Commit graph

814 commits

Author SHA1 Message Date
Stefan Roese
29caf9305b cyclic: Use schedule() instead of WATCHDOG_RESET()
Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
2022-09-18 10:26:33 +02:00
Simon Glass
4e4bf9449b common: Drop display_options.h from common header
Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-10 13:46:55 -04:00
Andre Kalb
5e6e41b3ba net: bootp: Make root path (option 17) length configurable
to adjust the root path length.
Eg to 256 from Linux Kernel

Signed-off-by: Andre Kalb <andre.kalb@sma.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
[trini: Guard extern so that !CONFIG_NET platforms will build]
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-08 10:49:51 -04:00
Tom Rini
17ead040d4 Audit <flash.h> inclusion
A large number of files include <flash.h> as it used to be how various
SPI flash related functions were found, or for other reasons entirely.
In order to migrate some further CONFIG symbols to Kconfig we need to
not include flash.h in cases where we don't have a NOR flash of some
sort enabled.  Furthermore, in cases where we are in common code and it
doesn't make sense to try and further refactor the code itself in to new
files we need to guard this inclusion.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-04 16:18:47 -04:00
Tom Rini
52938fc4f0 net: Remove CONFIG_SYS_DIRECT_FLASH_TFTP
No platforms enable the functionality to tftp directly to NOR flash, and
this is discouraged by the documentation.  Remove this code.  Further,
this highlights an oddity of the code.  Un-indent the start of this
function.

Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-04 16:18:47 -04:00
Tom Rini
52af0101be Merge branch 'master' into next
Merge in v2022.07-rc5.
2022-06-20 14:40:59 -04:00
Marek Vasut
3c07d639ed net: Fix discuss discard typo
Replace discuss with discard, that is what happens with packet with
incorrect checksum. Fix the typo.

Fixes: 4b37fd146b ("Convert CONFIG_UDP_CHECKSUM to Kconfig")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
2022-06-16 18:51:07 -04:00
Sean Anderson
97d0f9bfdd net: Add support for reading mac addresses from nvmem cells
This adds support for reading mac addresses from the "mac-address" nvmem
cell. If there is no (local-)mac-address property, then we will try
reading from an nvmem cell.

For some existing examples of this property, refer to imx8mn.dtsi and
imx8mp.dtsi. Unfortunately, fuse drivers have not yet been converted
to DM.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-08 14:00:22 -04:00
Sean Anderson
2a5af4049c net: dsa: Fix segmentation fault if master fails to probe
If the DSA master fails to probe for whatever reason, then DSA devices
will continue on as if nothing is wrong. This can cause incorrect
behavior. In particular, on sandbox, dsa_sandbox_probe attempts to
access the master's private data. This is only safe to do if the master
has been probed first. Fix this by probing the master after we look it
up, and bailing out if we get an error.

Fixes: fc054d563b ("net: Introduce DSA class for Ethernet switches")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-06-08 13:59:53 -04:00
Fabio Estevam
b85d130ea0 net: Check for the minimum IP fragmented datagram size
Nicolas Bidron and Nicolas Guigo reported the two bugs below:

"
----------BUG 1----------

In compiled versions of U-Boot that define CONFIG_IP_DEFRAG, a value of
`ip->ip_len` (IP packet header's Total Length) higher than `IP_HDR_SIZE`
and strictly lower than `IP_HDR_SIZE+8` will lead to a value for `len`
comprised between `0` and `7`. This will ultimately result in a
truncated division by `8` resulting value of `0` forcing the hole
metadata and fragment to point to the same location. The subsequent
memcopy will overwrite the hole metadata with the fragment data. Through
a second fragment, this can be exploited to write to an arbitrary offset
controlled by that overwritten hole metadata value.

