus & WD_STAT_BSTOP)) { if (p->devs[index].runstatus & WD_STAT_SVCD) { ret = WD_EXPIRED; } else { /* we could as well pretend * we are expired */ ret = WD_FREERUN; } } else { ret = WD_RUNNING; } } } /* determine SERVICED */ if (p->devs[index].runstatus & WD_STAT_SVCD) ret |= WD_SERVICED; return ret; } static irqreturn_t cpwd_interrupt(int irq, void *dev_id) { struct cpwd *p = dev_id; /* Only WD0 will interrupt-- others are NMI and we won't * see them here.... */ spin_lock_irq(&p->lock); cpwd_stoptimer(p, WD0_ID); p->devs[WD0_ID].runstatus |= WD_STAT_SVCD; spin_unlock_irq(&p->lock); return IRQ_HANDLED; } static int cpwd_open(struct inode *inode, struct file *f) { struct cpwd *p = cpwd_device; mutex_lock(&cpwd_mutex); switch (iminor(inode)) { case WD0_MINOR: case WD1_MINOR: case WD2_MINOR: break; default: mutex_unlock(&cpwd_mutex); return -ENODEV; } /* Register IRQ on first open of device */ if (!p->initialized) { if (request_irq(p->irq, &cpwd_interrupt, IRQF_SHARED, DRIVER_NAME, p)) { pr_err("Cannot register IRQ %d\n", p->irq); mutex_unlock(&cpwd_mutex); return -EBUSY; } p->initialized = true; } mutex_unlock(&cpwd_mutex); return nonseekable_open(inode, f); } static int cpwd_release(struct inode *inode, struct file *file) { return 0; } static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { static const struct watchdog_info info = { .options = WDIOF_SETTIMEOUT, .firmware_version = 1, .identity = DRIVER_NAME, }; void __user *argp = (void __user *)arg; struct inode *inode = file_inode(file); int index = iminor(inode) - WD0_MINOR; struct cpwd *p = cpwd_device; int setopt = 0; switch (cmd) { /* Generic Linux IOCTLs */ case WDIOC_GETSUPPORT: if (copy_to_user(argp, &info, sizeof(struct watchdog_info))) return -EFAULT; break; case WDIOC_GETSTATUS: case WDIOC_GETBOOTSTATUS: if (put_user(0, (int __user *)argp)) return -EFAULT; break; case WDIOC_KEEPALIVE: cpwd_pingtimer(p, index); break; case WDIOC_SETOPTIONS: if (copy_from_user(&setopt, argp, sizeof(unsigned int))) return -EFAULT; if (setopt & WDIOS_DISABLECARD) { if (p->enabled) return -EINVAL; cpwd_stoptimer(p, index); } else if (setopt & WDIOS_ENABLECARD) { cpwd_starttimer(p, index); } else { return -EINVAL; } break; /* Solaris-compatible IOCTLs */ case WIOCGSTAT: setopt = cpwd_getstatus(p, index); if (copy_to_user(argp, &setopt, sizeof(unsigned int))) return -EFAULT; break; case WIOCSTART: cpwd_starttimer(p, index); break; case WIOCSTOP: if (p->enabled) return -EINVAL; cpwd_stoptimer(p, index); break; default: return -EINVAL; } return 0; } static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int rval = -ENOIOCTLCMD; switch (cmd) { /* solaris ioctls are specific to this driver */ case WIOCSTART: case WIOCSTOP: case WIOCGSTAT: mutex_lock(&cpwd_mutex); rval = cpwd_ioctl(file, cmd, arg); mutex_unlock(&cpwd_mutex); break; /* everything else is handled by the generic compat layer */ default: break; } return rval; } static ssize_t cpwd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct inode *inode = file_inode(file); struct cpwd *p = cpwd_device; int index = iminor(inode); if (count) { cpwd_pingtimer(p, index); return 1; } return 0; } static ssize_t cpwd_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { return -EINVAL; } static const struct file_operations cpwd_fops = { .owner = THIS_MODULE, .unlocked_ioctl = cpwd_ioctl, .compat_ioctl = cpwd_compat_ioctl, .open = cpwd_open, .write = cpwd_write, .read = cpwd_read, .release = cpwd_release, .llseek = no_llseek, }; static int cpwd_probe(struct platform_device *op) { struct device_node *options; const char *str_prop; const void *prop_val; int i, err = -EINVAL; struct cpwd *p; if (cpwd_device) return -EINVAL; p = kzalloc(sizeof(*p), GFP_KERNEL); err = -ENOMEM; if (!p) { pr_err("Unable to allocate struct cpwd\n"); goto out; } p->irq = op->archdata.irqs[0]; spin_lock_init(&p->lock); p->regs = of_ioremap(&op->resource[0], 0, 4 * WD_TIMER_REGSZ, DRIVER_NAME); if (!p->regs) { pr_err("Unable to map registers\n"); goto out_free; } options = of_find_node_by_path("/options"); err = -ENODEV; if (!options) { pr_err("Unable to find /options node\n"); goto out_iounmap; } prop_val = of_get_property(options, "watchdog-enable?", NULL); p->enabled = (prop_val ? true : false); prop_val = of_get_property(options, "watchdog-reboot?", NULL); p->reboot = (prop_val ? true : false); str_prop = of_get_property(options, "watchdog-timeout", NULL); if (str_prop) p->timeout = simple_strtoul(str_prop, NULL, 10); /* CP1400s seem to have broken PLD implementations-- the * interrupt_mask register cannot be written, so no timer * interrupts can be masked within the PLD. */ str_prop = of_get_property(op->dev.of_node, "model", NULL); p->broken = (str_prop && !strcmp(str_prop, WD_BADMODEL)); if (!p->enabled) cpwd_toggleintr(p, -1, WD_INTR_OFF); for (i = 0; i < WD_NUMDEVS; i++) { static const char *cpwd_names[] = { "RIC", "XIR", "POR" }; static int *parms[] = { &wd0_timeout, &wd1_timeout, &wd2_timeout }; struct miscdevice *mp = &p->devs[i].misc; mp->minor = WD0_MINOR + i; mp->name = cpwd_names[i]; mp->fops = &cpwd_fops; p->devs[i].regs = p->regs + (i * WD_TIMER_REGSZ); p->devs[i].intr_mask = (WD0_INTR_MASK << i); p->devs[i].runstatus &= ~WD_STAT_BSTOP; p->devs[i].runstatus |= WD_STAT_INIT; p->devs[i].timeout = p->timeout; if (*parms[i]) p->devs[i].timeout = *parms[i]; err = misc_register(&p->devs[i].misc); if (err) { pr_err("Could not register misc device for dev %d\n", i); goto out_unregister; } } if (p->broken) { init_timer(&cpwd_timer); cpwd_timer.function = cpwd_brokentimer; cpwd_timer.data = (unsigned long) p; cpwd_timer.expires = WD_BTIMEOUT; pr_info("PLD defect workaround enabled for model %s\n", WD_BADMODEL); } platform_set_drvdata(op, p); cpwd_device = p; err = 0; out: return err; out_unregister: for (i--; i >= 0; i--) misc_deregister(&p->devs[i].misc); out_iounmap: of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ); out_free: kfree(p); goto out; } static int cpwd_remove(struct platform_device *op) { struct cpwd *p = platform_get_drvdata(op); int i; for (i = 0; i < WD_NUMDEVS; i++) { misc_deregister(&p->devs[i].misc); if (!p->enabled) { cpwd_stoptimer(p, i); if (p->devs[i].runstatus & WD_STAT_BSTOP) cpwd_resetbrokentimer(p, i); } } if (p->broken) del_timer_sync(&cpwd_timer); if (p->initialized) free_irq(p->irq, p); of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ); kfree(p); cpwd_device = NULL; return 0; } static const struct of_device_id cpwd_match[] = { { .name = "watchdog", }, {}, }; MODULE_DEVICE_TABLE(of, cpwd_match); static struct platform_driver cpwd_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = cpwd_match, }, .probe = cpwd_probe, .remove = cpwd_remove, }; module_platform_driver(cpwd_driver);