diff options
| author | Christophe Ricard <christophe.ricard@gmail.com> | 2014-12-02 21:27:51 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2014-12-02 22:47:56 +0100 |
| commit | cd96db6fd0ac1c352e386fb2c632c455bf501e1f (patch) | |
| tree | 1c8ffbb1692caaf2748cc2784d7ed0f13bedfc84 /net/nfc | |
| parent | NFC: netlink: Add new netlink command NFC_CMD_ACTIVATE_TARGET (diff) | |
| download | linux-cd96db6fd0ac1c352e386fb2c632c455bf501e1f.tar.xz linux-cd96db6fd0ac1c352e386fb2c632c455bf501e1f.zip | |
NFC: Add se_io NFC operand
se_io allows to send apdu over the CLF to the embedded
Secure Element.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc')
| -rw-r--r-- | net/nfc/netlink.c | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index 95818314aea6..44989fc8cddf 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -1310,6 +1310,51 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb) return 0; } +static int nfc_se_io(struct nfc_dev *dev, u32 se_idx, + u8 *apdu, size_t apdu_length, + se_io_cb_t cb, void *cb_context) +{ + struct nfc_se *se; + int rc; + + pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx); + + device_lock(&dev->dev); + + if (!device_is_registered(&dev->dev)) { + rc = -ENODEV; + goto error; + } + + if (!dev->dev_up) { + rc = -ENODEV; + goto error; + } + + if (!dev->ops->se_io) { + rc = -EOPNOTSUPP; + goto error; + } + + se = nfc_find_se(dev, se_idx); + if (!se) { + rc = -EINVAL; + goto error; + } + + if (se->state != NFC_SE_ENABLED) { + rc = -ENODEV; + goto error; + } + + rc = dev->ops->se_io(dev, se_idx, apdu, + apdu_length, cb, cb_context); + +error: + device_unlock(&dev->dev); + return rc; +} + struct se_io_ctx { u32 dev_idx; u32 se_idx; @@ -1392,7 +1437,7 @@ static int nfc_genl_se_io(struct sk_buff *skb, struct genl_info *info) ctx->dev_idx = dev_idx; ctx->se_idx = se_idx; - return dev->ops->se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx); + return nfc_se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx); } static const struct genl_ops nfc_genl_ops[] = { |