This bug is only exploitable locally as it requires crafting two packets
the first of which would most likely be dropped through routing due to
its unexpectedly low Total Length. However, this bug can potentially be
exploited to root linux based embedded devices locally.

```C
static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
{
     static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
     static u16 first_hole, total_len;
     struct hole *payload, *thisfrag, *h, *newh;
     struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
     uchar *indata = (uchar *)ip;
     int offset8, start, len, done = 0;
     u16 ip_off = ntohs(ip->ip_off);

     /* payload starts after IP header, this fragment is in there */
     payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
     offset8 =  (ip_off & IP_OFFS);
     thisfrag = payload + offset8;
     start = offset8 * 8;
     len = ntohs(ip->ip_len) - IP_HDR_SIZE;
```

The last line of the previous excerpt from `u-boot/net/net.c` shows how
the attacker can control the value of `len` to be strictly lower than
`8` by issuing a packet with `ip_len` between `21` and `27`
(`IP_HDR_SIZE` has a value of `20`).

Also note that `offset8` here is `0` which leads to `thisfrag = payload`.

```C
     } else if (h >= thisfrag) {
         /* overlaps with initial part of the hole: move this hole */
         newh = thisfrag + (len / 8);
         *newh = *h;
         h = newh;
         if (h->next_hole)
             payload[h->next_hole].prev_hole = (h - payload);
         if (h->prev_hole)
             payload[h->prev_hole].next_hole = (h - payload);
         else
             first_hole = (h - payload);

     } else {
```

Lower down the same function, execution reaches the above code path.
Here, `len / 8` evaluates to `0` leading to `newh = thisfrag`. Also note
that `first_hole` here is `0` since `h` and `payload` point to the same
location.

```C
     /* finally copy this fragment and possibly return whole packet */
     memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
```

Finally, in the above excerpt the `memcpy` overwrites the hole metadata
since `thisfrag` and `h` both point to the same location. The hole
metadata is effectively overwritten with arbitrary data from the
fragmented IP packet data. If `len` was crafted to be `6`, `last_byte`,
`next_hole`, and `prev_hole` of the `first_hole` can be controlled by
the attacker.

Finally the arbitrary offset write occurs through a second fragment that
only needs to be crafted to write data in the hole pointed to by the
previously controlled hole metadata (`next_hole`) from the first packet.

 ### Recommendation

Handle cases where `len` is strictly lower than 8 by preventing the
overwrite of the hole metadata during the memcpy of the fragment. This
could be achieved by either:
* Moving the location where the hole metadata is stored when `len` is
lower than `8`.
* Or outright rejecting fragmented IP datagram with a Total Length
(`ip_len`) lower than 28 bytes which is the minimum valid fragmented IP
datagram size (as defined as the minimum fragment of 8 octets in the IP
Specification Document:
[RFC791](https://datatracker.ietf.org/doc/html/rfc791) page 25).

----------BUG 2----------

In compiled versions of U-Boot that define CONFIG_IP_DEFRAG, a value of
`ip->ip_len` (IP packet header's Total Length) lower than `IP_HDR_SIZE`
will lead to a negative value for `len` which will ultimately result in
a buffer overflow during the subsequent `memcpy` that uses `len` as it's
`count` parameter.

This bug is only exploitable on local ethernet as it requires crafting
an invalid packet to include an unexpected `ip_len` value in the IP UDP
header that's lower than the minimum accepted Total Length of a packet
(21 as defined in the IP Specification Document:
[RFC791](https://datatracker.ietf.org/doc/html/rfc791)). Such packet
would in all likelihood be dropped while being routed to its final
destination through most routing equipment and as such requires the
attacker to be in a local position in order to be exploited.

```C
static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
{
     static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
     static u16 first_hole, total_len;
     struct hole *payload, *thisfrag, *h, *newh;
     struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
     uchar *indata = (uchar *)ip;
     int offset8, start, len, done = 0;
     u16 ip_off = ntohs(ip->ip_off);

     /* payload starts after IP header, this fragment is in there */
     payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
     offset8 =  (ip_off & IP_OFFS);
     thisfrag = payload + offset8;
     start = offset8 * 8;
     len = ntohs(ip->ip_len) - IP_HDR_SIZE;
```

The last line of the previous excerpt from `u-boot/net/net.c` shows
where the underflow to a negative `len` value occurs if `ip_len` is set
to a value strictly lower than 20 (`IP_HDR_SIZE` being 20). Also note
that in the above excerpt the `pkt_buff` buffer has a size of
`CONFIG_NET_MAXDEFRAG` which defaults to 16 KB but can range from 1KB to
64 KB depending on configurations.

```C
     /* finally copy this fragment and possibly return whole packet */
     memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
```

In the above excerpt the `memcpy` overflows the destination by
attempting to make a copy of nearly 4 gigabytes in a buffer that's
designed to hold `CONFIG_NET_MAXDEFRAG` bytes at most which leads to a DoS.

