cregit-Linux how code gets into the kernel

Release 4.8 net/irda/irnetlink.c

Directory: net/irda
 * IrDA netlink layer, for stack configuration.
 * Copyright (c) 2007 Samuel Ortiz <>
 * Partly based on the 802.11 nelink implementation
 * (see net/wireless/nl80211.c) which is:
 * Copyright 2006 Johannes Berg <>
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.

#include <linux/socket.h>
#include <linux/irda.h>
#include <linux/gfp.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/irda/irda.h>
#include <net/irda/irlap.h>
#include <net/genetlink.h>

static struct genl_family irda_nl_family = {
	.name = IRDA_NL_NAME,
	.hdrsize = 0,
	.version = IRDA_NL_VERSION,
	.maxattr = IRDA_NL_CMD_MAX,

static struct net_device * ifname_to_netdev(struct net *net, struct genl_info *info) { char * ifname; if (!info->attrs[IRDA_NL_ATTR_IFNAME]) return NULL; ifname = nla_data(info->attrs[IRDA_NL_ATTR_IFNAME]); pr_debug("%s(): Looking for %s\n", __func__, ifname); return dev_get_by_name(net, ifname); }


samuel ortizsamuel ortiz5585.94%125.00%
eric w. biedermaneric w. biederman710.94%125.00%
joe perchesjoe perches11.56%125.00%
harvey harrisonharvey harrison11.56%125.00%

static int irda_nl_set_mode(struct sk_buff *skb, struct genl_info *info) { struct net_device * dev; struct irlap_cb * irlap; u32 mode; if (!info->attrs[IRDA_NL_ATTR_MODE]) return -EINVAL; mode = nla_get_u32(info->attrs[IRDA_NL_ATTR_MODE]); pr_debug("%s(): Switching to mode: %d\n", __func__, mode); dev = ifname_to_netdev(&init_net, info); if (!dev) return -ENODEV; irlap = (struct irlap_cb *)dev->atalk_ptr; if (!irlap) { dev_put(dev); return -ENODEV; } irlap->mode = mode; dev_put(dev); return 0; }


samuel ortizsamuel ortiz11995.97%125.00%
eric w. biedermaneric w. biederman32.42%125.00%
harvey harrisonharvey harrison10.81%125.00%
joe perchesjoe perches10.81%125.00%

static int irda_nl_get_mode(struct sk_buff *skb, struct genl_info *info) { struct net_device * dev; struct irlap_cb * irlap; struct sk_buff *msg; void *hdr; int ret = -ENOBUFS; dev = ifname_to_netdev(&init_net, info); if (!dev) return -ENODEV; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) { dev_put(dev); return -ENOMEM; } irlap = (struct irlap_cb *)dev->atalk_ptr; if (!irlap) { ret = -ENODEV; goto err_out; } hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &irda_nl_family, 0, IRDA_NL_CMD_GET_MODE); if (hdr == NULL) { ret = -EMSGSIZE; goto err_out; } if(nla_put_string(msg, IRDA_NL_ATTR_IFNAME, dev->name)) goto err_out; if(nla_put_u32(msg, IRDA_NL_ATTR_MODE, irlap->mode)) goto err_out; genlmsg_end(msg, hdr); return genlmsg_reply(msg, info); err_out: nlmsg_free(msg); dev_put(dev); return ret; }


samuel ortizsamuel ortiz20195.26%116.67%
julius volzjulius volz41.90%116.67%
eric w. biedermaneric w. biederman41.90%233.33%
johannes bergjohannes berg10.47%116.67%
pablo neira ayusopablo neira ayuso10.47%116.67%

static const struct nla_policy irda_nl_policy[IRDA_NL_ATTR_MAX + 1] = { [IRDA_NL_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, [IRDA_NL_ATTR_MODE] = { .type = NLA_U32 }, }; static const struct genl_ops irda_nl_ops[] = { { .cmd = IRDA_NL_CMD_SET_MODE, .doit = irda_nl_set_mode, .policy = irda_nl_policy, .flags = GENL_ADMIN_PERM, }, { .cmd = IRDA_NL_CMD_GET_MODE, .doit = irda_nl_get_mode, .policy = irda_nl_policy, /* can be retrieved by unprivileged users */ }, };
int irda_nl_register(void) { return genl_register_family_with_ops(&irda_nl_family, irda_nl_ops); }


samuel ortizsamuel ortiz1593.75%150.00%
michal miroslawmichal miroslaw16.25%150.00%

void irda_nl_unregister(void) { genl_unregister_family(&irda_nl_family); }


samuel ortizsamuel ortiz13100.00%1100.00%

Overall Contributors

samuel ortizsamuel ortiz54494.28%215.38%
eric w. biedermaneric w. biederman172.95%215.38%
julius volzjulius volz40.69%17.69%
tejun heotejun heo30.52%17.69%
johannes bergjohannes berg20.35%215.38%
joe perchesjoe perches20.35%17.69%
harvey harrisonharvey harrison20.35%17.69%
alexey dobriyanalexey dobriyan10.17%17.69%
pablo neira ayusopablo neira ayuso10.17%17.69%
michal miroslawmichal miroslaw10.17%17.69%
Directory: net/irda
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