diff options
Diffstat (limited to 'net/nfc')
| -rw-r--r-- | net/nfc/core.c | 22 | ||||
| -rw-r--r-- | net/nfc/hci/core.c | 2 | ||||
| -rw-r--r-- | net/nfc/netlink.c | 95 | ||||
| -rw-r--r-- | net/nfc/nfc.h | 5 |
4 files changed, 114 insertions, 10 deletions
diff --git a/net/nfc/core.c b/net/nfc/core.c index 1d074dd1650f..e92923cf3e03 100644 --- a/net/nfc/core.c +++ b/net/nfc/core.c @@ -77,11 +77,19 @@ error: return rc; } -int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name) +/** + * nfc_fw_download_done - inform that a firmware download was completed + * + * @dev: The nfc device to which firmware was downloaded + * @firmware_name: The firmware filename + * @result: The positive value of a standard errno value + */ +int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name, + u32 result) { dev->fw_download_in_progress = false; - return nfc_genl_fw_download_done(dev, firmware_name); + return nfc_genl_fw_download_done(dev, firmware_name, result); } EXPORT_SYMBOL(nfc_fw_download_done); @@ -129,7 +137,7 @@ int nfc_dev_up(struct nfc_dev *dev) /* We have to enable the device before discovering SEs */ if (dev->ops->discover_se) { rc = dev->ops->discover_se(dev); - if (!rc) + if (rc) pr_warn("SE discovery failed\n"); } @@ -575,12 +583,14 @@ int nfc_enable_se(struct nfc_dev *dev, u32 se_idx) goto error; } - if (se->type == NFC_SE_ENABLED) { + if (se->state == NFC_SE_ENABLED) { rc = -EALREADY; goto error; } rc = dev->ops->enable_se(dev, se_idx); + if (rc >= 0) + se->state = NFC_SE_ENABLED; error: device_unlock(&dev->dev); @@ -618,12 +628,14 @@ int nfc_disable_se(struct nfc_dev *dev, u32 se_idx) goto error; } - if (se->type == NFC_SE_DISABLED) { + if (se->state == NFC_SE_DISABLED) { rc = -EALREADY; goto error; } rc = dev->ops->disable_se(dev, se_idx); + if (rc >= 0) + se->state = NFC_SE_DISABLED; error: device_unlock(&dev->dev); diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c index fe66908401f5..d07ca4c5cf8c 100644 --- a/net/nfc/hci/core.c +++ b/net/nfc/hci/core.c @@ -717,7 +717,7 @@ static int hci_disable_se(struct nfc_dev *nfc_dev, u32 se_idx) struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); if (hdev->ops->disable_se) - return hdev->ops->enable_se(hdev, se_idx); + return hdev->ops->disable_se(hdev, se_idx); return 0; } diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index f16fd59d4160..68063b2025da 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -1114,7 +1114,8 @@ static int nfc_genl_fw_download(struct sk_buff *skb, struct genl_info *info) return rc; } -int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name) +int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name, + u32 result) { struct sk_buff *msg; void *hdr; @@ -1129,6 +1130,7 @@ int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name) goto free_msg; if (nla_put_string(msg, NFC_ATTR_FIRMWARE_NAME, firmware_name) || + nla_put_u32(msg, NFC_ATTR_FIRMWARE_DOWNLOAD_STATUS, result) || nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx)) goto nla_put_failure; @@ -1191,6 +1193,91 @@ static int nfc_genl_disable_se(struct sk_buff *skb, struct genl_info *info) return rc; } +static int nfc_genl_send_se(struct sk_buff *msg, struct nfc_dev *dev, + u32 portid, u32 seq, + struct netlink_callback *cb, + int flags) +{ + void *hdr; + struct nfc_se *se, *n; + + list_for_each_entry_safe(se, n, &dev->secure_elements, list) { + hdr = genlmsg_put(msg, portid, seq, &nfc_genl_family, flags, + NFC_CMD_GET_SE); + if (!hdr) + goto nla_put_failure; + + if (cb) + genl_dump_check_consistent(cb, hdr, &nfc_genl_family); + + if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) || + nla_put_u32(msg, NFC_ATTR_SE_INDEX, se->idx) || + nla_put_u8(msg, NFC_ATTR_SE_TYPE, se->type)) + goto nla_put_failure; + + if (genlmsg_end(msg, hdr) < 0) + goto nla_put_failure; + } + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int nfc_genl_dump_ses(struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0]; + struct nfc_dev *dev = (struct nfc_dev *) cb->args[1]; + bool first_call = false; + + if (!iter) { + first_call = true; + iter = kmalloc(sizeof(struct class_dev_iter), GFP_KERNEL); + if (!iter) + return -ENOMEM; + cb->args[0] = (long) iter; + } + + mutex_lock(&nfc_devlist_mutex); + + cb->seq = nfc_devlist_generation; + + if (first_call) { + nfc_device_iter_init(iter); + dev = nfc_device_iter_next(iter); + } + + while (dev) { + int rc; + + rc = nfc_genl_send_se(skb, dev, NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, cb, NLM_F_MULTI); + if (rc < 0) + break; + + dev = nfc_device_iter_next(iter); + } + + mutex_unlock(&nfc_devlist_mutex); + + cb->args[1] = (long) dev; + + return skb->len; +} + +static int nfc_genl_dump_ses_done(struct netlink_callback *cb) +{ + struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0]; + + nfc_device_iter_exit(iter); + kfree(iter); + + return 0; +} + static struct genl_ops nfc_genl_ops[] = { { .cmd = NFC_CMD_GET_DEVICE, @@ -1265,6 +1352,12 @@ static struct genl_ops nfc_genl_ops[] = { .doit = nfc_genl_disable_se, .policy = nfc_genl_policy, }, + { + .cmd = NFC_CMD_GET_SE, + .dumpit = nfc_genl_dump_ses, + .done = nfc_genl_dump_ses_done, + .policy = nfc_genl_policy, + }, }; diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h index 820a7850c36a..aaf606fc1faa 100644 --- a/net/nfc/nfc.h +++ b/net/nfc/nfc.h @@ -124,9 +124,8 @@ static inline void nfc_device_iter_exit(struct class_dev_iter *iter) } int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name); -int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name); - -int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name); +int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name, + u32 result); int nfc_dev_up(struct nfc_dev *dev); |