 ### Recommendation

Stop processing of the packet if `ip_len` is lower than 21 (as defined
by the minimum length of a data carrying datagram in the IP
Specification Document:
[RFC791](https://datatracker.ietf.org/doc/html/rfc791) page 34)."

Add a check for ip_len lesser than 28 and stop processing the packet
in this case.

Such a check covers the two reported bugs.

Reported-by: Nicolas Bidron <nicolas.bidron@nccgroup.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-06-03 11:15:24 -04:00
Andrea zi0Black Cappa
bdbf7a05e2 net: nfs: Fix CVE-2022-30767 (old CVE-2019-14196)
This patch mitigates the vulnerability identified via CVE-2019-14196.

The previous patch was bypassed/ineffective, and now the vulnerability
is identified via CVE-2022-30767. The patch removes the sanity check
introduced to mitigate CVE-2019-14196 since it's ineffective.
filefh3_length is changed to unsigned type integer, preventing negative
numbers from being used during comparison with positive values during
size sanity checks.

Signed-off-by: Andrea zi0Black Cappa <zi0Black@protonmail.com>
2022-05-26 10:32:06 -04:00
Marek Behún
00b1bad961 net: mdio-uclass: add dm_phy_find_by_ofnode() helper
Add helper to resolve PHY node from it's ofnode via DM MDIO subsystem.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-05-04 07:05:51 +02:00
Simon Glass
4fd8d077cb bootstd: ethernet: Add a bootdev driver
Add a bootdev driver for Ethernet. It can use the PXE boot mechanism to
locate a file, added later.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:04 -04:00
Lyle Franklin
85f8e03b2a Allow colon in PXE bootfile URLs
- U-boot's PXE flow supports prefixing your bootfile name with an
  IP address to fetch from a server other than the DHCP server,
  e.g. `hostIPaddr:bootfilename`:
  a93907c43f
- However, this breaks bootfile paths which contain a colon, e.g.
  `f0:ad:4e:10:1b:87/7/pxelinux.cfg/default`
- This patch checks whether the `hostIPaddr` prefix is a valid
  IP address before overriding the serverIP otherwise the whole
  bootfile path is preserved

Signed-off-by: Lyle Franklin <lylejfranklin@gmail.com>
2022-04-22 15:44:10 -04:00
Arjan Minzinga Zijlstra
1ffe366881 net: tftp: fix tftp server initialization
Some globals where not properly initialized causing timeouts
as data packets where not immediately acknowledged.

Fixes: cc6b87ecaa ("net: tftp: Add client support for RFC 7440")
Signed-off-by: Arjan Minzinga Zijlstra <arjan.minzingazijlstra@fox-it.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-12 22:41:27 +03:00
Marek Behún
ffb0f6f488 treewide: Rename PHY_INTERFACE_MODE_NONE to PHY_INTERFACE_MODE_NA
Rename constant PHY_INTERFACE_MODE_NONE to PHY_INTERFACE_MODE_NA to make
it compatible with Linux' naming.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:13 +03:00
Marek Behún
123ca114e0 net: introduce helpers to get PHY interface mode from a device/ofnode
Add helpers ofnode_read_phy_mode() and dev_read_phy_mode() to parse the
"phy-mode" / "phy-connection-type" property. Add corresponding UT test.

Use them treewide.

This allows us to inline the phy_get_interface_by_name() into
ofnode_read_phy_mode(), since the former is not used anymore.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-04-10 08:44:12 +03:00
Marek Behún
1776a24bbb treewide: use dm_mdio_read/write/reset() wrappers
Use the new dm_mdio_read/write/reset() wrappers treewide, instead of
always getting and dereferencing MDIO operations structure pointer.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:12 +03:00
Marek Behún
351bfa6ebd net: mdio-uclass: add wrappers for read/write/reset operations
Add wrappers dm_mdio_read(), dm_mdio_write() and dm_mdio_reset() for
DM MDIO's .read(), .write() and .reset() operations.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:12 +03:00
Marek Behún
f3dd213e15 net: introduce helpers to get PHY ofnode from MAC
Add helpers ofnode_get_phy_node() and dev_get_phy_node() and use it in
net/mdio-uclass.c function dm_eth_connect_phy_handle(). Also add
corresponding UT test.

This is useful because other part's of U-Boot may want to get PHY ofnode
without connecting a PHY.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-10 08:44:12 +03:00
Marek Behún
a7a96ef812 net: mdio-uclass: use ARRAY_SIZE()
Use the ARRAY_SIZE() macro instead of hardcoding sizes of arrays in
macros.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:12 +03:00
Marek Behún
6fb4482ea2 net: mdio-uclass: fix type for phy_mode_str and phy_handle_str
These global variables should both have type
  static const char * const

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:12 +03:00
Tom Rini
0b956e3987 Convert CONFIG_SYS_RX_ETH_BUFFER to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_RX_ETH_BUFFER

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-25 12:01:15 +00:00
Tom Rini
5842c8107d Convert CONFIG_TFTP_PORT to Kconfig
This converts the following to Kconfig:
   CONFIG_TFTP_PORT

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-25 12:01:15 +00:00
Tom Rini
1d5686acfd Convert CONFIG_SYS_FAULT_ECHO_LINK_DOWN to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_FAULT_ECHO_LINK_DOWN

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-25 12:01:15 +00:00
Tom Rini
eeda762af3 Convert CONFIG_NFS_TIMEOUT to Kconfig
This converts the following to Kconfig:
   CONFIG_NFS_TIMEOUT

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-18 12:48:17 -04:00
Tom Rini
01d1b99c9b Convert CONFIG_NET_RETRY_COUNT to Kconfig
This converts the following to Kconfig:
   CONFIG_NET_RETRY_COUNT

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-18 12:48:17 -04:00
Tom Rini
5d4e863bf8 Convert CONFIG_ARP_TIMEOUT to Kconfig
This converts the following to Kconfig:
   CONFIG_ARP_TIMEOUT

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-18 12:48:17 -04:00
Tom Rini
f0171e7ea7 net: Remove CONFIG_BOOTP_DHCP_REQUEST_DELAY
This option is not in use anywhere and the documentation implies it's
for some very old and unlikely to be seen currently issues.  Rather than
update the code so the CONFIG symbol could be easily in Kconfig, remove
the code.

Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Ramon Fried <rfried.dev@gmail.com>
2022-03-03 16:51:20 -05:00
Simon Glass
434075393d net: Drop #ifdefs with CONFIG_BOOTP_SERVERIP
Use IS_ENABLED() instead, to reduce the number of build paths.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-01-21 14:01:35 -05:00
Simon Glass
d3877fba31 Convert CONFIG_BOOTP_SERVERIP to Kconfig
This converts the following to Kconfig:
   CONFIG_BOOTP_SERVERIP

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-21 14:01:35 -05:00
Simon Glass
d6b318de2f Convert CONFIG_TIMESTAMP to Kconfig
This converts the following to Kconfig:
   CONFIG_TIMESTAMP

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-21 14:01:34 -05:00
Simon Glass
4b37fd146b Convert CONFIG_UDP_CHECKSUM to Kconfig
This converts the following to Kconfig:
   CONFIG_UDP_CHECKSUM

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-21 14:01:34 -05:00
Simon Glass
3df6cd4d63 Convert CONFIG_KEEP_SERVERADDR to Kconfig
This converts the following to Kconfig:
   CONFIG_KEEP_SERVERADDR

Drop the preprocessor usage also.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-21 14:01:34 -05:00
Tom Rini
280db76f15 Pull request doc-2022-04-rc1
Replace @return by Return: in code comments.
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Merge tag 'doc-2022-04-rc1' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request doc-2022-04-rc1

Replace @return by Return: in code comments.
2022-01-20 09:39:45 -05:00
Heinrich Schuchardt
185f812c41 doc: replace @return by Return:
Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19 18:11:34 +01:00
Tom Rini
068415eade Xilinx changes for v2022.04-rc1
gpio:
 - Add modepin driver
 
 net:
 - Save random mac addresses to eth variable
 
 zynqmp gem:
 - Add support for mdio bus DT description
 - Add support for reset and SGMII phy configuration
 - Reduce timeout for MDIO accesses
 
 zynqmp clk:
 - Fix clock handling for gem and usb
 
 phy:
 - Add zynqmp phy/serdes driver
 
 serial:
 - Add one missing compatible string
 
 microblaze:
 - Symbol alignement
 - SPL fixups
 - Code cleanups
 
 zynqmp:
 - Various dt changes, DP pre-reloc, gem resets, gem clocks
 - Switch SOM to shared psu configuration
 - Move dcache handling to firmware driver
 - Workaround gmii2rgmii DT description issue
 - Enable broadcasts again
 - Change firmware enablement logic
 - Small adjustement in firmware driver
 
 versal:
 - Support new mmc@ DT nodes
 - Fix run time variable handling
 - Add missing I2C_PMC ID for power domain
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Merge tag 'xilinx-for-v2022.04-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2022.04-rc1

gpio:
- Add modepin driver

net:
- Save random mac addresses to eth variable

zynqmp gem:
- Add support for mdio bus DT description
- Add support for reset and SGMII phy configuration
- Reduce timeout for MDIO accesses

zynqmp clk:
- Fix clock handling for gem and usb

phy:
- Add zynqmp phy/serdes driver

serial:
- Add one missing compatible string

microblaze:
- Symbol alignement
- SPL fixups
- Code cleanups

zynqmp:
- Various dt changes, DP pre-reloc, gem resets, gem clocks
- Switch SOM to shared psu configuration
- Move dcache handling to firmware driver
- Workaround gmii2rgmii DT description issue
- Enable broadcasts again
- Change firmware enablement logic
- Small adjustement in firmware driver

versal:
- Support new mmc@ DT nodes
- Fix run time variable handling
- Add missing I2C_PMC ID for power domain
2022-01-19 11:43:44 -05:00
Christian Gmeiner
046bf8d4c5 net: fastboot: make UDP port net: configurable
The fastboot protocol uses per default the UDP port 5554. In some cases
it might be needed to change the used port. The fastboot utility provides
a way to specifiy an other port number to use already.

  fastboot -s udp:192.168.1.76:1234 boot fastboot.img

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-01-15 18:54:21 +02:00
Vladimir Oltean
0fa4448d51 net: dsa: fix phydev->speed being uninitialized for the CPU port fixed PHY
If the DSA API is going to allow drivers to do things such as:

- phy_config in dsa_ops :: port_probe
- phy_startup in dsa_ops :: port_enable

then it would actually be good if the ->port_probe() method would
actually be called in all cases before the ->port_enable() is.

Currently this is true for user ports, but not true for the CPU port,
because the CPU port does not have a udevice registered for it (this is
all part of DSA's design). So the current issue is that after
phy_startup has finished for the CPU port, its phydev->speed is an
uninitialized value, because phy_config() was never called for the
priv->cpu_port_fixed_phy, and it is precisely phy_config() who copies
the speed into the phydev in the case of the fixed PHY driver.

So we need to simulate a probing event for the CPU port by manually
calling the driver's ->port_probe() method for the CPU port.

Fixes: 8a2982574854 ("net: dsa: introduce a .port_probe() method in struct dsa_ops")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-01-15 18:49:03 +02:00
Michal Simek
381e6e5494 net: uclass: Save generated ethernet MAC addresses to the environment
When a MAC address is randomly generated we currently only update the
appropriate data structure.  For consistency and to re-align with
historic usage, it should be also saved to the appropriate environment
variable as well.

Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
[trini: Update Kconfig, handle legacy networking case as well]
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Ramon Fried <rfried.dev@gmail.com>
Link: https://lore.kernel.org/r/1a2518e3cc19c14a41875ef64c5acc1f16edc813.1641893287.git.michal.simek@xilinx.com
2022-01-11 10:33:42 +01:00
Bin Meng
c7ae46efdc net: dsa: Use true instead of 1 in the set_promisc() call
set_promisc() call accepts the parameter of a bool type. Make it
clear by using true instead of 1.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-23 09:57:56 +02:00
Walter Stoll
d4a660aafa net: bootp: Correct VCI string transmission
The VCI string sent during bootp of U-Boot-SPL is corrupt. This is
because the byte counter is not adjusted within the bootp_extended()
function when the VCI string is added. We fix this.

Signed-off-by: Walter Stoll <walter.stoll@duagon.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-11-23 09:57:56 +02:00
Vladimir Oltean
0783b16509 net: dsa: allow drivers to get the port OF node
In the current DSA switch driver API, only the udevice of the switch
(belonging to UCLASS_DSA) is exposed, as well as an "int port" argument.
So drivers do not have access to the udevice of individual ports
(belonging to UCLASS_ETH), one of the reasons being that not all ports
have an associated UCLASS_ETH udevice.

However, all DSA ports have an OF node, and in some cases the driver
needs a handle to it, for all ports including the CPU port. Example: the
following Linux per-port device tree property:

	managed = "in-band-status";

states whether a port should operate with clause 37 in-band autoneg
enabled or not.

This patch exposes a function which can be called by individual drivers
as needed.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-23 09:57:55 +02:00
Wolfgang Denk
66356b4c06 WS cleanup: remove trailing empty lines
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 08:08:56 -04:00
Tom Rini
6eecaf5d0f Merge branch 'network_master' of https://source.denx.de/u-boot/custodians/u-boot-net into next
- Fix some non-NULL terminated strings in the networking subsystem
- net: tsec: Mark tsec_get_interface as __maybe_unused
2021-09-29 07:58:20 -04:00
Vladimir Oltean
4fdc7e3530 net: dsa: ensure port names are NULL-terminated after DSA_PORT_NAME_LENGTH truncation
strncpy() simply bails out when copying a source string whose size
exceeds the destination string size, potentially leaving the destination
string unterminated.

One possible way to address is to pass DSA_PORT_NAME_LENGTH - 1 and a
previously zero-initialized destination string, but this is more
difficult to maintain.

The chosen alternative is to use strlcpy(), which properly limits the
copy len in the (srclen >= size) case to "size - 1", and which is also
more efficient than the strncpy() byte-by-byte implementation by using
memcpy. The destination string returned by strlcpy() is always NULL
terminated.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-28 18:50:57 +03:00
Vladimir Oltean
bf35c3121a net: mdio-uclass: rewrite dm_mdio_post_probe using strlcpy
dm_mdio_post_probe used to be vulnerable after truncation, but has been
patched by commit 398e7512d8 ("net: Fix Covarity Defect 244093").
Nonetheless, we can use strlcpy like the rest of the code base now,
which yields the same result.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-28 18:50:57 +03:00
Vladimir Oltean
5ecdf0a5a4 net: dsa: remove unused variables
"dev" and "dsa_pdata" are unused inside dsa_port_of_to_pdata.

"dsa_priv" is unused inside dsa_port_probe.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-28 18:50:56 +03:00
Vladimir Oltean
5cc283b781 net: dsa: pass CPU port fixed PHY to .port_disable
While adding the logic for DSA to register a fixed-link PHY for the CPU
port, I forgot to pass it to the .port_disable method too, just
.port_enable.

Bug had no impact for felix_switch.c, due to the phy argument not being
used, but ksz9477.c does use it => NULL pointer dereference.

Fixes: fc054d563b ("net: Introduce DSA class for Ethernet switches")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-09-28 18:50:56 +03:00
Vladimir Oltean
4b46e83885 net: dsa: introduce a .port_probe() method in struct dsa_ops
Some drivers might want to execute code for each port at probe time, as
opposed to executing code just-in-time for the port selected for
networking.

To cater to that use case, introduce a .port_probe() callback method
into the DSA switch operations which is called for each available port,
at the end of dsa_port_probe().

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Tested-by: Michael Walle <michael@walle.cc>
2021-09-28 18:50:56 +03:00